A triple victory. The winner of 2011 s test has reason to be

science & technology modules yield measurement test Highlights Text: Jochen Siemer A triple victory SunPower modules dominate the 2012 PHOTON module yield test, decisively claiming the first three places The results revealed by the PHOTON module yield test 2012 are considerably better than those from the previous year, with the best performance ratio this time beating the previous test s best performer by 4.4 percent An increase in quality due to the large number of new products in the test field which is three times the size of last year s is a significant, but not singular, reason for this positive outcome The dominance of SunPower whose modules took the the top three places initially seems crushing, but a closer look reveals some strong contenders The winner of 2011 s test has reason to be content: it managed to improve on the performance that easily won it last year s first place. Model REC230AE, made by Norwegian solar group Renewable Energy Corp. ASA (REC), generated an annual yield of 1,097.9 kwh per kw on PHOTON s module test field in Aachen, Germany the world s largest of its kind. The total was somewhat higher the year before, at 1,150.4 kwh. But these two figures are not suited to a direct comparison in 2011, the modules could benefit from higher total irradiation. A better figure to compare is the respective ratio between the potential kilowatt hour total and the actual one achieved, which is the performance ratio. This was 90.8 percent for test year 2011, but was, in contrast, 91.4 percent for 2012. A top performance at least at first glance. A closer analysis, however, reveals that this improvement brought few benefits. The product that set the bar for the previous PHOTON module yield measurement only reached the 27 th spot this year (see table, p. 80). The performance ratio of the REC module fell well short of the ratio achieved by the current test winner, SunPower SPR-327NE-WHT-D, which exhibited a performance ratio of 95.2 percent. That means that there were another 25 candidates that also trumped last year s champion. This is no reason for the Norwegians to get the blues. The REC230AE is still a good solar 74 February 2013

Fotostudio Arnolds e.k. / photon-pictures.com A competitive environment: The PHOTON module test field when the annual measurement began in January 2012. module. And yet the decline in its position in the overall rankings clearly demonstrates that the PHOTON module test field is not just being used to collect row after row of dull and bonedry data. With a little pathos, one could speak of preserving industrial history because at the end of the day, this technology will be an important, and probably even an indispensable, mainstay of our energy supply in the near future. The rapid improvement in the means of production is both pleasing and highly significant. Tripling the test field The sober facts of the situation need to be addressed first, however. A first, and immediately apparent, reason for the upheaval in the rankings is the growth this outdoor test has undergone: In 2011, the annual yield could be determined for 46 types of modules. A further 77 candidates underwent some testing in 2012 but were added over the course of the year, so no annual yield was obtained. This year, however, annual yield results for these 77 modules are now available. An February 2013 75

science & technology modules yield measurement test Frank Schuberth / photon-pictures.com Ample growth: More than 100 new types of modules were added to PHOTON Lab s outdoor test field over the course of 2011. additional 32 types of modules arrived on the test field just in time for installation in January 2012. These modules were also included in the 2012 annual assessment. Because a total of four modules could not be subjected to testing for technical reasons (see box, p. 79), a total of 151 candidates remain for which the performance ratio could be determined for 2012. In comparison to the previous test, the size of the field of participants has more than tripled. Next year, to clarify this from the start, growth is expected to continue, but not quite as dramatically as it did last year: Currently there are 187 different types of modules being tested on the field, minus the occasional problematic case that experience has shown to be unavoidable. That means, in 12 months time, there will be around 180 candidates vying for the best annual yield. One manufacturer in particular was clearly able to stake its claim to be the best in 2012: Sun- Power Corp. sent three modules in for testing in January 2012 and these three modules took first, second and third place in the annual assessment. With performance ratios ranging between 94.8 and 95.2 percent, the SunPower modules seem to have entered a new dimension, beating REC s top mark of 90.8 percent achieved last year by 4.4 percentage points. However, the situation is not quite as clear-cut as it might seem after all, even the REC230AE improved significantly in the current test, with a performance ratio of 91.4 percent. And all other modules that underwent testing in both 2011 and 2012 followed suit. A number of them even managed much more substantial improvements than last year s winner: The SLK60P6L 230Wp made by Spanish manufacturer Siliken SL, which took second place after the REC module in 2011 with a performance ratio of 86.9 percent, enhanced its performance by 3.1 percentage points to arrive at 92.7 percent which ultimately only earned it 8 th place. Other candidates that took the spots behind the REC module in 2011 and were able to beat it in 2012 include the CSG180S1-35/36 made by CSG PV Tech Co. Ltd., the NT-125AX from Nexpower Technology Corp., the Sunmodule Plus SW 225 mono made by SolarWorld AG and the Aleo S_18 225 from Aleo Solar AG. Speaking of»approximately«the reason for the generally higher performance ratios in test year 2012 in comparison to 2011 is, above all, a consistent policy of noninterference: the modules were neither cleaned nor cleared of snow. In 2011 they were therefore subjected to a longer period of snow cover than in 2012. The irradiation sensors, in contrast, which are used to record the available quantity of sunlight, are not as severely affected by these conditions. The performance ratio in years with more snow or what is considered a lot of snow in Aachen therefore changes to the disadvantage of the test candidates. Furthermore, total irradiation is, of course, never just total irradiation: Even when the numerical figure for irradiation is exactly the same in two different years something that is unlikely it is still produced in different ways. Ideal weather for solar modules, which means lots of sunlight at low temperatures, is rather rare. The proportion of hot, sunny days on which modules with low temperature coefficients have an advantage compared to the proportion of days with cloudy weather on which modules with a good weak light response do better will always vary. So weather will sometimes help one product and sometimes another to achieve better results. This is exactly why an evaluation of quality not only has to include the decisive factor performance ratio, but also logging the weak light behavior and homogeneity (see article, p. 84). Movements in the ranking are also the result of the simple fact that even measurements recorded exactly to the second and using highquality equipment are still not absolutely precise. The measuring tolerance is, in terms of the module test device, 1.8 percent. This is a maximum value, and it would be a highly improbable 76 February 2013

science & technology modules yield measurement test coincidence should all deviations exhaust the tolerance in one direction or the other. However, differences in the performance ratio of various test candidates that are limited to +/-0.5 percentage points may or must be assessed as approximately the same result. Even if the word»approximately«is the last one anyone wants to hear at the test bench. Obviously this does not change PHOTON Lab s claim that its module yield measurement is not only the world s largest, but also the most detailed, test series of its type. And it changes nothing about the clear victory achieved by the SunPower modules. After all, even the last of the winning SunPower threesome beat out the closest competition the SRP-220-6PB made by Seraphim Solar System Co. Ltd. by 1.2 percentage points. Does this make the dark black SunPower cells an unrivaled product? Quality is a question of price Manufacturers of the top-ranking modules would, understandably, be more than happy to interpret the test result in this way; however, there are of course a number of arguments to the contrary. The performance ratio is the text continues on p. 83 Gathering data: Each module generally three specimens for each test product is fitted with a meter that records the IV curve once every second. Guido Schiefer / photon-pictures.com 78 February 2013

Unassessed modules The modules that remain unassessed in the PHOTON International module yield measurement for 2012 are those 27 products that have not completed a full year of testing. There are also a number of cases in which a punctual start to testing still failed to result in a complete evaluation. We are currently having problems with all our CIS modules, as the measurement of their performance under STC (standard testing conditions) has not been clearly defi ned. This is due to the fact that the output from a CIS module changes with the amount of time it is exposed to the sun it does, in fact, increase. Because the STC measurement does not include how long and to what intensity of light a CIS module has been exposed before tests begin, it is not possible to compare the STC values specifi ed by the manufacturers. An STC value measured by PHOTON Lab must defi ne how long the module has already been exposed to the sun at the time of measuring. We are currently discussing this matter with CIS manufacturers but have still not arrived at a fi nal decision. We will be addressing this topic in one of the upcoming editions of PHOTON International. This mainly concerns the two CIS module types Shell PowerMax Eclipse 80-C and Solibro SL1-95. Two other types of modules Latitude P6-60/6 (235) and Mage Powertec Plus 230/6PO exhibited signs of potential-induced degradation (PID). Because the modules on the test fi eld are not connected in series, the high potentials against ground that cause this phenomenon are usually avoided. The two module types affected were able to be»repaired«by temporarily applying positive high voltage or grounding them on the negative side. However, an analysis of the annual yield suitable for comparison with those made on the rest of the test fi eld could not be made. These modules had already been removed from the evaluation in 2011 following the sudden occurrence of power losses (see PI 2/2011); however, at the time the PID explanation remained undetected. Also remaining unevaluated is the YL260C-30b (Panda) produced by Yingli Green Energy. The»Panda«solar cells used in the module have (just like the back contact cells from SunPower) a significantly higher capacity than other crystalline solar cells. For these cells, the standard test device that PHOTON Lab developed for yield measurements is too imprecise. The time in which the measuring unit delineates the IV curve is, at 20 to 30 milliseconds, far too short. This makes the values measured a rather low estimate. In order to measure high-capacitive modules, a new measuring unit has been developed. This unit has recently been used on the SunPower modules for the very first time. It will now also be used for the Panda cells, allowing them to be included in next year s evaluation. Incidentally, the fi rst results are highly promising. Even a cautious estimate suggests the Panda modules will seriously test SunPower s dominance. js Visit us Inter Solar 2012 Germany Booth No A3/140 UE Solar Co., Ltd. Add: 15F, Changfa Building 5, Yanzheng Middle Road, Wujin District, Changzhou, Jiangsu, 213161, Tel: 86-519-89850166 Fax: 86-519-89850100 E-mail: sales@uesolar.com Http://www.uesolar.com February 2013 79

science & technology modules yield measurement test PHOTON Lab s outdoor module tests: Results of 2012 yield measurements Rank Manufacturer Model Production dates* 1 Installed in Yield in kwh/m² Performance ratio Yield in kwh/kw Deviation from test winner (%) 1 SunPower SPR-327NE-WHT-D 2012 228.7 95.2% 1,144.1 2 SunPower SPR-320NE-WHT-D 2012 227.6 94.9% 1,140.1 0.35% 3 SunPower SPR-245NE-WHT-D 2012 225.3 94.8% 1,139.4 0.42% 4 Seraphim Solar System SRP-220-6PB 2011 156.1 93.6% 1,125.5 1.63% 5 Yingli Green Energy YL240P-29b 2012 169.2 93.1% 1,118.7 2.22% 6 ET Solar ET-P660240 2011 161.6 92.8% 1,115.3 2.51% 7 Sunerg Solar XP 60/156-230 2011 154.6 92.8% 1,115.0 2.55% 8 Siliken SLK60P6L 230Wp 2009 158.0 92.7% 1,114.2 2.61% 9 Jinko Solar JKM190M-72 2010 2011 166.1 92.5% 1,112.2 2.79% 10 Huanghe HH230(30)P 2012 157.1 92.5% 1,112.1 2.80% 11 Jinko Solar JKM235P-60 2012 156.8 92.5% 1,111.4 2.86% 12 Apollo Solar 235G6M 2011 2012 163.9 92.3% 1,109.0 3.07% 13 CSG PV Tech CSG180S1-35/36* 6 2008 2010 159.1 92.0% 1,106.1 3.32% 14 NexPower Technology NT-125AX* 2 20092010 2010 87.7 92.0% 1,105.9 3.34% 15 Linsun Renewable SK60P6 2011 155.8 92.0% 1,105.6 3.36% 16 Huanghe HH190(36)M 2012 164.7 91.9% 1,104.5 3.47% 17 Nelumbo NEI 230-3VA 2011 153.8 91.8% 1,103.7 3.53% 18 Schott Solar* 15 SCHOTT PERFORM Poly 235 Since 2011 2012 139.7 91.8% 1,103.4 3.56% 19 Conergy Conergy PowerPlus 235P 2012 162.2 91.7% 1,101.8 3.70% 20 SolarWorld Sunmodule Plus SW 225 mono 2009 2010 153.8 91.6% 1,100.4 3.82% 21 Upsolar UP-M220P 20102011 2011 147.8 91.5% 1,099.3 3.92% 22 Aleo Solar Aleo S_18 225 2005 2010 154.5 91.5% 1,099.3 3.92% 23 ZN Shine PV-Tech ZX250(48)MS 2011 163.1 91.5% 1,099.1 3.93% 24 CNPV Solar CNPV-240P 2006 2011 162.9 91.4% 1,099.0 3.94% 25 Himin Clean Energy HG-190S/Ba 2012 167.0 91.4% 1,098.9 3.95% 26 REC Premium 210 Until 2008 2011 141.2 91.4% 1,098.0 4.03% 27 REC REC230AE* 2 20072010 2010 152.1 91.4% 1,097.9 4.04% 28 Win Win Precision Winaico WSP-250P6 2012 164.9 91.3% 1,097.6 4.06% 29 Chint Solar / Astronergy CHSM5612M-185 2012 160.6 91.3% 1,097.1 4.11% 30 V-Energy VE260PV 2012 155.1 91.3% 1,097.1 4.11% 31 Hareon Solar HR-230P-18/Bb 2011 156.1 91.3% 1,096.9 4.13% 32 Solar Modules Nederland TC245-MO 20102011 2011 165.0 91.3% 1,096.7 4.14% 33 Kinmac Solar* 13 KSS-6P6A-230 2010 2011 156.5 91.3% 1,096.7 4.14% 34 Kioto Photovoltaics KPV 210 PE* 2 20082010 2009 152.0 91.2% 1,095.9 4.21% 35 BP Solar BP 3220 T Until 2011 2011 152.4 91.1% 1,094.5 4.34% 36 Solon SOLON Blue 230/07(225) 2008 2011 151.4 91.1% 1,094.3 4.36% 37 ITS Innotech Solar EcoPlus ITS220ECU5* 10 2011 2012 160.6 90.9% 1,092.2 4.53% 38 SolarWorld Sunmodule Plus SW 245 poly 2012 160.4 90.9% 1,092.1 4.54% 39 Amerisolar AS-5M-190W 2012 166.4 90.9% 1,092.1 4.54% 40 Win Win Precision Winaico WSP-235P6 2010 157.9 90.8% 1,091.7 4.58% 41 REC REC230PE 2010 2011 157.1 90.8% 1,091.0 4.64% 42 Eurener PEPV230 2012 153.7 90.8% 1,090.8 4.66% 43 CNPV Solar CNPV-220P 2006 2011 150.0 90.8% 1,090.7 4.66% 44 Sunlink PV SL220-20M230 2011 157.2 90.7% 1,090.6 4.68% 45 CH Solar CH Solar 180 mono* 2 Until 2010 2010 157.1 90.7% 1,090.2 4.71% 46 Sunergy CSUN260-60M 2012 170.9 90.7% 1,090.1 4.72% 47 Amerisolar AS-6P30-230W 2012 157.3 90.6% 1,089.2 4.80% 48 CNPV Solar CNPV-185M 2006 2010 164.9 90.6% 1,089.0 4.82% 49 Upsolar UP-M180M 20102011 2010 154.3 90.5% 1,087.9 4.91% 50 M-Prime M 235P 2012 162.6 90.5% 1,087.4 4.95% 51 Sunflower Light SF125x125-72-M(180) 2011 150.0 90.5% 1,087.3 4.96% 52 Risen Energy SYP185S-M 2011 162.8 90.5% 1,087.3 4.97% 53 PV Power Technologies PVQ3 220 2008 2009 150.0 90.4% 1,087.0 4.99% 54 SWAT-International SWAT-240-PS 2011 162.3 90.4% 1,086.2 5.06% 55 Bisol BMU-215-2/233 2009 2011 156.0 90.4% 1,086.0 5.08% 56 Conergy Conergy PowerPlus 220P 2009 2010 149.4 90.3% 1,085.8 5.09% 57 CEEG Solar* 5 SST 240-60M 2005 2011 160.2 90.3% 1,085.6 5.12% 58 Sunergy CSUN250-60M 2012 166.4 90.3% 1,085.4 5.13% 59 Linuo LN180(36)M-185 2003 2011 162.6 90.3% 1,085.2 5.15% 60 JCS Solar* 11 JCSM290M-72* 12 2012 166.1 90.3% 1,085.2 5.15% 61 Galaxy Energy GS260m-96 2011 164.3 90.3% 1,085.0 5.17% 62 Mage Solar Mage Powertec Plus 225/6PJ Until 2011 2009 153.4 90.2% 1,084.4 5.22% 80 February 2013

PHOTON Lab s outdoor module tests: Results of 2012 yield measurements Rank Manufacturer Model Production dates* 1 Installed in Yield in kwh/m² Performance ratio Yield in kwh/kw Deviation from test winner (%) 63 CEEG Solar* 5 SST 265-72P 2005 2011 157.0 90.2% 1,084.1 5.24% 64 Axitec AC 236P/156-60S Until 2011 2011 152.1 90.2% 1,084.0 5.25% 65 SolarWorld Sunmodule Plus SW 225 poly 20042011 2011 147.5 90.2% 1,084.0 5.25% 66 Solaria Energía S6P2G225 2010 2011 154.8 90.2% 1,083.8 5.27% 67 CSG PV Tech CSG230M2-30* 7 2008 2010 151.7 90.1% 1,083.3 5.31% 68 Trina Solar TSM-180DC01 2007 2009 149.1 90.1% 1,083.2 5.33% 69 Trina Solar TSM-225PC05 2010 153.9 90.1% 1,083.1 5.33% 70 Ningbo Solar Sun Earth TDB125x125-72-P 180W* 2 Until 2010 2011 151.6 90.1% 1,083.0 5.34% 71 Vikram Solar ELDORA 220 2011 156.8 90.0% 1,082.2 5.41% 72 Mage Solar Mage Powertec Plus 230/6PH-US 2011 154.7 90.0% 1,081.5 5.47% 73 Daqo New Energy DQ235PSCa 2012 157.8 89.9% 1,080.5 5.56% 74 Magi Solar MGSM-295-D 2011 2011 163.7 89.9% 1,079.9 5.61% 75 Eging Photovoltaic Technology EGM-185 2010 2011 159.0 89.9% 1,079.9 5.61% 76 Linuo LN240(30)P-225 2003 2011 155.6 89.8% 1,079.0 5.69% 77 S-Energy SM-220PA8 2009 152.0 89.6% 1,076.9 5.87% 78 Bosch Solar Bosch c-si M 60 230 20092010 2011 153.0 89.6% 1,076.5 5.91% 79 Frankfurt Solar FS215W-POLY 2009 147.9 89.5% 1,075.7 5.98% 80 Zentralsolar Deutschland Genius SDM 185-10004-185 2011 160.2 89.5% 1,075.6 5.99% 81 Hanwha SolarOne* 9 SF160-24-1M175 (scac) 2010 153.8 89.5% 1,075.6 5.99% 82 Topray Solar TPS105T-180W 2011 155.3 89.5% 1,075.6 5.99% 83 BP Solar BP 3280 T Until 2011 2011 155.3 89.5% 1,075.4 6.00% 84 Bisol BMU-215-2/221 2007 2010 150.2 89.5% 1,075.3 6.01% 85 Talesun Solar TP572M-195 2011 2012 164.7 89.5% 1,075.1 6.03% 86 Solarwatt M220-60 GET AK (230) 2005 2011 149.9 89.4% 1,075.0 6.04% 87 Solarbest Energy-Tech ZSB M190 2011 156.2 89.4% 1,074.6 6.08% 88 Jinko Solar JKM255M-96 2011 164.1 89.4% 1,074.3 6.10% 89 Kenmec Mechanical TKSA-23001 2011 153.9 89.4% 1,074.3 6.10% 90 Fluitecnik FTS-220 P 2011 153.7 89.4% 1,074.1 6.11% 91 Runda PV RS230P-60 2012 155.7 89.3% 1,073.8 6.15% 92 Suntech Power STP205-18/Ud 2011 156.2 89.3% 1,073.7 6.15% 93 Magi Solar MGSM-240D-60 2011 162.0 89.3% 1,073.1 6.20% 94 Sunrise Solartech SRM 180D72-GE 2009 152.2 89.3% 1,072.9 6.22% 95 Yingli Green Energy YL210P-29b 2009 2011 141.0 89.3% 1,072.8 6.23% 96 Lilie Energie Lilie SPL 185 2011 155.3 89.3% 1,072.8 6.23% 97 SolarWorld Sunmodule Plus SW 210 poly* 16 2004 2006 135.5 89.2% 1,072.5 6.26% 98 Zytech Engineering ZT 230P 2011 150.9 89.2% 1,072.5 6.26% 99 Solargate SG-2350 2012 163.0 89.2% 1,071.9 6.31% 100 Topsolar Green TSM72-125M-190W 2011 155.6 89.2% 1,071.6 6.33% 101 Upsolar UP-M185M 20102011 2011 158.3 89.1% 1,071.3 6.37% 102 CNPV Solar CNPV-240M 2006 2011 163.1 89.1% 1,071.2 6.37% 103 Sonalis* 14 SL-180CE-36M 2010 154.7 89.0% 1,070.0 6.48% 104 Scheuten Solar Multisol P6-60 2011 153.4 89.0% 1,069.7 6.50% 105 Sunergy CSUN240-60P 2012 160.9 89.0% 1,069.5 6.52% 106 Sunage SAM 96/5 2011 154.1 88.9% 1,068.8 6.58% 107 Ningbo Solar Sun Earth TDB125x125-72-P 160W* 2 2011 134.8 88.8% 1,067.8 6.67% 108 Chint Solar / Astronergy CHSM-6610P-230 2012 152.5 88.8% 1,067.7 6.68% 109 Ferrania Solis AP 60-230 2010 2011 210.5 88.8% 1,067.3 6.71% 110 Hanwha SolarOne* 9 SF160-24-1M180 2011 148.8 88.7% 1,066.4 6.79% 111 Sunpeak / Alpexsolar* 4 ALP235W* 2 20092010 2010 154.3 88.7% 1,066.3 6.80% 112 Jetion Solar JT230(30)P1655x992 2005 2011 151.1 88.7% 1,066.0 6.83% 113 Alex Solar ALM-190D-24 2009 2011 157.6 88.7% 1,065.8 6.84% 114 CNPV Solar CNPV-190M 2006 2011 164.3 88.7% 1,065.6 6.86% 115 Aide Solar AD195M5-Aa 2011 164.7 88.6% 1,065.0 6.91% 116 Helios Technology H3A230P 2012 151.5 88.5% 1,063.5 7.04% 117 Luxor Solar LX-185M/125-72+ 2007 2011 156.4 88.4% 1,062.7 7.12% 118 Axitec AC-250M/156-60S 2012 162.1 88.4% 1,061.9 7.19% 119 Lilie Energie Lilie SPL 185-I 2011 155.2 88.3% 1,061.6 7.21% 120 Evergreen Solar ES-E-210-fc3 2011 136.3 88.1% 1,058.8 7.45% 121 Win Win Precision Winaico WSP-230P6 2009 2009 149.4 88.0% 1,057.9 7.53% 122 Shell Solar (now with SolarWorld) Shell SQ 150-C* 2 Until 2005 2006 124.5 87.8% 1,054.9 7.79% 123 Solar-Fabrik Premium L poly (225) 2011 142.0 87.7% 1,054.3 7.85% 124 Day4 Energy Day4 48MC 185 2006 2011 152.3 87.6% 1,053.3 7.93% February 2013 81

science & technology modules yield measurement test PHOTON Lab s outdoor module tests: Results of 2012 yield measurements Rank Manufacturer Model Production dates* 1 Installed in Yield in kwh/m² Performance ratio Yield in kwh/kw Deviation from test winner (%) 125 Sharp NU-185E1 2005 2011 148.3 87.5% 1,052.1 8.04% 126 Evergreen Solar ES-A-210-fa2 2008 2011 140.7 87.5% 1,052.0 8.05% 127 Perfectenergy PEM-180/185-72M-SCC 2008 2010 157.0 87.4% 1,050.8 8.15% 128 Hanwha SolarOne* 9 SF160 M5-24 (175 W)* 2 2007 143.2 87.4% 1,050.0 8.22% 129 Kyocera KD210GH-2PU 2009 2011 149.3 87.2% 1,048.5 8.35% 130 Sonalis* 14 SL-190CE-36M 2012 154.7 87.2% 1,047.8 8.42% 131 First Solar FS-265 20062011 2007 94.8 86.9% 1,043.9 8.76% 132 Emmvee Photovoltaics ES-230P60* 8 20082011 2010 144.0 86.5% 1,039.9 9.11% 133 Schott Solar* 15 SCHOTT POLY TM 220 20082009 2011 157.9 86.4% 1,038.1 9.27% 134 IBC Solar IBC MonoSol 240 TT Until 2011 2011 153.7 86.3% 1,036.9 9.37% 135 Suntech Power STP190-18/Ub* 2 2005 2011 128.8 86.1% 1,034.8 9.55% 136 Sovello SV-X-205-fa1 2011 135.3 85.8% 1,030.7 9.91% 137 Calrays CPM 250-A-96 2011 149.7 85.3% 1,024.7 10.43% 138 Solar-Fabrik SF 130/4-130* 2 20062010 2010 133.8 85.2% 1,023.7 10.52% 139 Evergreen Solar EC-120* 2 20042006 2006 120.1 85.1% 1,022.7 10.61% 140 Sovello SV-X-200-fa* 13 20092011 2011 132.3 84.9% 1,019.8 10.87% 141 Canadian Solar CS6A-170P 2007 (purchased) 2007 135.9 84.3% 1,013.4 11.43% 142 Sunways MHH plus 190 (190 Wp)* 2 20032005 2005 141.2 83.6% 1,005.0 12.16% 143 Solar-Fabrik SF 145A* 2 20032004 2005 118.8 83.4% 1,002.4 12.38% 144 Isofoton IS-170/24* 2 2007 2009 137.5 83.4% 1,002.4 12.39% 145 Isofoton I-110/24* 2 Until 2005 2006 119.4 83.3% 1,001.7 12.45% 146 Kyocera KC170GT-2* 2 Until 2006 2006 140.1 83.0% 997.1 12.85% 147 ASE (now with Schott Solar) ASE-300-DG-FT (300 W)* 2 19972006 2007 126.3 82.5% 992.0 13.29% 148 BP Solar BP 7185 S* 2 2005 145.2 81.6% 980.6 14.29% 149 Photowatt International PW 1650-175W 2005 (purchased) 2006 125.1 81.4% 978.1 14.51% 150 Evergreen Solar ES-180-RL* 2 20062008 2007 119.0 80.1% 962.6 15.86% 151 Sharp NT-R5E3E* 2 2003 2005 137.2 79.0% 949.2 17.04% * 1 when date of production was unavailable, the date when PHOTON Lab bought the module was used (if possible) * 2 no longer manufactured * 3 referred to as Pure Power SV-X-200 (LV) in previous issues * 4 manufactured by Alpexsolar; available through Sunpeak-Vertrieb Unternehmensgruppe Ratio-Data * 5 CEEG is the manufacturing company of license holder Sunergy * 6 previous model designation: CSG180S1-35/1589x807 * 7 previous model designation: CSG230M2-30/1640x992 * 8 previous model designation: ES-200-P60(230) * 9 previously manufactured by Solarfun Power Holdings Co. Ltd. * 10 previous model designation: Economy New ITS220ECU5 * 11 previous manufacturer designation: JZ Solar * 12 previous model designation: JZM 290M-72 * 13 company has changed its name to Inventec Energy * 14 manufactured by Ningbo Qixin Solar Electrical Appliance Co. Ltd. * 15 company has withdrawn from crystalline silicon PV manufacturing * 16 previous model designation: SW 210 poly 82 February 2013

Model:SolarPond 240HF-US Company takeovers, rebrandings and bankruptcies Our editorial office has become aware of a number of insolvencies affecting manufacturers represented in the PHOTON module yield test. Some of these manufacturers have already stopped production, and the survival of others is not guaranteed: Evergreen Solar Inc. August 2011, succeeded by Evergreen Solar () Co. Ltd. Fluitecnik SA January 2013 Siliken SL January 2013 Solar Modules Nederland BV May 2012 Sovello GmbH May 2012, production ceased in August 2012 The following companies will continue operating following an insolvency filing, have been taken over by other companies or were created by takeovers: Hanwha Q-Cells GmbH Insolvency of Q- Cells SE in April 2012, takeover by Hanwha Group with operations to continue as Hanwha Q-Cells GmbH Photowatt International SAS Insolvency in November 2011, takeover in March 2012 by EDF ENR Scheuten Solar Systems BV Insolvency in February 2012, takeover by Aikosolar, operations to continue as Scheuten Solar Solutions BV Solarwatt GmbH Self-administered insolvency in June 2012 (as Solarwatt AG), restructuring and operations to continue as Solarwatt GmbH Solibro GmbH Takeover by Hanergy Solon Energy GmbH Insolvency (as Solon SE) in December 2011, takeover by Microsol in March 2012, continuing operations as Solon Energy GmbH Sunways AG Takeover by LDK Solar in January 2012 js decisive criterion for the technical quality of a solar module, and yet technology is not the measure of all things. Long-term stability is equally significant for a product that needs to function well for at least 20 years. There is little to say about the SunPower modules in relation to this point, as they have, after all, only been on the test field for one year. A candidate like the Siliken SLK60P6L 230Wp has earned considerably more merit in this regard, having been installed on the test field since 2009 and having continued to perform well. And yet it is no longer being manufactured, just like modules made by many other candidates a fundamental problem in long-term tests of products that are seldom produced for more than 2 or 3 years. The results are still interesting, as the successor solar module series usually feature similar technology. And there is also hope that manufacturers that manage to make a good module have not forgotten how to do so when they start making their newest products. In the case of Siliken, there is, however, an additional problem: the Spanish manufacturer has been beset with financial problems insolvency proceedings started at the end of January. By this point at the latest, economic considerations start to emerge that no test field in the world can take into account. In the best case scenario, as occurred in this year s annual evaluation, the ratio of yield to surface can be determined this indicator can be used to determine the value of a solar module when the space available for a planned array is either very expensive or severely limited. All the same, a factor of 2.5 forms the midway point between the poorest value in this discipline 87.7 kwh per m2 in 2012 for the Nexpower s thin-film module NT-125AX and the module with the best result a SunPower module that achieves 225.3 to 228.7 kwh per m2. However, surface-related costs such as property, mounting system or cables would have to represent an exorbitant expense to exceed the difference in price between a thinfilm solar generator and SunPower modules. In comparison with other crystalline products offered at much cheaper prices, the situation looks quite different. And this would describe the last quality criteria, one that also cannot be determined on the test field: the price. To exemplify this, the two test winners in 2011 and 2012 need to be examined again. The difference in the performance ratio values determined for the SunPower SPR- 327NE-WHT-D and the REC230AE totals 4.4 percent. Assuming they feature comparably good properties when it comes to durability, the difference in price between these two modules should not be any larger than the difference in performance ratio although one might also add an extra bonus for the better surface yield. Further information Contacts page 142 February 2013 83

science & technology modules yield measurement test photon-pictures.com Non-interference: The modules on the test field are not cleared of snow and are not cleaned. Text: Jochen Siemer A module s fingerprint The large table showing an overview of the PHOTON module yield tests reveals a wealth of compactly presented knowledge about each and every test candidate. How should the figures and diagrams be interpreted? Highlights The PHOTON module yield measurement for 2012 involved comparing 151 types of modules with each other producing the world s largest and most detailed analysis of its type The table being presented over the following pages shows the yield as a numerical value, in addition to diagrams showing the characteristics of each test candidate A»fingerprint«provides insight into a module s reaction to diverse weather situations, also largely revealing why the module performs well, or poorly, in the yield comparison The most decisive factor in the PHOTON module test is, obviously, the yield obtained over the course of a year, measured in kilowatt hours per kilowatt of output (kwh/ kw). It is directly proportionate to the performance ratio, expressing the relationship between the power yield that is theoretically possible (factoring the efficiency in) and the power yield that was actually obtained. Given the irradiation actually available on the module test field in Aachen over the year 2012, a total of 1,202 kwh/kw would have been possible. A module with, for example, an efficiency of 20 percent would have equaled this sum, providing it consistently exhibited the aforementioned efficiency of 20 percent. In practice, and depending on the prevailing conditions (irradiation, temperature and light spectrum), the actual efficiency determined under standard test conditions (STC) usually remains unequaled, and is very rarely exceeded. This is why not one single test candidate reached 100 percent; however, this year s test winner, Sun- Power s SPR-327NE-WHT-D module, with its annual yield of 1,144.1 kwh/kw and its performance ratio of 95.2 percent, did in fact come quite close. The other end of the scale or number 151 in the rankings was bookended by the (no longer in production) NT-R5E3E from Sharp, with 949.2 kwh/kw and a performance ratio of 79 percent. 84 February 2013

February 2013 85

science & technology modules yield measurement test The difference between the two key indicators,»yield«and»performance ratio,«is found in their comparability: the yields from various modules only ever result in a statement applicable for one respective year at the same location (because 1,000 kwh/kw are, of course, a different result in a year with poor sunlight than in one with good sunlight), while the performance ratio values allow several successive years to be compared with each other by showing how the values relate to the irradiation available in each year. This, however, is also subject to limitations, because an annual irradiation total of, for example, 1,000 kwh per square meter, can accrue in different ways, which suits the diverse properties of the various modules differently, for better or for worse. A small table and a large table To allow relationships like this to be assessed better, the analysis of the PHOTON module yield measurement 2012 does not just include a basic ranking sorted according to performance ratio (see table, p. 80-82), but also a large table, beginning on p. 89, that presents the test outcomes in more detail. The large table also includes values for modules that have not been installed on the test field for a full year. The informative value of those results is, by nature, somewhat limited. Furthermore, specifying the performance ratio of these modules would not be particularly informative, which is why it does not appear. Only when the next analysis appears in our February edition in 2014 will it be known how the new modules on the test field actually performed. For each candidate including the new ones the large table includes two diagrams alongside the data on the module and measurements. The first, titled»weak light performance,«will already be familiar to PHOTON International readers from last year. This diagram illustrates the irradiation-dependent efficiency, or the module s response under varying irradiation conditions. It also shows the performance ratio at differing irradiation values at the module level. The measurements are taken in the solar simulator, and are therefore not based on the length of time the module has been installed in the outdoor test field. Those who compare the various curves with each other will soon notice a general trend: the higher the module s»starting point,«or its performance ratio at low irradiation, and the more uniform its progress, the better its placement in the rankings. Given the green light The diagram showing»homogeneity«is new this year. It breaks the module performance down into various combinations of solar irradiation and temperature. Viewed from bottom to top, the diagram shows the temperature in increments of five degrees (from -12.5 to +32.5 C), from left to right, the irradiation in 100 W increments (from 50 to 1,050 W per m2). Each of the 90 squares stands for a specific combination of irradiation and temperature. The bottommost square at the left indicates very cold and dull weather, with the one at the right, in contrast, also indicating very cold weather, but in this case, also extremely sunny conditions. This weather did not, however, materialize at the Aachen location last year, which is why the diagram showing all modules that completed a full year of testing feature five gray squares at the bottom right. Among the modules that were only added over the course of the year, the number and position of the gray field depends on the time at which they started the test: for a module added in April, for example, there are only 19 gray boxes, while one added in November features 58 gray boxes instead. 86 February 2013

The color of the squares, in turn, stands for the respective performance ratio attained by a module: red indicates a low value (60 percent), green represents a high value (110 percent). If a field is marked with a cross, then the performance ratio was off the scale. A red field with a cross therefore stands for less than 60 percent, while a green field with a cross indicates more than 110 percent. A performance ratio of more than 100 percent results when the efficiency determined under STC conditions is exceeded in certain irradiation conditions, for example in very cold, but very sunny, weather. The homogeneity diagrams were drawn up on the basis of values recorded on the PHOTON International module test field once every second for the whole year, this being the current/voltage (IV) characteristic curve for a module, which is the product of the current output, the irradiation and the temperature. To eliminate the effects of short-term fluctuations in weather (for example when cloud cover suddenly retreats), only those weather scenarios were assessed in which the relative standard deviation from temperature and irradiation over the preceding two minutes was less than 0.5 percent. This allowed a specific»fingerprint«for each and every module to be determined. photon-pictures.com (3) The weather at the Aachen location: the»fi ngerprint«shows the weighted distribution of the diverse combinations of temperature and irradiation. The scale ranges from -12.5 to +32.5 C, divided into fi vedegree increments going from bottom to top. From left to right, the scale ranges from 50 to 1,050 W per m², broken down in 100 W increments. The square at the bottom left therefore indicates a range of -12.5 to -7.5 C and 50 to 150 W per m², while the square at the top right indicates a range of 27.5 to 32.5 C and 950 to 1,050 W per m². One of the reasons SunPower s SPR-327NE-WHT-D module reaches a very high performance ratio of 95.2 percent is because its»fi ngerprint«exhibits many high values (marked in green). The module also copes with the Aachen location very well. A particularly high homogeneity indicator is, in contrast, no guarantee for good yields: the HG-190S/Ba from Himin Solar, for example, has a very high value of 12.1 because it operates uniformly under all weather conditions. However, despite a performance ratio of 91.4 percent, the module only comes in at 25 th place. The winner of the test, a SunPower module, has an indicator of only 8.0, and operates less uniformly but at a higher level. February 2013 87

science & technology modules yield measurement test The ideal test The weather in Aachen can be analyzed in the same way: if this involved breaking down the frequency of diverse combinations of irradiation and temperature into 90 squares, as was done for all the test modules, this would only show half the story. This is why the individual combinations are weighted according to irradiation: 50,000 seconds with 1,000 W per m2 are given the same weighting as 500,000 seconds with 100 W per m 2. Furthermore, in contrast to the module fingerprints, fluctuating weather conditions have not been eliminated; every single second of the year has therefore been incorporated into the assessment. This is also the reason why only four squares are shaded in gray for the fingerprint indicating the weather in Aachen in 2012 and not five, as was the case for the modules tested over this period. The position of the green squares in the weather fingerprint indicates which conditions are the most important for a solar module installed in Central Europe: temperatures between approximately 7.5 and 17.5 C at low irradiation of up to around 300 W per m 2 are of just as much significance as the range of temperatures between 12.5 and 22.5 C at irradiation levels between 850 and 1,050 W per m 2. This is a significant factor for the outcome of this year s yield comparison. The homogeneity diagram showing the three SunPower modules, which so clearly dominated the field, is perfectly compatible with the weather in Aachen. The homogeneity indicator for the SPR-327NE-WHT-D of 8.0 (in the»test data«column of the table) is, in contrast, far from a peak value: other modules operate significantly more uniformly and boast indicators of up to 12.1, which is, however, of little benefit when this occurs at an excessively low level. And yet a high level of homogeneity is a worthwhile target. If the PHOTON International test array was, for example, located far further north, where median irradiations frequently occur at very low temperatures, then the performance of the SunPower modules would be less impressive in the yield comparison, because other modules deliver considerably better results under those conditions. In the range of high temperatures of up to 32.5 degrees, in contrast, the SunPower test modules need not shy away from a comparison as their good temperature coefficients also gave reason to suspect. They would also be likely to perform very well in locations further south, at which considerably higher temperatures play a larger role for the overall yield. Arithmetically, at least, the following question can be answered: the yield data determined by PHOTON in Aachen, Germany, could, in combination with the weather fingerprint at a different location, allow a good estimate to be made about what yield a solar module is capable of producing there. However, this also involves two limitations: when temperatures and irradiation values that do not occur in Aachen at all are all too frequent at the hypothetical module location, the estimate will obviously become less reliable. And along with these two factors, there are other factors that also play a role, in particular the spectral distribution of the light, which is the result of the sun s position and the humidity in the air. The ideal module yield test, with results that can be applied to any location anywhere in the world, therefore remains not just for the technicians in the PHOTON laboratory a hard nut that has yet to be cracked. Further information Contacts page 142 88 February 2013

Detailed results of PHOTON s 2012 yield measurements Aide Solar AD195M5-Aa / Mono : 198.0 W Y/ : 1,065.0 kwh/kw (-6.91%)* 1 Y/module area: 164.7 kwh/m² PR: 88.6% : 4.6 Installed in: 9/2011 Aleo Solar Aleo S_18 225 / Multi Germany, Spain : 230.5 W Manufactured: 2005 Y/ : 1,099.3 kwh/kw (-3.92%)* 1 Y/module area: 154.5 kwh/m² PR: 91.5% : 9.3 Installed in: 4/2010 Alex Solar ALM-190D-24 / Mono : 187.8 W Manufactured: 2009 Area: 1.27 m² TC: -0.49 %/K Y/ : 1,065.8 kwh/kw (-6.84%)* 1 Y/module area: 157.6 kwh/m² PR: 88.7% : 10.6 Amerisolar AS-5M-190W / Mono : 195.0 W Y/ : 1,092.1 kwh/kw (-4.54%)* 1 Y/module area: 166.4 kwh/m² PR: 90.9% : 11.8 Amerisolar AS-6P30-230W / Multi : 236.8 W TC: -0.47 %/K Y/ : 1,089.2 kwh/kw (-4.80%)* 1 Y/module area: 157.3 kwh/m² PR: 90.6% : 10.1 Apollo Solar (ASEC) ASEC-235G6M / Multi Taiwan : 238.0 W Manufactured: 2011 Area: 1.61 m² TC: -0.43 %/K Y/ : 1,109.0 kwh/kw (-3.07%)* 1 Y/module area: 163.9 kwh/m² PR: 92.3% : 10.7 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 89

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements Axitec AC 236P/156-60S / Multi Germany : 232.9 W Manufactured: Through 2011 Area: 1.66 m² Y/ : 1,084.0 kwh/kw (-5.25%)* 1 Y/module area: 152.1 kwh/m² PR: 90.2% : 4.3 Axitec AC-250M/156-60S / Mono, EU : 248.9 W Manufactured: Y/ : 1,061.9 kwh/kw (-7.19%)* 1 Y/module area: 162.1 kwh/m² PR: 88.4% : 4.2 Bisol BMU-215-2/221 / Multi Slovenia : 229.1 W Manufactured: 2007 Y/ : 1,075.3 kwh/kw (-6.01%)* 1 Y/module area: 150.2 kwh/m² PR: 89.5% : 5.7 Installed in: 2/2010 Bisol BMU-215-2/233 / Multi Slovenia : 234.2 W Manufactured: 2009 Y/ : 1,086.0 kwh/kw (-5.08%)* 1 Y/module area: 156.0 kwh/m² PR: 90.4% : 7.7 Bosch Solar Bosch c-si M 60 230 / Mono Germany : 233.2 W Manufactured: 2009-2010 TC: -0.47 %/K Y/ : 1,076.5 kwh/kw (-5.91%)* 1 Y/module area: 153.0 kwh/m² PR: 89.6% : 7.0 BP Solar BP 3220 T / Multi : 232.5 W Manufactured: Through 2011 Area: 1.67 m² Y/ : 1,094.5 kwh/kw (-4.34%)* 1 Y/module area: 152.4 kwh/m² PR: 91.1% : 2.9 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 90 February 2013

Detailed results of PHOTON s 2012 yield measurements BP Solar BP 3280 T / Multi : 287.4 W Manufactured: Through 2011 Area: 1.98 m² TC: -0.39 %/K Y/ : 1,075.4 kwh/kw (-6.00%)* 1 Y/module area: 155.3 kwh/m² PR: 89.5% : 5.2 Installed in: 5/2011 BP Solar BP 7185 S* 2 / Mono Spain, India : 185.1 W* 3 Area: 1,25 m² TC: -0,46 %/K Y/ : 980.6 kwh/kw (-14.29%)* 1 Y/module area: 145.2 kwh/m² PR: 81.6% : 3.1 Installed in: 2005 BYD BYD 240P6-30 / Multi : 243.6 W TC: -0.42 %/K Y/ : 20.1 kwh/kw Installed in: 9/2012 Calrays CPM 250-A-96 / Mono : 244.0 W Area: 1.67 m² Y/ : 1,024.7 kwh/kw (-10.43%)* 1 Y/module area: 149.7 kwh/m² PR: 85.3% : 2.3 Canadian Solar CS6A-170P / Multi Y/ : 1,013.4 kwh/kw (-11.43%)* 1 : 174.4 W* 3 Y/module area: 135.9 kwh/m² Manufactured: 2007 (purchased) PR: 84.3% Area: 1.30 m² : 4.6 TC: -0.50 %/K Installed in: 2007 CEEG Solar SST 240-60M / Mono : 239.0 W Manufactured: 2005 Area: 1.62 m² Y/ : 1,085.6 kwh/kw (-5.12%)* 1 Y/module area: 160.2 kwh/m² PR: 90.3% : 8.4 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 91

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements CEEG Solar SST 265-72P / Multi : 281.0 W Manufactured: 2005 Area: 1.94 m² TC: -0.43 %/K Y/ : 1,084.1 kwh/kw (-5.24%)* 1 Y/module area: 157.0 kwh/m² PR: 90.2% : 11.2 CH Solar CH Solar 180 mono* 2 / Mono : 184.4 W Manufactured: Through 2010 Y/ : 1,090.2 kwh/kw (-4.71%)* 1 Y/module area: 157.1 kwh/m² PR: 90.7% : 8.2 Installed in: 4/2010 Chaori Solar Energy CRM240S156P-60 / Multi : 241.0 W Y/ : 19.7 kwh/kw Installed in: 5/2012 Chaori Solar Energy CRM245S156M-60 / Mono : 246.3 W Y/ : 20.0 kwh/kw Installed in: 5/2012 Sunergy CSUN240-60P / Multi : 243.7 W Manufactured: Area: 1.62 m² Y/ : 1,069.5 kwh/kw (-6.52%)* 1 Y/module area: 160.9 kwh/m² PR: 89.0% : 5.1 Sunergy CSUN250-60M / Mono : 248.4 W Area: 1.62 m² Y/ : 1,085.4 kwh/kw (-5.13%)* 1 Y/module area: 166.4 kwh/m² PR: 90.3% : 6.3 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 92 February 2013

Detailed results of PHOTON s 2012 yield measurements Sunergy CSUN260-60M / Mono : 254.0 W Area: 1.62 m² Y/ : 1,090.1 kwh/kw (-4.72%)* 1 Y/module area: 170.9 kwh/m² PR: 90.7% : 6.6 Chint Solar / Astronergy CHSM5612M (185 / Mono : 187.4 W Y/ : 1,097.1 kwh/kw (-4.11%)* 1 Y/module area: 160.6 kwh/m² PR: 91.3% : 10.8 Chint Solar / Astronergy CHSM6610P (230) / Multi : 234.2 W TC: -0.42 %/K Y/ : 1,067.7 kwh/kw (-6.68%)* 1 Y/module area: 152.5 kwh/m² PR: 88.8% : 5.7 CNPV Solar CNPV-185M / Mono : 193.8 W Manufactured: 2006 Y/ : 1,089.0 kwh/kw (-4.82%)* 1 Y/module area: 164.9 kwh/m² PR: 90.6% : 7.6 Installed in: 3/2010 CNPV Solar CNPV-190M / Mono : 197.4 W Manufactured: 2006 Y/ : 1,065.6 kwh/kw (-6.86%)* 1 Y/module area: 164.3 kwh/m² PR: 88.7% : 5.6 CNPV Solar CNPV-220P / Multi : 224.2 W Manufactured: 2006 Y/ : 1,090.7 kwh/kw (-4.66%)* 1 Y/module area: 150.0 kwh/m² PR: 90.8% : 7.9 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 93

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements CNPV Solar CNPV-240M / Mono : 249.7 W Manufactured: 2006 TC: -0.47 %/K Y/ : 1,071.2 kwh/kw (-6.37%)* 1 Y/module area: 163.1 kwh/m² PR: 89.1% : 10.3 CNPV Solar CNPV-240P / Multi : 243.1 W Manufactured: 2006 Y/ : 1,099.0 kwh/kw (-3.94%)* 1 Y/module area: 162.9 kwh/m² PR: 91.4% : 10.6 Conergy Conergy PowerPlus 220P / Multi Germany : 224.2 W Manufactured: 2009 TC: -0.43 %/K Y/ : 1,085.8 kwh/kw (-5.09%)* 1 Y/module area: 149.4 kwh/m² PR: 90.3% : 7.7 Installed in: 3/2010 Conergy PowerPlus 235P / Multi Germany : 240.0 W TC: -0.42 %/K Y/ : 1,101.8 kwh/kw (-3.70%)* 1 Y/module area: 162.2 kwh/m² PR: 91.7% : 8.9 CSG PV Tech CSG180S1-35/36* 5 / Mono : 184.1 W Manufactured: 2008 Y/ : 1,106.1 kwh/kw (-3.32%)* 1 Y/module area: 159.1 kwh/m² PR: 92.0% : 10.2 Installed in: 6/2010 CSG PV Tech CSG230M2-30* 6 / Multi : 228.3 W Manufactured: 2008 Y/ : 1,083.3 kwh/kw (-5.31%)* 1 Y/module area: 151.7 kwh/m² PR: 90.1% : 6.0 Installed in: 6/2010 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 94 February 2013

Detailed results of PHOTON s 2012 yield measurements Daqo New Energy DQ235PSCa / Multi : 238.0 W TC: -0.43 %/K Y/ : 1,080.5 kwh/kw (-5.56%)* 1 Y/module area: 157.8 kwh/m² PR: 89.9% : 7.1 Day4 Energy Day4 48MC 185 / Multi Canada : 186.5 W Manufactured: 2006 Area: 1.29 m² Y/ : 1,053.3 kwh/kw (-7.93%)* 1 Y/module area: 152.3 kwh/m² PR: 87.6% : 8.0 Eging Photovoltaic Technology EGM-185 / Mono Canada : 188.4 W Manufactured: 2010 TC: -0.48 %/K Y/ : 1,079.9 kwh/kw (-5.61%)* 1 Y/module area: 159.0 kwh/m² PR: 89.9% : 11.0 Emmvee Photovoltaics ES-230P60* 7 / Multi India : 234.0 W Manufactured: 2008-2011 Area: 1.69 m² TC: -0.43 %/K Y/ : 1,039.9 kwh/kw (-9.11%)* 1 Y/module area: 144.0 kwh/m² PR: 86.5% : 2.4 Installed in: 3/2010 ET Solar ET-M66250WW / Mono : 248.9 W TC: -0.43 %/K Y/ : 20.6 kwh/kw Installed in: 12/2012 ET Solar ET-P660240 / Multi : 236.1 W Y/ : 1,115.3 kwh/kw (-2.51%)* 1 Y/module area: 161.6 kwh/m² PR: 92.8% : 10.1 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 95

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements Eurener PEPV230 / Multi Spain : 235.3 W Area: 1.67 m² TC: -0.42 %/K Y/ : 1,090.8 kwh/kw (-4.66%)* 1 Y/module area: 153.7 kwh/m² PR: 90.8% : 8.9 Evergreen Solar EC-120* 2 / Ribbon USA : 121.0 W* 3 Manufactured: 2004-2006 Area: 1.03 m² TC: -0.51 %/K Y/ : 1,022.7 kwh/kw (-10.61%)* 1 Y/module area: 120.1 kwh/m² PR: 85.1% : 4.1 Installed in: 2006 Evergreen Solar ES-180-RL* 2 / Ribbon Germany : 185.4 W* 3 Manufactured: 2006-2008 Area: 1.50 m² Y/ : 962.6 kwh/kw (-15.86%)* 1 Y/module area: 119.0 kwh/m² PR: 80.1% : 2.4 Installed in: 2007 Evergreen Solar ES-A-210-fa2 / Ribbon USA : 210.0 W Manufactured: 2008 Area: 1.57 m² Y/ : 1,052.0 kwh/kw (-8.05%)* 1 Y/module area: 140.7 kwh/m² PR: 87.5% : 4.5 Installed in: 3/2011 Evergreen Solar ES-E-210-fc3 / Ribbon USA : 211.2 W Manufactured: Y/ : 1,058.8 kwh/kw (-7.45%)* 1 Y/module area: 136.3 kwh/m² PR: 88.1% : 5.7 Ferrania Solis AP 60-230 / Multi Italy : 228.8 W Manufactured: 2010 Area: 1.16 m² TC: -0.47 %/K Y/ : 1,067.3 kwh/kw (-6.71%)* 1 Y/module area: 210.5 kwh/m² PR: 88.8% : 2.1 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 96 February 2013

Detailed results of PHOTON s 2012 yield measurements First Solar FS-265 / CdTe USA : 65.4 W* 3 Manufactured: 2006-2011 Area: 0.72 m² TC: -* 8 %/K Y/ : 1,043.9 kwh/kw (-8.76%)* 1 Y/module area: 94.8 kwh/m² PR: 86.9% : 17.0 Installed in: 2007 Fluitecnik FTS-220 P / Multi Portugal : 231.8 W Area: 1.62 m² Y/ : 1,074.1 kwh/kw (-6.11%)* 1 Y/module area: 153.7 kwh/m² PR: 89.4% : 2.2 Installed in: 11/2011 Frankfurt Solar FS215W-POLY / Multi : 221.3 W Area: 1.61 m² Y/ : 1,075.7 kwh/kw (-5.98%)* 1 Y/module area: 147.9 kwh/m² PR: 89.5% : 9.9 Installed in: 2009 Galaxy Energy GS260m-96 / Mono Germany : 252.9 W Area: 1.67 m² Y/ : 1,085.0 kwh/kw (-5.17%)* 1 Y/module area: 164.3 kwh/m² PR: 90.3% : 11.0 Hanwha Q-Cells Q.PRO-G2 235 / Multi Poland : 236.9 W Area: 1.67 m² TC: -0.43 %/K Y/ : 19.2 kwh/kw Installed in: 11/2012 Hanwha SolarOne SF160 M5-24 (175 W)* 2 / Mono : 174.6 W* 3 TC: -0.48 %/K Y/ : 1,050.0 kwh/kw (-8.22%)* 1 Y/module area: 143.2 kwh/m² PR: 87.4% : 8.1 Installed in: 2007 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 97

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements Hanwha SolarOne SF160-24-1M175 (scac) / Mono : 183.0 W TC: -0.51 %/K Y/ : 1,075.6 kwh/kw (-5.99%)* 1 Y/module area: 153.8 kwh/m² PR: 89.5% : 10.9 Installed in: 2/2010 Hanwha SolarOne SF160-24-1M180 / Mono : 178.6 W Y/ : 1,066.4 kwh/kw (-6.79%)* 1 Y/module area: 148.8 kwh/m² PR: 88.7% : 11.0 Hareon Solar HR-230P-18/Bb / Multi : 230.6 W Area: 1.62 m² TC: -0.47 %/K Y/ : 1,096.9 kwh/kw (-4.13%)* 1 Y/module area: 156.1 kwh/m² PR: 91.3% : 4.3 Helios Technology H3A230P / Multi EU : 232.2 W Y/ : 1,063.5 kwh/kw (-7.04%)* 1 Y/module area: 151.5 kwh/m² PR: 88.5% : 4.0 Hengdian Group Dmegc DM190-M125-72 / Mono : 196.6 W Y/ : 20.2 kwh/kw Installed in: 4/2012 Himin Solar HG-190S/Ba / Mono : 194.5 W TC: -0.42 %/K Y/ : 1,098.9 kwh/kw (-3.95%)* 1 Y/module area: 167.0 kwh/m² PR: 91.4% : 12.1 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 98 February 2013

Detailed results of PHOTON s 2012 yield measurements Huanghe Photovoltaic HH190(36M / Mono : 190.9 W TC: -0.47 %/K Y/ : 1,104.5 kwh/kw (-3.47%)* 1 Y/module area: 164.7 kwh/m² PR: 91.9% : 10.1 Huanghe Photovoltaic HH230(30)P / Multi : 231.7 W TC: -0.43 %/K Y/ : 1,112.1 kwh/kw (-2.80%)* 1 Y/module area: 157.1 kwh/m² PR: 92.5% : 4.6 IBC Solar IBC MonoSol 240 TT / Mono Germany : 246.0 W Manufactured: Through 2011 Area: 1.66 m² Y/ : 1,036.9 kwh/kw (-9.37%)* 1 Y/module area: 153.7 kwh/m² PR: 86.3% : 5.4 IBC Solar IBC MonoSol 240 TT / Mono Germany : 245.2 W Manufactured: Through 2011 Area: 1.66 m² TC: -0.51 %/K Y/ : 18.7 kwh/kw Installed in: 4/2012 Inventec Energy KSS-6P6A-230 / Multi Taiwan : 234.1 W Manufactured: 2010 TC: -0.49 %/K Y/ : 1,096.7 kwh/kw (-4.14%)* 1 Y/module area: 156.5 kwh/m² PR: 91.3% : 5.5 Isofoton I-110/24* 2 / Mono Spain : 102.5 W* 3 Manufactured: Through 2005 Area: 0.86 m² TC: -0.48 %/K Y/ : 1,001.7 kwh/kw (-12.45%)* 1 Y/module area: 119.4 kwh/m² PR: 83.3% : 3.5 Installed in: 2006 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 99

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements Isofoton IS-170/24* 2 / Mono Spain : 172.8 W Manufactured: 2007 Area: 1.26 m² TC: -0.42 %/K Y/ : 1,002.4 kwh/kw (-12.39%)* 1 Y/module area: 137.5 kwh/m² PR: 83.4% : 4.8 Installed in: 2009 Isofoton ISF-255 / Mono Spain : 255.0 W Manufactured: 2012 Area: 1.66 m² TC: -0.42 %/K Y/ : 18.2 kwh/kw Installed in: 4/2012 ITS Innotech Solar EcoPlus ITS220ECU5* 10 / Multi Sweden : 242.7 W Manufactured: 2011 Area: 1.65 m² TC: -0.39 %/K Y/ : 1,092.2 kwh/kw (-4.53%)* 1 Y/module area: 160.6 kwh/m² PR: 90.9% : 4.9 JCS Solar JCSM290M-72* 12 / Mono : 296.9 W Area: 1.94 m² TC: -0.43 %/K Y/ : 1,085.2 kwh/kw (-5.15%)* 1 Y/module area: 166.1 kwh/m² PR: 90.3% : 8.4 Jetion Solar JT230(30)P1655x992 / Mono : 232.4 W Manufactured: 2005 TC: -0.39 %/K Y/ : 1,066.0 kwh/kw (-6.83%)* 1 Y/module area: 151.1 kwh/m² PR: 88.7% : 3.9 Jinko Solar JKM190M-72 / Mono : 191.1 W Manufactured: 2010 Y/ : 1,112.2 kwh/kw (-2.79%)* 1 Y/module area: 166.1 kwh/m² PR: 92.5% : 11.3 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 100 February 2013

Detailed results of PHOTON s 2012 yield measurements Jinko Solar JKM235P-60 / Multi : 231.4 W Y/ : 1,111.4 kwh/kw (-2.86%)* 1 Y/module area: 156.8 kwh/m² PR: 92.5% : 8.6 Jinko Solar JKM255M-96 / Mono : 259.7 W Area: 1.70 m² Y/ : 1,074.3 kwh/kw (-6.10%)* 1 Y/module area: 164.1 kwh/m² PR: 89.4% : 4.9 Jinko Solar JKM275P / Multi : 275.5 W Area: 1.94 m² TC: -0.48 %/K Y/ : 19.6 kwh/kw Installed in: 4/2012 Kenmec Mechanical TKSA-23001 / Multi Taiwan : 235.0 W Manufactured: TC: -0.47 %/K Y/ : 1,074.3 kwh/kw (-6.10%)* 1 Y/module area: 153.9 kwh/m² PR: 89.4% : 4.1 Kioto Photovoltaics KPV 210 PE* 2 / Multi Austria : 206.6 W Manufactured: 2008-2010 Area: 1.49 m² TC: -0.47 %/K Y/ : 1,095.9 kwh/kw (-4.21%)* 1 Y/module area: 152.0 kwh/m² PR: 91.2% : 10.3 Installed in: 2009 Kyocera KC170GT-2* 2 / Multi Japan : 178.4 W* 3 Manufactured: Through 2006 Area: 1.27 m² Y/ : 997.1 kwh/kw (-12.85%)* 1 Y/module area: 140.1 kwh/m² PR: 83.0% : 6.6 Installed in: 2006 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 101

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements Kyocera KD210GH-2PU / Multi EU : 212.1 W Manufactured: 2009 Area: 1.48 m² TC: -0.43 %/K Y/ : 1,048.5 kwh/kw (-8.35%)* 1 Y/module area: 149.3 kwh/m² PR: 87.2% : 6.2 Latitude Solar Latitude P6-60/6 (235 / Multi Sweden : 240.5 W Area: 1.62 m² Y/ : 0.0 kwh/kw * 15 no grade Latitude Solar Latitude P6-60/6 (235 / Multi Sweden : 241.2 W Area: 1.62 m² TC: -0.42 %/K Y/ : 968.4 kwh/kw (-15.36%)* 1 Y/module area: 144.2 kwh/m² PR: 80.6% : 2.2 no grade Lightway Green New Energy LW235(29P1650*990 / Multi : 235.7 W TC: -0.43 %/K Y/ : 19.2 kwh/kw Installed in: 4/2012 Lilie Energie Lilie SPL 185 / Mono : 185.3 W TC: -0.49 %/K Y/ : 1,072.8 kwh/kw (-6.23%)* 1 Y/module area: 155.3 kwh/m² PR: 89.3% : 10.4 Lilie Energie Lilie SPL 185-I / Mono : 187.1 W TC: -0.49 %/K Y/ : 1,061.6 kwh/kw (-7.21%)* 1 Y/module area: 155.2 kwh/m² PR: 88.3% : 7.3 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 102 February 2013

Detailed results of PHOTON s 2012 yield measurements Linsun Power SK60P6 / Multi : 228.3 W Area: 1.62 m² Y/ : 1,105.6 kwh/kw (-3.36%)* 1 Y/module area: 155.8 kwh/m² PR: 92.0% : 8.7 Linuo Group LN180(36M-185 / Mono : 191.8 W Manufactured: 2003 TC: -0.47 %/K Y/ : 1,085.2 kwh/kw (-5.15%)* 1 Y/module area: 162.6 kwh/m² PR: 90.3% : 6.1 Linuo Group LN240(30)P-225 / Multi : 236.5 W Manufactured: 2003 TC: -0.47 %/K Y/ : 1,079.0 kwh/kw (-5.69%)* 1 Y/module area: 155.6 kwh/m² PR: 89.8% : 5.5 Luxor Solar LX-185M/125-72+ / Mono : 188.4 W Manufactured: 2007 Y/ : 1,062.7 kwh/kw (-7.12%)* 1 Y/module area: 156.4 kwh/m² PR: 88.4% : 4.5 Mage Solar Mage Powertec Plus 225/6PJ / Multi : 232.0 W Manufactured: Through 2011 TC: -0.43 %/K Y/ : 1,084.4 kwh/kw (-5.22%)* 1 Y/module area: 153.4 kwh/m² PR: 90.2% : 10.9 Installed in: 2009 Mage Solar Mage Powertec Plus 230/6PH-US / Multi USA : 231.8 W Area: 1.62 m² TC: -0.47 %/K Y/ : 1,081.5 kwh/kw (-5.47%)* 1 Y/module area: 154.7 kwh/m² PR: 90.0% : 4.5 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 103

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements Mage Solar Mage Powertec Plus 230/6PO / Multi : 229.9 W Y/ : 851.4 kwh/kw (-25.58%)* 1 Y/module area: 119.4 kwh/m² PR: 70.8% : 6.4 no grade Mage Solar Mage Powertec Plus 230/6PO / Multi : 229.9 W TC: -0.42 %/K Y/ : 1,061.6 kwh/kw (-7.21%)* 1 Y/module area: 148.8 kwh/m² PR: 88.3% : 7.9 no grade Magi Solar MGSM-240D-60 / Mono : 246.1 W Y/ : 1,073.1 kwh/kw (-6.20%)* 1 Y/module area: 162.0 kwh/m² PR: 89.3% : 9.9 Magi Solar MGSM-295-D / Mono : 294.0 W Manufactured: 2011 Area: 1.94 m² Y/ : 1,079.9 kwh/kw (-5.61%)* 1 Y/module area: 163.7 kwh/m² PR: 89.9% : 4.7 M-Prime M 235P / Multi Portugal : 240.7 W Area: 1.61 m² TC: -0.49 %/K Y/ : 1,087.4 kwh/kw (-4.95%)* 1 Y/module area: 162.6 kwh/m² PR: 90.5% : 4.6 Nelumbo NEI 230-3VA / Multi Czech Republic : 228.5 W Y/ : 1,103.7 kwh/kw (-3.53%)* 1 Y/module area: 153.8 kwh/m² PR: 91.8% : 7.7 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 104 February 2013

Detailed results of PHOTON s 2012 yield measurements Nesl Solartech DJ-235P / Multi : 237.7 W Y/ : 20.3 kwh/kw Installed in: 5/2012 NexPower Technology NT-125AX* 2 / μc-si / a-si Taiwan : 125.4 W Manufactured: 2009-2010 Area: 1.58 m² TC: -0.36 %/K Y/ : 1,105.9 kwh/kw (-3.34%)* 1 Y/module area: 87.7 kwh/m² PR: 92.0% : 12.1 Installed in: 11/2010 Perfectenergy PEM-180/185-72M-SCC / Mono : 191.3 W Manufactured: 2008 Y/ : 1,050.8 kwh/kw (-8.15%)* 1 Y/module area: 157.0 kwh/m² PR: 87.4% : 4.4 Installed in: 6/2010 Phono Solar Technology PS190M-24/F / Mono : 192.0 W TC: -0.43 %/K Y/ : 20.6 kwh/kw Installed in: 5/2012 Phono Solar Technology PS230P-20/U / Multi : 235.8 W TC: -0.40 %/K Y/ : 20.6 kwh/kw Installed in: 5/2012 Photowatt International PW 1650-175W / Multi Y/ : 978.1 kwh/kw France (-14.51%)* 1 : 171.4 W* 3 Y/module area: 125.1 kwh/m² Manufactured: 2005 (purchased) PR: 81.4% Area: 1.34 m² : 3.1 Installed in: 2006 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 105

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements PV Power Technologies PVQ3 220 / Multi India : 223.6 W Manufactured: 2008 Area: 1.62 m² TC: -0.42 %/K Y/ : 1,087.0 kwh/kw (-4.99%)* 1 Y/module area: 150.0 kwh/m² PR: 90.4% : 8.6 Installed in: 2009 Qixin Solar Electrical Appliance SL230CE-30P / Multi : 239.6 W Area: 1.62 m² Y/ : 21.1 kwh/kw Installed in: 4/2012 Qixin Solar Electrical Appliance SL250CE-48M / Mono : 255.9 W Area: 1.69 m² Y/ : 20.5 kwh/kw Installed in: 4/2012 REC Premium 210 / Multi Sweden : 212.2 W Manufactured: Through 2008 Area: 1.65 m² Y/ : 1,098.0 kwh/kw (-4.03%)* 1 Y/module area: 141.2 kwh/m² PR: 91.4% : 5.5 REC REC230AE* 2 / Multi Sweden : 228.6 W Manufactured: 2007/2010 Area: 1.65 m² Y/ : 1,097.9 kwh/kw (-4.04%)* 1 Y/module area: 152.1 kwh/m² PR: 91.4% : 3.8 Installed in: 2/2010 REC REC230PE / Multi Singapur : 237.6 W Manufactured: 2010 Area: 1.65 m² Y/ : 1,091.0 kwh/kw (-4.64%)* 1 Y/module area: 157.1 kwh/m² PR: 90.8% : 7.6 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 106 February 2013

Detailed results of PHOTON s 2012 yield measurements Renesola JC245M-24/Bb / Multi : 247.7 W TC: -0.42 %/K Y/ : 19.8 kwh/kw Installed in: 10/2012 Renesola JC245M-24/Bbv / quasi-mono : 246.6 W Y/ : 19.9 kwh/kw Installed in: 10/2012 TC: -0.43 %/K Renesola JC250S-24/Bb / Mono : 246.5 W Y/ : 20.3 kwh/kw Installed in: 6/2012 Risen Energy SYP185S-M / Mono : 191.7 W TC: -0.48 %/K Y/ : 1,087.3 kwh/kw (-4.97%)* 1 Y/module area: 162.8 kwh/m² PR: 90.5% : 7.6 Risen Energy SYP190S-M / Mono : 188.9 W Y/ : 18.9 kwh/kw Installed in: 10/2012 Risen Energy SYP250M / Mono : 243,7 W Y/ : 20.1 kwh/kw Installed in: 7/2012 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 107

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements Runda PV RS230P-60 / Multi : 237.8 W TC: -0.48 %/K Y/ : 1,073.8 kwh/kw (-6.15%)* 1 Y/module area: 155.7 kwh/m² PR: 89.3% : 2.4 Scheuten Solar Multisol P6-60 / Multi Germany : 238.1 W Area: 1.66 m² TC: -0.40 %/K Y/ : 1,069.7 kwh/kw (-6.50%)* 1 Y/module area: 153.4 kwh/m² PR: 89.0% : 8.5 Installed in: 6/2011 Schott Solar ASE-300-DG-FT (300 W)* 2 / Ribbon USA : 308.1 W* 3 Manufactured: 1997-2006 Area: 2.42 m² TC: -0.40 %/K Y/ : 992.0 kwh/kw (-13.29%)* 1 Y/module area: 126.3 kwh/m² PR: 82.5% : 3.6 Installed in: 2007 Schott Solar SCHOTT PERFORM Poly 235 / Multi Czech Republic : 239.0 W Manufactured: Since 2011 Area: 1.67 m² Y/ : 1,103.4 kwh/kw (-3.56%)* 1 Y/module area: 157.9 kwh/m² PR: 91.8% : 11.6 Schott Solar SCHOTT POLY TM 220 / Multi Czech Republic : 224.7 W Manufactured: 2008-2009 Area: 1.67 m² Y/ : 1,038.1 kwh/kw (-9.27%)* 1 Y/module area: 139.7 kwh/m² PR: 86.4% : 4.5 S-Energy SM-220PA8 / Multi South Korea : 224.4 W Area: 1.59 m² Y/ : 1,076.9 kwh/kw (-5.87%)* 1 Y/module area: 152.0 kwh/m² PR: 89.6% : 4.4 Installed in: 2009 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 108 February 2013

Detailed results of PHOTON s 2012 yield measurements Seraphim Solar System SRP-220-6PB / Multi : 226.1 W TC: -0.49 %/K Y/ : 1,125.5 kwh/kw (-1.63%)* 1 Y/module area: 156.1 kwh/m² PR: 93.6% : 10.9 Installed in: 10/2011 Sharp NT-R5E3E* 2 / Mono Japan : 187.9 W* 3 Manufactured: 2003 Area: 1.30 m² Y/ : 949.2 kwh/kw (-17.04%)* 1 Y/module area: 137.2 kwh/m² PR: 79.0% : 2.8 Installed in: 2005 Sharp NU-185E1 / Mono Great Britain : 186.1 W Manufactured: 2005 Area: 1.32 m² Y/ : 1,052.1 kwh/kw (-8.04%)* 1 Y/module area: 148.3 kwh/m² PR: 87.5% : 7.3 Installed in: 3/2011 Shell Solar Shell PowerMax Eclipse 80-C* 2 / CIS USA : 90.8 W* 3 Manufactured: 2005-2006 Area: 0.86 m² Y/ : 1,035.5 kwh/kw (-9.49%)* 1 Y/module area: 109.3 kwh/m² PR: 86.2% : 4.7 Installed in: 2007 no grade Shell Solar (now with Solarworld) Shell SQ 150-C* 2 / Mono Portugal : 155.8 W* 3 Manufactured: Through 2005 Area: 1.32 m² TC: -0.50 %/K Y/ : 1,054.9 kwh/kw (-7.79%)* 1 Y/module area: 124.5 kwh/m² PR: 87.8% : 5.6 Installed in: 2006 Shinsung SS-BM260C / Mono South Korea : 258.8 W Area: 1.60 m² TC: -0.43 %/K Y/ : 18.3 kwh/kw Installed in: 4/2012 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 109

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements Siliken SLK60P6L 230Wp / Multi Spain : 229.7 W Area: 1.62 m² TC: -0.43 %/K Y/ : 1,114.2 kwh/kw (-2.61%)* 1 Y/module area: 158.0 kwh/m² PR: 92.7% : 7.5 Installed in: 2009 Solar Modules Nederland TC245-MO / Mono Netherlands : 246.7 W Manufactured: 2010-2011 Y/ : 1,096.7 kwh/kw (-4.14%)* 1 Y/module area: 165.0 kwh/m² PR: 91.3% : 10.1 Solar Best Energy Tech. ZSB M190 / Mono : 186.1 W TC: -0.47 %/K Y/ : 1,074.6 kwh/kw (-6.08%)* 1 Y/module area: 156.2 kwh/m² PR: 89.4% : 9.4 Installed in: 12/2011 Solar-Fabrik Premium L poly (225 / Multi Germany : 223.6 W Area: 1.66 m² TC: -0.39 %/K Y/ : 1,054.3 kwh/kw (-7.85%)* 1 Y/module area: 142.0 kwh/m² PR: 87.7% : 4.3 Solar-Fabrik SF 130/4-130* 2 / Mono Germany : 130.7 W Manufactured: 2006-2010 Area: 1.00 m² TC: -0.49 %/K Y/ : 1,023.7 kwh/kw (-10.53%)* 1 Y/module area: 133.8 kwh/m² PR: 85.2% : 4.6 Installed in: 3/2010 Solar-Fabrik SF 145A* 2 / Ribbon Germany : 145.8 W* 3 Manufactured: 2003-2004 Area: 1.23 m² TC: -0.42 %/K Y/ : 1,002.4 kwh/kw (-12.38%)* 1 Y/module area: 118.8 kwh/m² PR: 83.4% : 2.8 Installed in: 2005 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 110 February 2013

Detailed results of PHOTON s 2012 yield measurements Solargate Technology SG-2350 / Multi Taiwan : 246.3 W Area: 1.62 m² TC: -0.47 %/K Y/ : 1,071.9 kwh/kw (-6.31%)* 1 Y/module area: 163.0 kwh/m² PR: 89.2% : 4.7 Solaria Energía y Medio Ambiente S6P2G225 / Multi Spain : 232.7 W Manufactured: 2010 TC: -0.47 %/K Y/ : 1,083.8 kwh/kw (-5.27%)* 1 Y/module area: 154.8 kwh/m² PR: 90.2% : 7.6 Installed in: 5/2011 Solarwatt M220-60 GET AK (230) / Mono Germany : 231.5 W Manufactured: 2005 Area: 1.66 m² TC: -0.51 %/K Y/ : 1,075.0 kwh/kw (-6.04%)* 1 Y/module area: 149.9 kwh/m² PR: 89.4% : 5.0 SolarWorld Sunmodule Plus SW 210 poly* 17 / Multi Germany : 212.2 W* 3 Manufactured: 2004 Area: 1.68 m² Y/ : 1,072.5 kwh/kw (-6.26%)* 1 Y/module area: 135.5 kwh/m² PR: 89.2% : 6.6 Installed in: 2006 SolarWorld Sunmodule Plus SW 225 mono / Mono USA : 233.4 W Manufactured: 2009 Area: 1.67 m² Y/ : 1,100.4 kwh/kw (-3.82%)* 1 Y/module area: 153.8 kwh/m² PR: 91.6% : 10.2 Installed in: 3/2010 SolarWorld Sunmodule Plus SW 225 poly / Multi Germany : 228.6 W Manufactured: 2004-2011 Area: 1.68 m² TC: -0.43 %/K Y/ : 1,084.0 kwh/kw (-5.25%)* 1 Y/module area: 147.5 kwh/m² PR: 90.2% : 7.8 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 111

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements SolarWorld Sunmodule Plus SW 245 poly / Multi Germany : 245.3 W Area: 1.67 m² Y/ : 1,092.1 kwh/kw (-4.54%)* 1 Y/module area: 160.4 kwh/m² PR: 90.9% : 10.9 Solibro SL1-95* 19 / CIGS Germany : 97.3 W Manufactured: 2008 Area: 0.75 m² TC: -* 8 %/K Y/ : 1,085.3 kwh/kw (-5.14%)* 1 Y/module area: 140.8 kwh/m² PR: 90.3% : 14.4 no grade Solon SOLON Blue 230/07(225 / Multi Germany : 226.9 W Manufactured: 2008 TC: -0.43 %/K Y/ : 1,094.3 kwh/kw (-4.36%)* 1 Y/module area: 151.4 kwh/m² PR: 91.1% : 6.1 Sonalis / Qixin Solar Electrical Appliance SL-180CE-36M / Mono : 185.1 W Y/ : 1,070.0 kwh/kw (-6.48%)* 1 Y/module area: 154.7 kwh/m² PR: 89.0% : 6.5 Installed in: 3/2010 Sonalis / Qixin Solar Electrical Appliance SL-190CE-36M* 21 / Mono : 188.9 W Y/ : 1,047.8 kwh/kw (-8.42%)* 1 Y/module area: 154.7 kwh/m² PR: 87.2% : 5.6 Sonalis / Qixin Solar Electrical Appliance SL-190CE-36M* 21 / Mono : 192.2 W Y/ : 19.1 kwh/kw Installed in: 10/2012 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 112 February 2013

Detailed results of PHOTON s 2012 yield measurements Sonalis / Qixin Solar Electrical Appliance SL190TU-36M / Mono : 196.6 W Y/ : 18.4 kwh/kw Installed in: 8/2012 Sovello SV-X-200-fa1* 22 / Ribbon Germany : 205.0 W Manufactured: 2009-2011 Area: 1.58 m² Y/ : 1,019.8 kwh/kw (-10.87%)* 1 Y/module area: 132.3 kwh/m² PR: 84.9% : 3.4 Installed in: 1/2011 Sovello SV-X-205-fa1 / Ribbon Germany : 206.1 W Area: 1.57 m² Y/ : 1,030.7 kwh/kw (-9.91%)* 1 Y/module area: 135.3 kwh/m² PR: 85.8% : 3.0 Sun Earth Solar Power Sun Earth TDB125x125-72-P Y/ : 1,067.8 kwh/kw 160W* 2 / Mono (-6.67%)* 1 Y/module area: 134.8 kwh/m² : 161.6 W PR: 88.8% : 7.0 Sun Earth Solar Power Sun Earth TDB125x125-72-P Y/ : 1,083.0 kwh/kw 180W* 2 / Mono (-5.34%)* 1 Y/module area: 151.6 kwh/m² : 179.2 W PR: 90.1% Manufactured: Through 2010 : 6.0 Sunage SAM 96/5 / Mono Switzerland : 256.6 W Area: 1.78 m² TC: -0.48 %/K Y/ : 1,068.8 kwh/kw (-6.58%)* 1 Y/module area: 154.1 kwh/m² PR: 88.9% : 5.0 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 113

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements Sunerg Solar XP 60/156-230 / Multi Italy : 226.0 W TC: -0.49 %/K Y/ : 1,115.0 kwh/kw (-2.55%)* 1 Y/module area: 154.6 kwh/m² PR: 92.8% : 10.5 Sunflower Light Energy Science & Technology SF125x125-72-M(180) / Mono : 176.6 W TC: -0.47 %/K Y/ : 1,087.3 kwh/kw (-4.96%)* 1 Y/module area: 150.0 kwh/m² PR: 90.5% : 9.7 Sungen SGM-195D / Mono : 196.5 W Y/ : 20.4 kwh/kw Installed in: 5/2012 Sungen SGM-235P / Multi : 235.4 W Y/ : 20.1 kwh/kw Installed in: 5/2012 Sunlink PV SL220-20M230 / Mono : 237.9 W Area: 1.65 m² TC: -0.48 %/K Y/ : 1,090.6 kwh/kw (-4.68%)* 1 Y/module area: 157.2 kwh/m² PR: 90.7% : 10.0 Sunpeak / Alpex Solar ALP235W* 2 / Mono India : 233.0 W Manufactured: 2009-2010 Area: 1.61 m² Y/ : 1,066.3 kwh/kw (-6.80%)* 1 Y/module area: 154.3 kwh/m² PR: 88.7% : 4.0 Installed in: 3/2010 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 114 February 2013

Detailed results of PHOTON s 2012 yield measurements Sunpower SPR-245NE-WHT-D / Mono : 245.2 W Area: 1.24 m² TC: -* 8 %/K Y/ : 1,139.4 kwh/kw (-0.42%)* 1 Y/module area: 225.3 kwh/m² PR: 94.8% : 6.2 Sunpower SPR-320NE-WHT-D / Mono : 325.5 W TC: -* 8 %/K Y/ : 1,140.1 kwh/kw (-0.35%)* 1 Y/module area: 227.6 kwh/m² PR: 94.9% : 5.6 Sunpower SPR-327NE-WHT-D / Mono : 325.8 W TC: -* 8 %/K Y/ : 1,144.1 kwh/kw (--) Y/module area: 228.7 kwh/m² PR: 95.2% : 8.0 Sunrise Solartech SRM 180D72-GE / Mono : 181.5 W Y/ : 1,072.9 kwh/kw (-6.22%)* 1 Y/module area: 152.2 kwh/m² PR: 89.3% : 11.2 Installed in: 2009 Suntech Power STP190-18/Ub* 2 / Multi : 182.9 W Manufactured: 2005 Area: 1.47 m² Y/ : 1,034.8 kwh/kw (-9.55%)* 1 Y/module area: 128.8 kwh/m² PR: 86.1% : 11.3 Suntech Power STP205-18/Ud / Multi : 213.8 W Manufactured: Area: 1.47 m² Y/ : 1,073.7 kwh/kw (-6.15%)* 1 Y/module area: 156.2 kwh/m² PR: 89.3% : 6.5 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 115

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements Sunways MHH plus 190 (190 Wp)* 2 / Multi Germany : 199.5 W* 3 Manufactured: 2003-2005 Area: 1.42 m² Y/ : 1,005.0 kwh/kw (-12.16%)* 1 Y/module area: 141.2 kwh/m² PR: 83.6% : 5.3 Installed in: 2005 SWAT-International SWAT-240-PS / Multi : 245.1 W Y/ : 1,086.2 kwh/kw (-5.06%)* 1 Y/module area: 162.3 kwh/m² PR: 90.4% : 10.3 Installed in: 5/2011 Talesun Solar TP572M-195 / Mono : 196.1 W Manufactured: 2011 Y/ : 1,075.1 kwh/kw (-6.03%)* 1 Y/module area: 164.7 kwh/m² PR: 89.5% : 10.5 Topray Solar TPS105T-180W / Mono : 184.8 W Manufactured: Y/ : 1,075.6 kwh/kw (-5.99%)* 1 Y/module area: 155.3 kwh/m² PR: 89.5% : 4.5 Installed in: 5/2011 Topsolar Green Energy TSM72-125M-190W / Mono : 185.9 W Y/ : 1,071.6 kwh/kw (-6.33%)* 1 Y/module area: 155.6 kwh/m² PR: 89.2% : 3.3 Topsolar Green Energy TSM96-125M-250W / Mono : 246.6 W Area: 1.70 m² Y/ : 18.6 kwh/kw Installed in: 3/2012 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 116 February 2013

Detailed results of PHOTON s 2012 yield measurements Trina Solar TSM-180DC01 / Mono : 176.2 W Manufactured: 2007 Y/ : 1,083.2 kwh/kw (-5.33%)* 1 Y/module area: 149.1 kwh/m² PR: 90.1% : 9.7 Installed in: 2009 Trina Solar TSM-225PC05 / Multi : 233.0 W TC: -0.49 %/K Y/ : 1,083.1 kwh/kw (-5.33%)* 1 Y/module area: 153.9 kwh/m² PR: 90.1% : 11.0 Installed in: 2/2010 Trina Solar TSM-250PC05 / Multi : 249.3 W TC: -0.41 %/K Y/ : 18.9 kwh/kw Installed in: 6/2012 Upsolar UP-M180M / Mono : 181.5 W Manufactured: 2010-2011 Y/ : 1,087.9 kwh/kw (-4.91%)* 1 Y/module area: 154.3 kwh/m² PR: 90.5% : 10.9 Installed in: 3/2010 Upsolar UP-M185M / Mono : 189.2 W Manufactured: 2010-2011 TC: -0.43 %/K Y/ : 1,071.3 kwh/kw (-6.37%)* 1 Y/module area: 158.3 kwh/m² PR: 89.1% : 11.1 Upsolar UP-M220P / Multi : 219.2 W Manufactured: 2010-2011 TC: -0.49 %/K Y/ : 1,099.3 kwh/kw (-3.92%)* 1 Y/module area: 147.8 kwh/m² PR: 91.5% : 4.9 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 117

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements V-Energy VE260PV / Multi Italy : 234.6 W Area: 1.66 m² Y/ : 1,097.1 kwh/kw (-4.11%)* 1 Y/module area: 155.1 kwh/m² PR: 91.3% : 3.8 Vikram Solar ELDORA 220 / Multi : 233.3 W Area: 1.61 m² TC: -0.50 %/K Y/ : 1,082.2 kwh/kw (-5.41%)* 1 Y/module area: 156.8 kwh/m² PR: 90.0% : 4.8 Win Win Precision Winaico WSP-230P6 / Multi Taiwan : 234.4 W Manufactured: 2009 Area: 1.66 m² Y/ : 1,057.9 kwh/kw (-7.53%)* 1 Y/module area: 149.4 kwh/m² PR: 88.0% : 3.2 Installed in: 2009 Win Win Precision Winaico WSP-235P6 / Multi Taiwan : 240.1 W Manufactured: Area: 1.66 m² Y/ : 1,091.7 kwh/kw (-4.58%)* 1 Y/module area: 157.9 kwh/m² PR: 90.8% : 9.1 Installed in: 5/2010 Win Win Precision Winaico WSP-240P6 / Multi : 245.2 W Area: 1.66 m² TC: -0.42 %/K Y/ : 19.3 kwh/kw Installed in: 4/2012 Win Win Precision Winaico WSP-250P6 / Multi : 249.3 W Area: 1.66 m² TC: -0,45 %/K Y/ : 1,097.6 kwh/kw (-4.06%)* 1 Y/module area: 164.9 kwh/m² PR: 91.3% : 4.6 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is 118 February 2013

Detailed results of PHOTON s 2012 yield measurements Yingli Green Energy YL210P-29b / Multi : 214.3 W Manufactured: 2009 Y/ : 1,072.8 kwh/kw (-6.23%)* 1 Y/module area: 141.0 kwh/m² PR: 89.3% : 9.3 Yingli Green Energy YL240P-29b / Multi : 246.6 W Y/ : 1,118.7 kwh/kw (-2.22%)* 1 Y/module area: 169.2 kwh/m² PR: 93.1% : 6.3 Yingli Green Energy YL260C-30b (Panda) / Mono : 267.9 W TC: -* 8 %/K Y/ : 18.8 kwh/kw * 24 no grade Yingli Green Energy YL260C-30b (Panda) / Mono : 267.9 W TC: -* 8 %/K Y/ : 18.8 kwh/kw no grade Zentralsolar Deutschland Genius SDM 185-10004-185 / Mono : 190.6 W TC: -0.48 %/K Y/ : 1,075.6 kwh/kw (-5.99%)* 1 Y/module area: 160.2 kwh/m² PR: 89.5% : 5.5 ZN Shine PV-Tech ZX250(48MS / Mono : 252.3 W Area: 1.70 m² Y/ : 1,099.1 kwh/kw (-3.93%)* 1 Y/module area: 163.1 kwh/m² PR: 91.5% : 8.4 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is February 2013 119

science & technology modules yield measurement test Detailed results of PHOTON s 2012 yield measurements Zytech Engineering ZT 230P / Multi : 230.8 W TC: -0.48 %/K Y/ : 1,072.5 kwh/kw (-6.26%)* 1 Y/module area: 150.9 kwh/m² PR: 89.2% : 10.5 * 1 deviation from test winner, * 2 no longer manufactured, * 3 Sunergy, * 5 previous model designation: CSG180S1-35/1589x807, * 6 previous model designation: CSG230M2-30/1640x992, * 7 previous model designation: ES-200-P60(230), * 8 measurement data is The PHOTON yield measurement logo Manufacturer and module type Whichever company markets the module type is considered to be the»manufacturer.«this can be a company that does not produce the module itself but instead has the module made on its behalf and distributes it under its own type designation. Performance ratio This value, used to determine a module s placement in the rankings, indicates what percentage of the irradiation that strikes a module is actually converted into power, while also factoring in its effi ciency. The theoretical maximum of 100 percent could be reached if a module consistently exhibits the same effi ciency as it does under standard test conditions (STC); in practice, however, deviations occur in particular when light is weak and temperatures are high. The performance ratio of a module therefore always depends on how well it can cope with the weather conditions at the respective installation site (see article on p. 84). The best performance ratio values in the current test are 92 percent or higher, with any value above 90 percent being a good to very good result. In the long term, it is expected that the performance ratio of high-quality modules will approach 100 percent due to technological improvements. Ranking All solar modules that completed a full year of PHOTON International yield measurements over the course of 2012 (meaning they were installed on the test field before the start of January 2012) have been given a ranking that corresponds to their performance ratio value. But it must be noted that the difference between test candidates results are sometimes smaller than the measuring tolerances. When the difference is less than around 0.5 percentage points, the results can be considered to be virtually identical. Color bars Performance ratio values ranging from 75 to 100 percent are shown. Two vertical white lines (at 79.0 or 95.2 percent, respectively) indicate the position of the weakest and best performing modules in test year 2012. A black triangle marks the position of the tested solar module on this scale. Further information To learn more about PHOTON Lab and the module yield test go to: www.photon.info/laboratory 120 February 2013

Dig deeper online: all data about all modules in 177 pages As you have no doubt come to appreciate, PHOTON International s market surveys offer a wealth of information. For obvious reasons we can not put all of it into the print edition. This year s module survey table consists of no less than 177 pages, featuring the module specs you need. We not only give you the most common values, such as nominal power and module efficiency, we have also tried to find out who actually manufactured the cells. You can also find out what type of connectors can expect. And finally we present an overview about the power guarantees that come with each module, as well as listing the regions where it is available. Accessing the data online also has the advantage that they are easily searchable, a feature you will surely come to appreciate while you dig through no less than 168,300 specs. The table with all the data is exclusively available to PHOTON International subscribers in an extended PDF file, which can be downloaded at www.photon.info. mbk Let the search begin: The extended online version of the module survey table contains 168,300 specs. Our Total Shipments Reach 80,000,000 Units! 6th RENEWABLE ENERGY INDIA 2012 EXPO SOLAR POWER INTERNATIONAL Location:Orlando, Florida, USA Sept.10th -Sept.13th Booth No.:Hall A, 1168 27th EU PVSEC Location:Frankfurt, Germany. Sept.25th-Sept.28th Booth No.:TBD 6th RENEWABLE ENERGY INDIA 2012 EXPO Location:India, New Delhi Nov.7th- Nov.9th Booth No.:Hall5, 5.38B February 2013 121