ROOFER.CO.NZ SOLAR-RIB PHOTO-VOLTAIC LAMINATE

Transcription

1 ROOFER.CO.NZ SOLAR-RIB PHOTO-VOLTAIC LAMINATE

2 The power generator. Testing regime. Calder Stewart s innovative approach to roofing, and the advancement in solar technologies means roofs can combine aesthetics with energy saving. Solar-Rib s streamlined looks and 5mm laminates match modern architecture and stand-up to the harsh New Zealand environment. The Solar-Rib system is a modern roof profile, with the option to attach Photo-Voltaic Laminates (PV Laminates) to the inside of the roof, delivering a smart roof with the benefits of electricity. PV Laminates also have the distinct advantage that they can work at a lesser roof pitch than conventional more obtrusive glass solar panels. And operate on overcast days or east/west orientation without dramatic drops in efficiency. Future proofing homes or commercial buildings could not be simpler. Adding Solar-Rib as a roofing profile to your property creates a way towards an energy efficient building for decades. Solar-Rib profile EFFECTIVE COVER SHEET WIDTH 56º Solar-Rib has been AS4040 tested and that s not all; like all Calder Stewart Roofing products we religiously tested Solar-Rib and the PV Laminates in the deep South where our head office is based. For a new product to work in New Zealand, particularly one that generates its own electricity, the best place to test is in an area where it is most likely to fail; an area with excessive rainfall, low sun shine hours, extreme winds, hail, snow and a curious native parrot (Kea) that will destroy and eat anything it can. Our theory is simple. If this product could survive and perform in this environment, it will perform and survive anywhere. Calder Stewart Roofing began testing PV Laminates and Solar-Rib when we partnered with the Department of Conservation (DOC) to provide a durable system that would deliver electricity to some of its most remote huts. Our starting point was Dumpling Hut on the Milford Track. The success of the project saw us quickly expand the product, at DOC s request, to Codfish Island in Foveaux Straight, Mintaro Hut on the Milford Track, and Siberia Hut deep in the Mt Aspiring National Park. After many return journeys, to measure the performance of the roofing and solar materials we have expanded the products application. It is now usedon schools, private homes, farm buildings and industrial sheds across New Zealand. Solar-Rib is New Zealand s only roofing profile that is specifically designed to generate electric power through the use of Photo-Voltaic Laminate solar panel technology. An attractive profile offering elegant looks, Solar-Rib can be installed without the PV Laminate, with the laminate being added onto the profile at a later time if desired. Solar-Rib represents a progressive product, paying for itself in the long run and is an ideal way to combat increasing energy prices by taking advantage of nature s most renewable source of energy - the sun. Codfish Island, Foveaux Strait Cover image: Mintaro Hut, Milford Track, Fiordland

3 PV Laminate partner. Why use PV Laminate? There are many advantages in the use of PV Laminate over traditional glass panels, some of the key points are: Marcegaglia is the PV Laminate partner of Calder Stewart Industries solar programme. When looking at expanding our roofing offers, we researched the top products and suppliers globally. Marcegaglia, an Italian business, was chosen for their innovative forward thinking approach and extremely high quality product range (both Calder Stewart Industries and Marcegaglia are privately owned family businesses). Marcegaglia is a leading industrial group worldwide in the steel processing and solar sectors. The group has operations worldwide with 7500 employees and 50 manufacturing plants covering 6 million square metres. Marcegaglia has a strong presence in the energy sector and is a leader in the development of photo-voltaic technology. Their manufacturing plant in Taranto, Italy is the first in Europe dedicated to the production of amorphous silicon thin film modules in variable lengths. The PV Laminates division offers the full range of service, from design and manufacturing, project supervision right through to installation and maintenance of large scale energy generation programmes. No exposed cabling. Rain wash reduces service requirements. The product is recyclable. It s shade and UV tolerant. PV Laminates can be used on curved roofs. The PV Laminate panel has the highest kilowatt hour yield per watt (peak). Solar-Rib is an integrated system that works with, and is supported by the roofing manufacturer, Calder Stewart Roofing, a household name. Solar-Rib laminates are low-profile and follow the line of the roof. Unlike glass panels that protrude and need to be bolted down, PV Laminates sit in the roof tray and require no additional fixings. PV Laminates are very durable, and can withstand hail storms, cricket balls or being walked on by trades, (unlike traditional solar panels). This makes them great for schools and commercial buildings. PV Laminates work at a very high efficiency rate even when in the shade or at a low pitch. Solar-Rib roofing and PV Laminates can only be installed by Calder Stewart approved installers, giving you peace of mind in the quality of the materials and workmanship.

4 Smart enough to harness the sun, and ride it all the way to the bank. When John & Caroline Beauchamp made the decision to invest in a solar system for their new home, they did their research before parting with their dollars. Having just built a new home the idea of bulky glass panels on the roof was not very inviting. That s why they got in touch with Calder Stewart to look at the latest in solar technology, photo-voltaic laminates. The system was integrated into the roof design, it didn t protrude from the roof and even better, they didn t need to drill more holes in the roof or mount rails and brackets. Waitaki Valley School. In 2009 when the Waitaki Valley School was building a new administration and classroom block, it was seen as the perfect opportunity to look at options for offsetting the schools running costs. Clever design coupled with an innovative solar package from Calder Stewart Roofing did the job. A turnkey package designed to suit the school s budget and power needs was put together using Solar-Rib and PV Laminates. Like most schools in New Zealand there was the constant threat of rugby and cricket balls ending up on the roof and kids scaling walls to retrieve them. Also, like many industrial and commercial buildings, trades and services were often on the roof for routine maintenance. This was not the suitable environment for glass panels, making the Calder Stewart PV Laminate the obvious choice. The laminates are almost bullet proof. Railing and brackets aren t required. They also get sufficient rain wash, which significantly cuts down on maintenance costs: Another bonus for the school. This was a major plus as the Beauchamps didn t want a new home with a high chance of leaking! Not only that but the system needed to be durable. Southland is known for pretty fierce weather. If they were to invest in a solar package, it needed to be able to withstand the local climate. Since installing the Solar-Rib roof and PV Laminate system, the Beauchamps have only paid basic line charges. Not bad considering Winton, in Southland, gets on average 25% less sunshine hours than the rest of the country. John & Caroline Beauchamp

5 Design recommendations - design process & install. Schematic drawings & notes. Every building is unique. But once you have chosen Solar-Rib for your building project we Roof Efficiency Layout Ratings for PV Laminates Solar-Rib PV Laminate Arrangement Solar Power Grid Feed recommend that you and your designer work with us on your requirements. This takes into consideration the roof design potential for power generation, and more (we recommend we be involved early in the design phase). Once an order has been placed our design team will place the order for all the solar components.typically it takes at least 12 weeks for the PV Laminate panels to arrive from Italy. 1. Mono Pitch - 100% of the roof exposed. Mono pitch roofs can, if long enough, be stepped allowing for a second row of laminates to be installed on the lower section of the roof. 2. Gable - 50% of the roof exposed. Head Flashing Head Flashing Wire back to the inverter 1 Solar Laminate Array (DC) Solar Power AC to Grid 7 The install is broken into 6 parts: Wire back to the inverter 2 1. Solar-Rib tray is cleaned with alcohol thinners to remove all traces of silicone and dust. 2. PV Laminate is applied one at a time to each tray then rolled with pressure to ensure maximum adhesion. 3. Once all panels are fitted, wires are run from the panels to the invertor located close to the main switchboard. 3. Hip - 30% of the roof exposed. Laminates must remain the same length and cannot be integrated with another size. 4. Gable with Valley - 20% of the roof exposed. All cables back to the inverter are concealed under the flashing Photo-Voltaic Laminates Notched out back upstand to allow wires safe passage Photo-Voltaic Laminates Solar-Rib Profile DC Voltage Input 3 Inverter AC Voltage Output To AC 5 Appliances 6 4 Main Fuse Box AC Meter 4. The invertor is wired up. 5. The local power authority connects up import export meter and grid tie from the invertor. 6. Flip switch and system commissioned ready for power generation. 5. Hip and Valley - 15% of the roof exposed. Solar-Rib Key Design Considerations / Notes 1. House/farm building roof pitch is ideally north facing 2. 20m 2 of roof coverage = 1KW power production. 3. Ideally laminate lengths must remain consistent throughout roof for residential projects. Not to scale, percentages are estimates and will depend on design. Photo-Voltaic Laminates can be installed onto Solar-Rib roofing to a minimum pitch of 3 degrees. An isometric view showing how the photo-voltaic laminates attach to the Solar-Rib roofing profile and the placement of wiring, which is hidden underneath the head flashing at the top of the laminate. 1. Solar rays from the sunlight. 2. Solar energy is collected by the PV Laminates and made into direct current (DC) electricity. 3. Direct current (DC) is converted into alternating current (AC) electricity. 4. (AC) electricity is fed into the mains fuse box. 5. Your household building uses solar produced electricity for its own requirements first. 6. Surplus electricity passes through an export meter, this is what a power company buys. 7. Surplus electricity is sent out to the main grid for use by other consumers.

6 Laminate size range. Frequently asked questions. Q. Do I need a battery bank? A. This depends on your circumstances. Most residential and commercial buildings are grid Model Length (mm) Photo-Voltaic Laminate Sizes and Outputs (max) Width (mm) Weight (mm) P(Wp) Output Voc Isc Vmp Imp Q. I have a property that needs the roof replacing. Can I replace it with Solar-Rib PV Laminates? A. Yes. A specific design will be required to see if a viable amount of electricity can be generated. connected. That means you simply export power back to the electricity grid. However, some areas do not have access to the grid, so you ll need a battery bank to save stored power. Q. Will this heat my hot water? A. Yes. PV Laminate panels are designed to generate electricity. All energy generated is used M-PVL Q. How many kw do you need for the average home? first by the building. Surplus can be exported to the main grid, or stored in a battery bank. M-PVL A. Between 3kw and 5kw. The most common practice is to export the surplus energy. M-PVL M-PVL M-PVL M-PVL M-PVL M-PVL M-PVL Laminate Profile mm (1-3 1/2 ) 1 2 mm ±4.0 (29-9 5/8 ±5/32 ) Plug & Play Triple-Junction M-PVL 1. Transparent electrode 2. Blue light absorbing cell 3. Green light absorbing cell 4. Red light absorbing cell 5. Reflective metal layer 6. Lower flexible layer (stainless steel) 7. Thickness of a triple-junction cell ~ 1µ A typical inverter Q. Can I put Solar-Rib on, and retro fit the panels at a later stage if I can t afford it right away? A. Yes we can carry out a pre wire when the Solar-Rib is being fixed into place. Q. How many square metres does it take to generate 1kw of power on my roof? A. Approx 20m 2. Q. Can I get depreciation on a commercial property? A. Yes. 17%, as per New Zealand Tax laws. Q. Are there different types of PV Laminate panel lengths? A. Yes. Nine lengths; ranging from 2071mm to 9025mm. Q. Does my property need to be north facing? A. If you re starting from new, north facing is generally preferred. For existing premises we can carry out calculations to see what can be achieved. Q. Will hail or snow damage the PV Laminate? A. No. Unlike glass, PV Laminate is more flexible and resistant to impact; a bit like floor vinyl. Q. Is a specific design required? A. Yes. We can provide turnkey packages that include materials and labour. Q. How long will it last? A. The warranty for the laminates is 25 years. Q. Can it be recycled or used on curved roof? A. Yes. Q. What is the minimum pitch Solar-Rib / PV Laminates work at? A. 3 degrees. Q. Can PV Laminate work in conjunction with wind or hydro generation? A. Yes, though the specific design will be determined by what type of invertors are used. Q. Can drinking water be collected from a roof with PV Laminate? A. Yes. It s absolutely safe to collect the water from your roof. Q. How else can the PV Laminates be used? A. PV Laminates can also be used for boats, campervans, RVs, small sheds etc. and are a perfect solution for such applications due to their durability and flexibility. Q. How big is the inverter? A. It is roughly the size of a switch board that goes on a wall inside your home.