EDEKA Nord aktuell 2007 EDEKA NORTH - SOLAR POWER PRODUCTION

Transcription

1 EDEKA Nord aktuell 2007 EDEKA NORTH - SOLAR POWER PRODUCTION Five Years Photovoltaics (Dipl.-Ing. Architekt Thilo Wierzock)

2 EHG North in Neumünster (Thilo Wierzock) Contents 1.) EDEKA Group 2.) Center-Revitalisation 3.) Idea and Concept 3.) Feasibility Analysis / Project / Realisation 4.) Process Of Facilities 5.) Monthly Solar Production 6.) Calculation Of Profitability 7.) Energy Consumption And Solar Production Of The Center 8.) Hints And Experience EDEKA Handelsgesellschaft Nord mbh 2

3 1.) EDEKA Group EDEKA Handelsgesellschaft Nord mbh 3

4 EHG North in Neumünster (Thilo Wierzock) Today the EDEKA group has a net turnover about 38 billion EUR, More than employees and a distribution network of about stores and so EDEKA is the undisputed number 1 in German food trade EDEKA Handelsgesellschaft Nord mbh 4

5 Regional company EDEKA North Today the EDEKA North generated a net turnover of more than 3.3 billion EUR. This regional group is an employer of more than employees (without our independent retail dealers and their employees) and forms a distributions network of about stores EDEKA Handelsgesellschaft Nord mbh 5

6 Store-Assortment (food retail market) - In an EDEKA store we carry according to size from approx to articles. - Wide and distinctive freshness assortment including service bars. - Branded article, our own EDEKA high-class brands and our discount articles ( Gut & Günstig = Well and Keen ). - Every independent trader decides the assortment of the regional products himself. - In Germany EDEKA is the largest marketer of regional products. - From the field on the table : local cultivation guarantees short an low-emission ways. - Our own meat- / sausages- as well as bakeryproduction guarantee high and directly controllable quality. - As a strong partner of our local producers we protect jobs and strengthen the purchasing power on site EDEKA Handelsgesellschaft Nord mbh 6

7 Projects EDEKA Handelsgesellschaft Nord mbh 7

8 2.) Revitalisation E-Center in Heide (2005) E-Center Frauen - Hamburger Str. 145 in Heide EDEKA Handelsgesellschaft Nord mbh 8

9 -Involved in project: -Object owner / Developer -- EDEKA Handelsgesellschaft Nord mbh, Neumünster -- Immobilien und Treuhand GmbH (ITG), Hamburg -Retailers -- Superstore E-Center Frauen (Frischemarkt Frauen, Brunsbüttel) -- Drugstore Rossmann (Hannover) -- Textile market Ernsting`s Family (Coesfeld-Lette) -- various shop-concessionaires -Modernisation (Opening ) -- Architekten Amtage+Bremer+Marquardt (Hochbau), Moorrege -- Ingenieure Wiemken+Reinmann (Haustechnik), Rendsburg -- Ingenieur Reuschke+Wetegrove (Tragwerk), Pinneberg -- Solar-facility SolarWorld AG, Bonn -- Steel construction Ferrus GmbH, Neumünster -Electric network provider -- Public-Utility Company in Heide EDEKA Handelsgesellschaft Nord mbh 9

10 2.) Idea and Concept -- Our initiation of the development fell at the time of outlet of the German Federal solar-aid-programm roofs in 2003 or the following novella of the German-Renewable-Energy-Law in 2004 (EEG) -- Beside a friendly and bright architectural face we were search of an unequivocal image signal => - Lasting and environment-conscious handling with energy and row materials. -- Genius Loci => The front view of the building has an absolutely shadowless orientation to the south -- Idea => power- or heat-generation by solar energy -- First considerations and calculations of profitability showed that the seasonally different demand of heat - for a superstore excludes an economic supply and storage of solar thermal energy. -- Concentration in the second kind of solar energy => - all-year solar power by photovoltaics - Check of the existing and the planned building construction. The old southern preroof offered two free surfaces with sufficient static reserves and the desired architectural effect; two blue, brightly glittering wings the frame for the new center-entrance with the signal: - Welcome front view EDEKA Handelsgesellschaft Nord mbh 10

11 3.) Feasibility Analysis / Project / Realisation -- The first profit forecasts (2005) damped our euphoria of an - energy-self-supplied building (building consumption = solar return) -- From now we focalised the details of the national solar support (EEG). - With 20 years guaranteed electricity purchase and 5% degressive - payment/year; a good time for the realisation of our pilot project in On the southern preroof an the new glazing sloping roof - we found four efficient locations for 550 square metres of PV-modules - in 30 installation with a top achievement of approx. 70 kwp. => possible annual production approx kwh (forecast). - Investment estimate with a typical rule of thumb at that time : 5.000,- EUR/kWp with 70 kwp => ,- EUR -- Detailed plannings in line with market requirements and economic - efficiency plannings followed in contact with three producer or suppliers Parallel the construction-sided archievements, the conditions to the investment - connection and the payment of the purchase were discussed with the - network provider. On time to the building-completion a contract for supply - came into force between the owner an the public utilities EDEKA Handelsgesellschaft Nord mbh 11

12 4.) Process Of Facilities - Performance: modules (SolarWorld AG, Typ SW 175 S je 175 Wp) = 73,85 kwp - (guaranteed level of efficiency 80% for 25 years) - => 8 per millel / p.a.) - -- Performance each year according manufacturer`s data => kwh/p.a. -- Plausibility check with rule of thumb (North of Germany) - approx. 850 kwh/kwp multiplied with 73,85 kwp = kwh/p.a. -- Anual achievement of the present years ( ) - => approx kwh/p.a. - cell type: mono-crystalline silicium EDEKA Handelsgesellschaft Nord mbh 12

13 Physical Structure: - Power plant (generator) with 4 net-couplet partial plants (212 modules with 6 inverter as well as 100/3, 20/1, 90/3 => 13 inverter) - Triangular-shaped 30 steel construction incl. lightning protection - on both sides of the inverter (AC/DC) switch-disconnector and overvoltage protection - Residual-current-protection (nominal-change / power failure) - Electric meter for the net-supply (converter-messurement) and our private transformer (400V / 20 kv medium voltage) - Analysis of the inverter over data bus with a data logger (current capacity / malfunction message / compound return) - The alalysis we are monitoring with an analog modem (service-company / facility operator / LCD-visualisation-tableau) EDEKA Handelsgesellschaft Nord mbh 13

14 5.) Monthly Solar Production E-Center Heide (Januar 2009) EDEKA Handelsgesellschaft Nord mbh 14

15 - - Investment Costs (rounded): -- solar system ,- -- steel-construction ,- -- roof-sealing 5.000,- -- installations / display 5.000,- -- additional expenses / net-supply expenses ,- -- installations room (existed technical-level) - - amount (EUR/Netto) ,- (5.100,- EUR/kWp) - Profits: kwp purchase (fixed price 2005 bis 2025) - => 54,53 Cent/kWh plus VAT - (degression-result 2009 => 44,41 Cent/kWh EEG with the novella EEG 2009 => 43,01 Cent/kWh) -- from 30 kwp partial purchase 51,87 Cent/kWh -- from 100 kwp partiel purchase 51,30 Cent/kWh -- monthly settlement from our net provider -- annual return : with kwh => ,- EUR/Netto with kwh => ,- EUR/Netto with kwh => ,- EUR/Netto EDEKA Handelsgesellschaft Nord mbh 15

16 EHG North in Neumünster (Thilo Wierzock) 6.) Calculation Of Profitability (Break Even Point without financing) average annual achievement kwh/p.a. - annual dissipation 8 pro/mill - EEG-payment (2005) net 54,53 / 51,87 cent/eur => bei 73 kwp => 52,9 cent/eur - investment net ,00 EUR - management insuarnce / maintenance / reserve / rent for meter / cost of administration - inflation (correction %) 1, EDEKA Handelsgesellschaft Nord mbh 16

17 7.) Energy Consumption And Solar Production Of The Center For Comparison: - Anual power consumption E-Center Heide - Anual return solar-system E-Center Heide - Average annual consumption of a german household EDEKA Handelsgesellschaft Nord mbh 17

18 8.) Hints And Experience - During the roof-services biannual as possible parallel cleansing and maintenance of the solar-plant. - Pay attention for shadowless, best southern orientation and large connected installation surface. The plant-components should be standardised. - Use realistic efficiency analysis. Take into account the costs of management, additional expenses, subconstructions, maintenance and consider the reduction of modul-efficiency. - Currently we pursuing two projects with thin-layer-technology. Maybe with partial own consumption. The new EEG (2009) promotes own arrangements to 30 kwp with 21,01 ct/kwh. The prise for that modules are about 10% less than the silicium modules. Unfortunately, the better price ist offset by the inferior efficiency to silicium. But in other hand the thin-layer-technology works better while overcast weather. It should be mentioned that the energy balance of thin-layer-cells is four times better than to silicium. - Meanwhile four of thirteen inverter had a malfunction. Thanks to the data logger this failures were determined and immediatly the repair (guarantees) could be executed. - Does a solar-system offer an added value? (weather protection /giving shade / architectural design and image) EDEKA Handelsgesellschaft Nord mbh 18

19 Thank you - Vielen Dank!