Solar energy in Hannover In the Hannover Region
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Solar energy in Hannover In the Hannover Region (1. 1 Mio. inhabitants) 32. 000 m² Solar heating (3. 400 Units) 13. 000 k. Wp Solar current (1. 500 Units; approx. 120, 000 m²) A focal highlight in the skyline right from the main station: a photovoltaic installation on a Socio-cultural centre This covers the electricity requirement of approx. 3. 500 households
In Germany (and Hannover) a very favourable financial promotion Photovoltaic plants in Germany are granted a statutory guaranteed feed -in tarif for 20 years depending on the size: • Less than 30 k. Wp: 0. 43 € (in 2009); 0. 36 € (in 2011) • More than 100 k. Wp: 0. 39 € (in 2009); 0. 32 € (in 2011) Solar hot-water plants, and especially educational school projects are granted an allowance from the regional climate fund
1999 a large-scale Solar heating Project as Backup heating: Solar city in Kronsberg development area 1. 350 m² roofmounted collectors 90 council housing units Pilot project costs 3. 3 Mio. €; 65% of which is public subsidy
‘Solarcity’ All in all a 40 % coverage of hot water and heating demand using solar energy
‘Solarcity’ 2. 750 m³ thermal storage tank landscaped as children's playground
Microclimate house project at Kronsberg (1999) 4 microclimate zones with mediterranean vegetation between house sections with a total of 120 flats
Microclimate zones The roof: a special type of three-layer film: In Summer the elements in the middle film close and allow only few sun-rays through; In Winter the middle film is pressed onto the lower one allowing the sun-rays to warm the microclimate zone. The Energy concept: Low-energy house construction using mechanical ventilation and aeration unit with heat recovery
25 Solar-School Projects (16 PV, 7 heating) incorporated into educational curriculum
An extremely successful programme: roof areas on municipal buildings rented out for private investors Currently 16 units with 572 k. Wp ( 5, 100 m² area) Approx. 15 new units still this year More in offer next year
