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Solar energy in Hannover

Solar energy in Hannover. In the Hannover Region (1.1 Mio. inhabitants) 32.000 m² Solar heating (3.400 Units) 13.000 kWp Solar current (1.500 Units; approx. 120,000m²) This covers the electricity requirement of approx. 3.500 households.

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Solar energy in Hannover

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  1. Solar energy in Hannover In the Hannover Region (1.1 Mio. inhabitants) 32.000 m² Solar heating (3.400 Units) 13.000 kWp Solar current (1.500 Units; approx. 120,000m²) This covers the electricity requirement of approx. 3.500 households A focal highlight in the skyline right from the main station: a photovoltaic installation on a Socio-cultural centre

  2. 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 30kWp: 0.43 € (in 2009); 0.36 € (in 2011) • More than 100kWp: 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

  3. 1.350 m² roofmounted collectors 90 council housing units Pilot project costs 3.3Mio. €; 65% of which is public subsidy 1999 a large-scale Solar heating Projectas Backup heating:Solar city in Kronsberg development area

  4. ‘Solarcity’ All in all a 40 % coverage of hot water and heating demand using solar energy

  5. ‘Solarcity’ 2.750 m³ thermal storage tank landscaped as children's playground

  6. Microclimate house project at Kronsberg (1999) 4 microclimate zones with mediterranean vegetation between house sections with a total of 120 flats

  7. 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

  8. 25 Solar-School Projects(16 PV, 7 heating)incorporated into educational curriculum

  9. An extremely successful programme: roof areas on municipal buildings rented out for private investors Currently 16 units with 572 kWp ( 5,100 m² area) Approx. 15 new units still this year More in offer next year

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