Buildings that are suitable for solar power generation are marked on the solar cadastre map in the colors red, orange or yellow. The chapter "What the map says" contains more information on this.
Do you want to install a solar system on the roof of your building? Then read on in the chapter "Investing in solar power systems".
You agree to the terms of use below.
Terms of use
The use of the solar cadastre is exclusively for private purposes. Commercial use is prohibited. The data shown for the buildings are protected by copyright, disclosure to third parties is not permitted.
Photovoltaics
It all roofs have been recorded and evaluated on which a sensible use of solar radiation by solar power systems is possible.
The orientation and inclination of the roofs are the main factors that determine whether they can be used. In addition, shading by trees and neighboring buildings was taken into account. Shading is primarily a problem for solar power systems. A shadow on a small part of the system can already lead to a significant drop in performance in the overall system. Therefore, an assessment was only made for roofs where there is a contiguous area free of shading of at least 10 square meters.
The usable roof areas are assigned. The color green indicates "very good", orange "good" and yellow "conditional" use. For representations from a scale of 1 : 2000, the usable area of the roof is also shown. The values of a roof area can be output by clicking on it if the blue i-button in the toolbar is activated.
The data collection and calculation method does not allow absolute certainty for the evaluation of roof areas. In any case, it is worth taking a look at the roof. Sometimes a minor change, such as moving ventilation pipes, is sufficient to make a roof area suitable for solar energy or to increase the area shown even further.
Solar thermal systems
The calculations have been carried out for the installation of solar power systems. The marked areas are also suitable for solar thermal. Solar water heating systems are insensitive to minor shading. A roof may therefore be suitable for solar thermal systems even if it is not rated and has been grayed out on the map.
Promotion of solar thermal systems
Solar thermal systems are subsidized by the Federal Office of Economics and Export Control (BAFA).
Information on BAFA's funding program and the forms required to apply can be obtained directly from BAFA under the keyword "Renewable Energies".
Solar power systems are a safe investment; because they provide a predictable return on the investment through the feed-in tariff. Once contractually agreed, the feed-in tariffs are granted over a period of 20 years.
Approximate yields from PV systems can be calculated using solar calculators.
In Wolfsburg, the Wolfsburg EnergyAgency will help you free of charge with questions about investing in and subsidizing solar energy.
Wolfsburg's roofs offer great potential for the use of solar energy. Over 2.6 million square meters of roof area in total have been identified in the categories "very suitable", "well suitable" and "conditionally suitable". On this, 263,000 megawatt hours of electricity could be generated annually. This amount of electricity would avoid 114,000 tons of carbon dioxide, which is almost ¼ of Wolfsburg's emissions (excluding Volkswagen).
As the owner, you can have the valuation of your building deleted. All you need to do is send an informal written message stating your address and a declaration that you are the owner of the building.
Postal address:
City of Wolfsburg
Department of Citizen Services
Environmental Office
Porschestrasse 49
38440 Wolfsburg
You can copy the following sample text into your letter:
Subject: Deletion of solar energy data
I request to delete the solar potential data of my building, Musterstraße xx.
I declare that I am the owner of the building.
Signature
Contact
City of Wolfsburg
Department of Citizen Services
Environmental Office
City Hall B
Porschestrasse 49
38440 Wolfsburg
Mr. Stefan Baumgardt
Telephone: 05361 28-5192
E-mail to the environmental office