Denmark has launched a new virtual map to help assess rooftop solar potential in the country
Building owners will be able to identify the areas on their roof surface that can most optimally be used for solar panel deployment
It will help with the annual solar radiation potential for a rooftop or on a per square meter basis
The Danish Energy Agency, or Energistyrelsen, has introduced a new virtual map to explore the potential of rooftop solar in order to encourage its adoption among building owners in the country.
The tool can help quickly and easily identify the areas of the roof surface where solar panels will work optimally by taking into account the weather data, shadow cast and slope, explains the agency. “This will make it easier to find out where solar cells on the roof most effectively contribute to the green transition,” said the Deputy Director General of the Danish Energy Agency, Stig Uffe Pedersen.
This model has been developed by Septima for the Danish Energy Agency in collaboration with the Danish Agency for Green Land Redevelopment and the Aquatic Environment and the Danish Planning and Rural Development Agency.
It is based on the country’s elevation model, which the agency describes as a laser scan of the country carried out from an aircraft. It also makes use of data from the Building and Housing Register (BBR) as well as meteorological data, data for shadow cast, roof slope and orientation.
Interested building owners can check the potential of solar panels on their rooftops on the website https://sologvindinfo.dk/spatialmap. They can filter the results to understand the annual solar radiation for a rooftop or on a per square meter basis.
The agency, however, adds the caveat that the map will not be able to assess if the building can support a solar PV system technically or its economics, nor it will be able to share any municipal regulations that may prevent such an installation. It will also not assess the technical condition of the building or its ability to access the electricity grid and existing facilities.
Currently, rooftop solar accounts for close to 1/3rd of the country’s total solar PV capacity, according to the agency. As of December 31, 2024, Denmark’s cumulative installed solar PV capacity stood at approximately 3.9 GW. The country targets to cover all of its electricity consumption with 100% renewable energy by 2030.
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