Photovoltaic potential in the Helsinki Metropolitan Area
Description
Radiation energy in the Helsinki metropolitan area, solar panels are suitable for locations and electricity generation potential (MWh/year) per building.
The material consists of three levels: 1) solar radiation energy for rooftops, kWh/m²/year (tiff), 2) area suitable for solar panels on roof (shp) and 3) surface area (m²) and potential output of photovoltaic power (MWh/v) per building (shp).
Solar radiation energy for rooftops has been modelled using the city’s point cloud data, which for Espoo dates from 2013, for Vantaa in 2012 and for Helsinki from 2008-2013. The modelling takes into account direct and cloud-reflective radiation, the shape and direction of the roof, shades of buildings and trees, and the role of the sun in different times of the day and year.
The area suitable for solar panels has been determined by selecting those parts of the roof that emit more than 847 kWh/m²/year, a single area of at least 5 m² and a distance of more than 0.5 m from the edge of the roof.
When calculating the annual electricity output potential, the efficiency of solar panels is assumed to be 15 % and they are installed in parallel to the roof even on flat roofs. The maximum area suitable for solar panels in the building is p_ala_m2 in square meters and the annual electricity output (MWh/v) in the field sahk_mwh_v.
In the Sytlas map service, you can select the level “Solar location suitable for solar panels”; which shows what part of the roof is getting enough solar radiation on a yearly basis. The photovoltaic potential in kWh/year and the area in square meters suitable for solar panels can be found in the data of each building.
The material was completed in the Decumanus project and was produced by Eurosense, a Belgian company specialising in spatial information services. The material will not be updated.
Resources
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https://www.avoindata.fi/data/dataset/2cdf2ba0-293b-4097-9956-9348384ae7b7/resource/fd650122-4550-4896-a4d5-042b1379176c |
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https://www.avoindata.fi/data/dataset/2cdf2ba0-293b-4097-9956-9348384ae7b7/resource/1bd86f0f-2197-46c0-b158-0f3e411de601 |
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https://www.avoindata.fi/data/dataset/2cdf2ba0-293b-4097-9956-9348384ae7b7/resource/f2dbf2ce-c441-4c47-979f-699189ca6ab7 |
Tags
- ilmasto
- vantaa
- sähköhuolto
- energiavarat
- kauniainen
- espoo
- avoindata.fi
- ei-inspire
- helsinki