Solar power

Open data

• Solar power generation forecast - updated hourly
• Solar power generation forecast - updated once a day

Solar power generation forecasts are based on weather forecasts, estimation of the total installed solar panel capacity and the estimated locations of the panels in Finland. Fingrid has estimated the installed capacity by using installation statistics published annually by Finnish Energy Authority's that it receives from the distribution system operators. The locations are estimated roughly based on the operating area of each distribution system operator. Fingrid adjusts the statistics by installation growth forecasts.

The day ahead forecast is published every day at 12 EET and is not updated after publication. The continuously updated forecast is calculated and updated every hour for the next 36 hours.