Huge solar power project being built in South Ostrobothnia
One of Finland’s largest solar farms is set to be built in South Ostrobothnia
The economic competitiveness of solar power has improved over the last few years, and this trend is expected to continue. In 2020, EPV Energy (EPV) started planning its first industrial-scale solar power project.
After looking into the optimal location for the solar farm, EPV decided to build it on a peat production area in Heinineva, Lapua, where peat production ended in 2022. The Heinineva area is large and open and almost unimpeded by shadow. In planning the solar power plant, EPV is making use of the data collected at the EPV Alavus solar power measuring station.
Heinineva is one of the largest industrial-scale solar power plants under construction in Finland in 2025.
Key figures for the solar farm:
- Plant’s total output 86 MW
- Approximately 123,000 solar panels
- Output per panel roughly 700 Wp
- Plant’s average output during its life cycle more than 80 GWh per year
- Length of panel mounts roughly 80 km
- Area size 120 hectares
All panels installed at Heinineva solar park – watch the video of the park’s completion
The installation work for EPV Energy’s first industrial-scale solar park was completed in August 2025. The published video offers a look into the various phases involved in constructing one of Finland’s largest solar power parks.
Electricity production started at Heinineva solar park
EPV’s solar park in Heinineva, Lapua, began electricity production with the first panel blocks in April 2025. Commercial production at Heinineva will start in early 2026.
EPV’s solar park is being built in Lapua
The Heinineva solar power plant, to be completed in late 2025, will be one of the largest in Finland and the first ever to be built in a phased-out peat production area. There will be around 123,000 solar panels installed in the park.
EPV Energy’s first solar park to be built in Lapua
EPV Solar Power Ltd, a wholly owned subsidiary of EPV Energy, has made an investment decision on an industrial-scale solar energy park. The new investment will increase EPV’s renewable electricity production by about 6% and will perfectly support EPV Energy’s New Electricity Revolution strategy.
EUR 12 million aid for EPV Energy’s giant solar power project
EPV Aurinkovoima Oy, a wholly owned subsidiary of EPV Energy, is planning an investment to build an industrial-scale solar energy park. The solar farm planned for Lapua received a boost when the Finnish Ministry of Economic Affairs and Employment granted the project investment aid of more than EUR 12 million in December 2022.
EPV is studying solar energy yield at its own solar power measuring facility
As a pioneer in zero-emission energy generation, EPV is constantly researching renewable energy technologies and energy production on the market. One example of this is the solar energy measuring station in Vuorenneva, Alavus, commissioned in September 2018.
The metering station allows us to investigate and improve the predictability of solar power. The plant’s output naturally coincides with periods of high electricity consumption, and it is designed to balance out peak loads in consumption.
Would you like to know more about the project?
Ask for more:
Ari Soininen, Managing Director of EPV Solar Power and Development Manager of EPV Energy Ltd
ari.soininen@epv.fi
P. 010 505 5040