Vähä-Sorrila Solar park in Orimattila granted final building permit
The solar power park project in Vähä-Sorrila, Orimattila has been granted a final building permit. The solar power plant, jointly developed by Solmar Consulting and Korkia, will have a maximum capacity of 80 MW of renewable electricity, equivalent to the annual consumption of around 4000 electrically heated detached houses
The utility-scale solar power park planned in the Vähä-Sorrila area in Orimattila, Finland, has been granted a final and legally binding building permit in April 2025. Co-developed by Solmar Consulting and Korkia, the solar power plant is expected to generate approximately 80,000 MWh of renewable electricity annually. Additionally, a 30 MW battery energy storage system has been approved for the site, enabling optimal use of the grid connection capacity.
The permitted solar park covers a total area of 115 hectares and is situated on agricultural land, ideal for solar power construction. Converting former agricultural land to solar projects can enhance biodiversity as the land is transformed from monoculture grain fields into areas supporting more diverse vegetation. This plant diversity can also reflect more sunlight back to bifacial solar panels, potentially increasing their energy yield.
“The Orimattila Vähä-Sorrila solar park project has progressed to the building permit stage in excellent cooperation with landowners and the city,” says Jari Marttinen, CEO of Solmar Consulting.
“We are proud to contribute to the development of sustainable energy production in collaboration with our partner Korkia. Our goal for our solar park projects is to bring long-term value to landowners, local businesses, and municipalities alike,” Marttinen continues.
Competitive solar energy for growing demand
The Vähä-Sorrila location offers several advantages for a solar energy project.
“The Orimattila site is excellent in terms of location and project fundamentals. Its southern position ensures strong solar irradiance, and the project can be implemented cost-effectively due to favorable construction conditions and proximity to grid infrastructure,” says Matti Manner , Head of Solar Project Development in Finland at Korkia.
The solar park, which has been granted planning permission, is located in an area of arable land that is very suitable for the construction of solar power. Typically, the use of arable land for solar energy projects can increase the biodiversity of the area by freeing up land from crop cultivation for more diverse vegetation. Diverse vegetation also increases solar radiation from vegetation back to the solar panels, which can improve the yield of double-pole solar panels.
“Throughout the design of the solar power park, we collaborated closely with biologists to consider local nature values — including the placement of solar panels, buffer zones, and local flora and fauna. Wildlife crossings were also integrated into the design. Near residential areas, we worked actively with landowners and local residents to minimize landscape impacts, either through landscaping or by increasing distance." explains Olga Boustani, Project Development Manager at Solmar Consulting.
Solmar Consulting
Solmar Consulting is a Finnish sustainable and clean energy company that develops utility-scale solar power parks until construction permit phase. We collaborate with Korkia, a global global investor in renewable energy.
Korkia
Korkia, a global renewable energy developer and investor, currently manages a portfolio of over 140 solar and battery energy projects across eight countries. In addition to the Orimattila solar park, several other projects globally as well as in Finland are expected to reach construction readiness during 2025.
More information:
Jari Marttinen
Managing Director, Solmar Consulting Oy
+358 44 2981979
jari.marttinen@solmar.fi
Olga Boustani
Project Development Manager, Solmar Consulting Oy
+358 44 9015378
olga.boustani@solmar.fi