The growth of renewable energy production in Finland has been rapid in recent years, and solar power has stood out with particularly high growth figures. The growth is expected to remain strong since large-scale industrial solar plants start going online. Solar power complements wind power well, as it peaks in summer while wind peaks in winter.
In Finland, solar power projects with a capacity exceeding one megawatt are often classified as industrial-scale installations. Despite its northern location, Finland's solar energy potential is comparable to that of Central Europe. New solutions are also combining energy production with other land uses – for example, agriculture or supporting biodiversity.
Solar energy construction is generally subject to the same regulations as other types of construction. The required land use planning and permits for a project depend on its size, impacts, location, the current land use planning status of the area, and the need to coordinate land use. A new chapter concerning specific provisions for solar power construction is proposed to be added to the Land Use Act (draft Government Proposal was published on 16.5.2025). The draft proposes adding a new chapter on solar power master plans and construction of solar power plants larger than 10 hectares in size would always require a solar power master plan or a local detailed plan. Under the proposed rules, the special conditions for approving construction of solar projects would be evaluated in the master plan process and a solar power master plan would also have to meet a set of special content requirements.
The Ministry of the Environment has also granted financial support to municipalities and regional councils for green transition investment projects, such as land use planning, permitting, and related studies for large-scale solar power production. Through high-quality assessments and land use planning that reconciles various needs and land uses, the aim is to identify the most suitable and promising areas for solar energy development.