Does the sun shine in the High North? Vested interests as a barrier to solar energy deployment in Finland

This article deals with solar energy policy and solar energy potential in Finland. Finland is one of the few countries in the EU that has taken hardly any direct subsidies into use for solar energy. At the same time, the transition to renewables is crucial in mitigating climate change. Finland's irradiation is almost the same as that of Germany, a country that is one of the top markets for photovoltaics in the world, also due to its successful support policy. Why does Finland not do likewise and adopt a support policy for solar energy to enforce its mix of renewables? What, if any, policy mechanisms would be needed to promote solar energy?