Show me your Monte Carlo simulation where wind (which is negatively correlated to solar) and 8 hours of battery storage are factored in, along with small amounts of gas peaking plants.
Here's the official meteorology insitutions sunshine data: https://www.ilmatieteenlaitos.fi/1991-2020-auringonpaiste-ja...
Here's some solar production data over the seasons in visual form: https://profilesolar.com/locations/Finland/Helsinki/
What is also important to know is during the winter is that while production on average shows numbers every day, in practice that production comes only during the few actually sunny days in December when the panels aren't covered in snow.
Go even a bit up north from Helsinki and unless you keep your panels clear of snow manually, you'll hardly make anything between Nov and April.
EDIT: Here's a reddit thread where someone shares real production data: https://old.reddit.com/r/Finland/comments/1i6onkk/solar_ener...
Recent experience has shown that we need to have our power generation on our soil. That is not something that can be compromised on.
> storage
Weeks of storage would be hilariously more expensive than just building more nukes.
> gas
Our main source of gas was Russia. Enough said.