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is indeed very important. Wind energy could be a solution but you would need a community to fund it.
We bougth shares for our ons in a windmill park. They do get an interest of 4.4%

Russia is a big country, you cannot make general statement about its climate like that. For example, in my home region (Rostov region), solar PV cells would be a profitable investment (albeit with a long repayment period to reach ROI>1). But solar panels used for heating would be an even more profitable investment with a much shorter ROI period.