Now most states are developing programs for the transition from carbohydrate energy sources to renewable energy sources. For this, the creation of wind turbines and solar power plants by individual citizens is stimulated, and the state buys such energy from the population at preferential rates. In my state, it is allowed to install solar power plants with a capacity of up to 30 kilowatts on the roofs of private houses, preferential tariffs without changing prices for energy sold to the state will operate until 2024. This is quite beneficial as there is no need to use additional rechargeable batteries, which used to be quite costly.