Considered the prospect of using solar energy in the Rostov region. Calculations of energy consumption for hot water needs, parameters of solar collectors and volume of the storage tank. Considered seasonal and year-round use of solar energy. It is established that it is more profitable to use flat solar collectors in the Rostov region for seasonal use.

Keywords: solar energy, solar collector, energy efficiency, energy saving, solar radiation, the correction factor, heat exchanger, the demand