The article discusses the issues of increasing the efficiency of solar energy devices of low power, which shows the results of providing constant high power in solar power plants of low power four-stroke lifting wide pulses. In the course of the work, the types and elements of low-power solar power plants were analyzed, and a computer model was developed on the basis of these data. The results of the change in the output voltage of the solar power plant depending on the position of the sun, the current-voltage characteristic of the solar module of the MCW series with a power of 120 W.