The article studies the technology of disinfection of drinking water using water purification systems using ultraviolet radiation, operating on autonomous energy sources based on solar panels. At the same time, the relative energy intensity of the purified water layer is scientifically substantiated using the finite ratio method, which allows minimizing energy consumption in the disinfection process. As a result, an in-depth calculation model of a solar photovoltaic device was determined, taking into account the influence of variable external factors, such as the intensity of solar radiation, ambient temperature, wind speed and orientation of solar panels on energy characteristics, and also the scientific and methodological foundations of electrotechnology for water disinfection using solar photovoltaic installation, which in turn revealed the need to optimize the power supply system taking into account local meteorological conditions.

Key words: purified water, electrodes, neutralization, solar photovoltaic installation, electrical stimulation, ultraviolet rays, conductivity, and resistivity of water, photocell.