The Fronius Ohmpilot is a consumption regulator designed to use excess solar energy to heat water. Thanks to the continuous adjustment of the power from 0 to 9 kW, the surplus photovoltaic current can be used very efficiently to supply household consumers. The Fronius Ohmpilot is used for the intelligent supply of heating elements, for the supply of hot water in boilers and buffer tanks, but it can also be used for infrared heating or electric radiators. The Fronius Ohmpilot can thus offer a home the possibility of producing domestic hot water using surplus photovoltaic energy, resulting in a reduction in the household's CO2 emissions and less wear and tear on the main heating system.