The purpose of the award-winning SOLiC 200 is to detect and offer your surplus generated power to a standard 3kW domestic immersion heater. The Solis 200 works seamlessly with your photovoltaic panels, or other micro generation system, without the need for any user intervention. The Solic 200 is a proportional controller, detecting when your house is exporting power back to the grid and offering an equal amount of power to your immersion heater circuit. For example; If your house is using 500W and the solar panels are generating 700W, the Solic 200 will automatically offer 200W to the immersion circuit. The Solic 200 checks export levels continuously, striving to keep this export amount at zero.