DC Heaters for PV Panels

Efficient Use of Energy from Photovoltaics. DC heaters for PV panels are an innovative solution allowing for direct heating of domestic hot water (DHW) using direct current (DC) produced by photovoltaic panels. This is an excellent way to maximize self-consumption and savings, especially in off-grid installations or as a supplement to on-grid systems. How do DC heaters work? The heater is connected directly to the photovoltaic panels, bypassing the inverter.