Nexol Photovolthermic AG has developed a new hybrid solar water heater for residential use, offering 1.5 kW of heating output and sizes ranging from 80 to 300 liters.

Essentially, it allows the water heater to get much hotter during times when solar energy is available, and lets it drop to lower values before running the heater on utility electricity during ...

The DC Sustainable Energy Utility (DCSEU), in partnership with the District Department of Energy and Environment (DOEE), has ...

To use this small greenhouse heater as part of a solar heating system, you’ll need a PV panel array and an inverter to convert direct current (DC ... and low-pressure water jets.