(UWIRE) -- In spring 2007, University of California Berkeley Energy and Resources Group professor Ashok Gadgil challenged students in his Design for Sustainable Communities class to come up with an ...

German startup Nexol Photovolthermic AG has unveiled a 1,500 W water heater that can use photovoltaic ... In the case of low solar radiation, the intelligent system reheats the upper zone of ...

That's where heating water could help—by soaking up excess solar. To do real-world testing, we enrolled 18,000 South Australian households with smart meters and electric water heaters.

Uniform Energy Factor refers to a water heater's efficiency when run under simulated heavy use conditions for a 24-hour period. Electric Tanked is part of the Water Heaters test program at ...

IIT Bombay Develops Lotus Leaf-Like Solar Evaporators for Sustainable Desalination - In a breakthrough that could ...