A new heat-to-energy converter has reached a record efficiency of 44% – the average steam turbine manages about 35%, for comparison. This thermophotovoltaic cell is a major step on the way to ...

Carbon dioxide energy storage (CES) is an emerging compressed gas energy storage technology which offers high energy storage efficiency, flexibility in location, and low overall costs. This study ...

An international research team has developed and tested a hybrid energy system combining photovoltaic-thermal collectors, ...

An energy supplier in Finland has announced the upcoming construction of an underground seasonal thermal energy storage facility about the size of two Madison Square Gardens that could meet the ...

Industrial energy research stands at the threshold of a crucial transition. Combining advanced solar conversion with waste-heat valorization is emerging as ...

Researchers at Germany’s Frauhofer ISE have analyzed the performance of a residential heat pump connected to a rooftop PV system relying on battery storage and have found that this combination ...

Polar Night Energy’s heat storage system is a 23-foot-tall steel container filled with 100 tons of sand. (Polar Night Energy uses the lowest grade of sand that isn’t used in construction.) Hot air ...

Haley Mast is a freelance writer, fact-checker, and small organic farmer in the Columbia River Gorge. She enjoys gardening, reporting on environmental topics, and spending her time outside ...

Salt batteries can store summer heat to be used in winter, but which salt works best for the purpose? Salt batteries can store summer heat to be used in winter, but which salt works best for the ...