As global energy demand accelerates, one truth remains underappreciated: heat is the largest end use of energy. Today, more than 50 percent of global final energy consumption is dedicated to ...

Lithium-ion batteries dominate headlines, but most global energy storage relies on simpler methods. These methods include pumped hydro, compressed air, gravity, and thermal storage using sand or rock.

Researchers from India’s National Institute of Technology (NIT) Kurukshetra and the National Institute of Solar Energy (NISE) Gurugram have created a prototype solar geyser system that uses ordinary ...

A research group from Ghana has developed a solar PV-powered steam cooker (ISESC) with sand-based thermal energy storage (TES). “The potential of sand, given its thermal stability and low cost, has ...

A Finnish-Swedish consortium has designed a hybrid system that uses photovoltaics and solar thermal energy separately to provide steam to industrial facilities. The PV unit is coupled to a sand-based ...

For more than a century, fossil fuel companies have drilled oil and gas wells to increase the production, consumption, and export of fossil fuels. These wells are often abandoned once they are no ...