Storing Renewable Energy: Key To An All-Renewables Future

Gemasolar, the first commercial-scale plant in the world to apply central tower receiver and molten salt heat storage technology. (image via Torresol Energy)

The all-renewables future will require energy storage. Here we explore both current possibilities and technologies that might one day be practical. Read more →

Desert Pumped Hydro Proposal Gets Scrutiny

Project would turn former iron ore pits in near Joshua Tree into reservoirs (image via Google Maps)

A pumped hydro project at a former iron ore mine near Joshua Tree National Park is touted as a way to get more renewable energy on the grid. Read more →

Wind Storage Plan: Energy Island Or Fantasy Island?

energy island belgium

Belgium says it wants to build an offshore island with a below-sea-level reservoir in the middle that would be used to store power from offshore wind turbines. Read more →

Hydro Grows Around The World, And IEA Wants More

hydropower iea roadmap

A new International Energy Agency report supports the boom in hydropower around the world; in the U.S., the focus is on making existing facilities more efficient. Read more →

Low-Cost, Big-Time Energy Storage Gets A Go

pumped heat electricity storage, isentropic

A U.K. startup gets $22 million to test its system of Pumped Heat Electricity Storage, which would become wind power's best friend if it works. Read more →

Wind Power Saver Could Be The Pits

pumped hydro, Iron Range, Minnesota, wind power

A study suggests that old mining pits in Minnesota's Iron Range could be just right for using pumped hydro to boost the wind-power sector's production. Read more →