Wind turbine maker Vestas looks at expanding into energy storage
Reuters: Denmark's Vestas, the world's largest wind turbine maker, is keen to expand into areas such as energy storage to increase the global use of wind power and bring costs down.
German institute successfully tests underwater energy storage sphere
Megan Geuss for ArsTechnica: Pumped storage is a decades-old technology with a relatively simple concept: When electricity is cheap and plentiful, use it to pump water up into a reservoir above a turbine, and when electricity is scarce and expensive, send that pumped water down through a turbine to generate more power. Often, these pumped storage facilities are auxiliary to other electricity-generating systems, and they serve to smooth out fluctuations in the amount of power on the grid.
A German research institute has spent years trying to tailor pumped storage to ocean environments. Recently, the institute completed a successful four-week pilot test using a hollow concrete sphere that it placed on the bottom of Lake Constance, a body of water at the foot of the Alps. The sphere has a diameter of three meters and contains a pump and a turbine. Much like traditional pumped storage, when electricity is cheap, water can be pumped out of the sphere, and when it’s scarce, water can be let into the sphere to move the turbine and generate electricity. Cont'd...
Booming Business : Energy Harvesting: Off-Grid Renewable Power For Devices, Vehicles, Structures 2015-2025
Energy Harvesting: Off-grid Renewable Power for Devices, Vehicles, Structures 2015-2025 :Market Segments, Size, Trend and Market projections for upcoming years
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