Energy Storage

Natural gas is getting edged out of power markets across the U.S. by two energy sources that, together, are proving to be an unbeatable mix: solar and batteries. In just the latest example, First Solar Inc. won a power contract to supply Arizona’s biggest utility when electricity demand on its system typically peaks, between 3 p.m. and 8 p.m. The panel maker beat out bids from even power plants burning cheap gas by proposing to build a 65-megawatt solar farm that will, in turn, feed a 50-megawatt battery system. It’s a powerful combination for meeting peak demand because of when the sun shines. Here’s how it’ll work: The panels will generate solar power when the sun’s out to charge the batteries. The utility will draw on those batteries as the sun starts to set and demand starts to rise. Just last week, NextEra Energy Inc.’s Florida utility similarly installed a battery system that’ll back up a solar farm and boost generation. In California, regulators have called on PG&E Corp. to use batteries or other non-fossil fuel resources instead of supplies from gas-fired plants to meet peak demand. Federal regulators plan to take up a proposed rule on Thursday that could remove barriers to energy storage participating more in wholesale power markets.

Energy Voice 13th Feb 2018 read more »

Carmaker Honda is working with green energy supplier Good Energy and Salford University to investigate how vehicle-to-grid (V2G) technology could stabilise the national grid and cut costs for households. The researchers, working in partnership with smart energy firm Upside Energy, will examine energy flows around a normal home that uses an electric car, to investigate how car batteries could be used by the grid to store and export energy in response to national demand.

Business Green 12th Feb 2018 read more »

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Published: 13 February 2018