The variable nature of wind and solar power means storing energy is a huge part of the fight to mitigate climate change In a world increasingly anxious about climate change, the surge in the generation of renewable energy over the past 20 years offers a sliver of hope. But the variable nature of wind and solar power means that storing energy until consumers need it has become the next big challenge. And so, large-scale battery installations are springing up across electricity grids around the world, to make them more flexible. In 2017, more than 1GW of energy storage capacity was added around the world – a record, yes, but still a drop in the ocean of global energy demand.
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