The first, a £17m demonstration scheme, is targeted at companies looking to fine-tune and test large-scale concepts currently in the early stages of development.
A further £3m will be up for grabs as part of a component research and feasibility study competition, exploring integration of energy storage technology onto the UK grid.
"As we move towards a low carbon future, the ability to store energy when we don't need it for times when we do will become even more important, helping us balance our electricity network and use more clean green power," says energy and climate change minister Greg Barker.
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