Ireland’s electricity is some of the most expensive in Europe, with generation still highly reliant on fossil fuels. While big-ticket national infrastructure projects are undoubtedly needed to modernise Ireland’s grid and reduce carbon emissions, smaller changes to the market structures have the potential to make a lot of difference, too. For price watchers and environmentalists alike, getting more batteries on the grid has been a clear solution to both problems. Investors, meanwhile, are eying up new profits. Batteries absorb excess renewable energy that is currently being wasted, and release it to displace gas-generated electricity at peak times when renewable generation…

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