Methods of electricity storage are considered essential in grids that have large proportions of wind capacity. This is because, surprisingly, winds have been known to quieten down a bit from time to time.
Some people take this fact too far. For example, there is the “Northern European Winter High Pressure” lobby, who continue to insist, in a number of forums, that low aerial flow entirely compromises wind energy expansion, just because there are several days in December or January that might be a little flat.
If I had a eurocent for every time a Climate Change denier-sceptic told me that if I really, truly believe that Carbon Dioxide causes Global Warming I should just stop breathing…well, I’d be rich enough now to afford to buy the whole of Belgium, or at least most of economically-depressed Wallonia. Mmm…Waffles.
But seriously, holding your breath in the form of Compressed Air Energy Storage (CAES) is one of the big flashing signs for the future of ReSmoothing, smoothing Renewable Energy supply, that is.