Sir, In his analysis of the future electricity sector, my friend Andrew Warren (letter, Apr 1) has forgotten the net-zero economy target that is enshrined in law for 2050. If we electrify both heat and ground transport we will need much more electricity, reversing the decline seen over recent years. In the absence of any means of storing electrical energy at the metropolitan scale for months, we will need something to back up when there is no wind or sun, and if not fossil fuels, then nuclear.
Michael Kelly FRS FREng
Emeritus professor of technology, University of Cambridge
Sir, We are seeing the results of more than 20 years of disastrous decisions made by politicians and civil servants concerning our vital energy infrastructure
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