Yes, it was ultimately Centrica’s decision to shut Rough down but the Government could have intervened in 2017 with funding to keep the facility running. Liz Truss was Chief Secretary to the Treasury at the time.
This says it all really:
www.theguardian.com/business/nils-pratley-on-finance/2022/aug/31/the-rough-gas-storage-tale-is-typical-of-tory-ministers-complacency
Extract
But why was a strategic asset, capable of holding 10 days’ worth of UK gas supplies, semi-abandoned in the first place? Well, Centrica at the time cited losses from Rough, including £329m in 2015, and said design and safety factors weighed against funding a £1bn overhaul. So the question is really why the government of the day didn’t negotiate a version of the deal that Kwarteng is [now] rightly pursuing.
For the answer, look at the formal response in February 2019 from Claire Perry, minister responsible for energy security at the time, to questions from the business select committee. It is complacency in policymaking writ large. The government’s rough view on Rough’s closure was that there was nothing to worry about because the market would provide.
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To be fair, the 2017-20 refrain merely reflected the misguided thinking of the previous decade. In 2010, a report from the energy and climate change select committee had recommended doubling UK gas storage – from levels when Rough was still working at full pelt – but it was simply ignored. The main worry was about adding a few quid to household bills, and never mind the fact that most European countries store more.