Helm Talks - energy climate infrastructure & more26 Aug 2025

Why electricity prices are so high and why renewables are not cheap

Why when solar and wind are supposed to be nine times cheaper than gas are electricity prices in the UK amongst the highest in the world? Why when the UK is supposed to be a fast track to this promised cheap net zero electricity by 2030 are large industrial users struggling? Why is Grangemouth in trouble? Why is the steel industry in such bad shape that it has be bailed out and nationalised? Why have fertiliser and petrochemical companies and now biofuels all reached for the exit? The UK’s dash for renewables is supposed to be creating a clean-energy superpower, based upon “home-grown” energy, whereas in fact almost all of the supply chain is imported. Renewables are not cheap when their system costs are properly measured. Marginal costs might be near zero, but a renewables-based system already needs almost twice the capacity as the old coal plus gas plus nuclear system, even though demand has fallen. To produce roughly the same amount of firm power, a renewables-based system already requires lots of new transmission lines, which were not needed in the past for the same demand, as well as a host of upgrades. It requires batteries and storage and lots of back-up gas standing mostly idle, as well relying heavily on imported electricity via the interconnectors to keep the lights on. Renewables are not like-for-like and the wholesale price for firm power should not be compared with the contract for differences (CfD) price for intermittent generation. The nine times cheaper claim relies on leaving almost all the relevant costs out of the comparison. It's time for some energy and climate realism and some honesty about the costs and consequences of the net zero 2030 target.

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