Right now the UK makes up the volatility of its heavy reliance on wind with LNG. So this isn't exactly a hedge against gas shortage.
* 15% of British power generation is already de-linked from the gas power price. This is from 10 GW of operational renewable capacity currently covered by the price-setting Contracts for Difference scheme.
* A third (36%) of power generation in Britain will be priced independently of gas by 2030, according to forecasts of generation from the Contracts for Difference scheme. Up to 36 GW of competitively-priced new wind and solar is under development by 2032 through the scheme.
* Hours where gas was below 20% of Britain’s electricity mix averaged £60/MWh in 2025, compared to £130/MWh in hours where gas made up more than 50% of the mix.
* The gas share of power generation fell to a second record monthly low in a row in Britain in April 2026. The gas share in both March (27%) and April (19%) was the lowest per month in over a decade. In March, wind supplied a monthly record 42% of all power generation.
(As more wind, solar, batteries, and transmission are deployed in the UK, fossil gas power share will continue to decline until pushed out of the generation mix)
Then in UK somebody calculated that a house needs 1MWh battery to last over winter using only solar panels that a typical suburb house can install. In 5-10 years that would cost 40K USD making it rather realistic to have. This ignore availability of industrial-scale wind which is the strongest in winter.