10 Ways Wind and Solar Power Shielded the UK from £1.7 Billion in Gas Costs Since the Iran Conflict

The UK’s rapid shift to renewable energy has delivered a massive financial buffer during the ongoing Iran conflict. Since late February 2026, when US and Israeli strikes triggered a new wave of global instability, wind and solar farms across Great Britain have generated record amounts of electricity. This clean power surge has slashed the need for expensive gas imports, saving the nation an estimated £1.7 billion. Below, we break down the key data points and milestones that highlight how renewables are transforming the country’s energy security and keeping bills lower.

1. £1.7 Billion Saved on Gas Imports

Since the Iran war began, the UK has avoided importing 41 terawatt hours (TWh) of natural gas. At the elevated prices triggered by the conflict, that volume of gas—roughly equivalent to 34 tankers of liquefied natural gas (LNG)—would have cost around £1.7 billion. This saving directly stems from the record output of wind and solar, which replaced the need to buy gas on volatile international markets.

2. Record 21 TWh from Wind and Solar

Between March and May 2026, wind and solar generated a record 21 TWh of electricity on the island of Great Britain (England, Scotland, and Wales). This is the highest ever recorded for a three-month period. The surge has been driven by both new capacity and favourable weather conditions, pushing clean energy far beyond previous highs.

3. Gas Generation Fell by a Third Year‑on‑Year

Thanks to the renewable boost, electricity production from natural gas dropped by nearly a third compared to the same period in 2025. In both March and April 2026, gas output reached its lowest levels ever recorded for those months. This sharp decline shows how quickly renewables can displace fossil fuels when they are operating at full throttle.

4. 34 Fewer LNG Tankers Docking

The 41 TWh of avoided gas imports is equivalent to 34 cargoes of liquefied natural gas. Each tanker carries enough LNG to power about 1.2 million homes for a month. By dodging these shipments, the UK has not only saved money but also reduced its exposure to price spikes and supply disruptions in the global LNG market.

5. Wind and Solar Outpace Fossil Fuels 2:1

Since the start of the Iran war, wind and solar have generated more than twice as much electricity as all fossil fuels combined. This marks a dramatic reversal from just a decade ago, when fossil fuels produced over four times the output of renewables. The energy mix has truly flipped.

6. 15 Consecutive Months of Clean Energy Dominance

For a record 15 months in a row, wind and solar have produced more electricity than gas and coal together. This streak includes the winter season of 2025–2026—the first time ever that renewables have outpaced fossil fuels throughout the colder months, when demand typically peaks and solar output is lower.

7. Gas Sets Prices 25% Less Often

In March and April 2026, natural gas determined the wholesale electricity price roughly 25% less frequently than during the same months in 2022, when Russia’s invasion of Ukraine sent fossil‑fuel costs soaring. The reduced reliance on gas means that price‑setting power is shifting to cheaper renewables, helping to stabilise bills.

8. Record‑Low Gas Generation in March and April

Both March and April 2026 set new lows for monthly gas‑fired electricity generation. The previous record lows occurred back in 2020 during the pandemic, but the current dip is driven by sustained renewable output rather than a demand collapse. This structural change points to a more resilient electricity system.

9. Near‑100% Zero‑Carbon Grid Moment

On 22 April 2026, for half an hour between 15:30 and 16:00, a staggering 98.8% of the electricity flowing into Great Britain’s main transmission grid came from zero‑carbon sources—a new record. This near‑total clean grid event showcases what is possible when wind, solar, nuclear, and hydro work in concert.

10. Winter 2025–26: First Full Season Renewables Beat Fossil Fuels

The 15‑month clean energy streak included the entire winter season (December 2025–February 2026). This is the first winter on record where wind and solar generated more electricity than gas and coal combined. It proves that renewables can reliably meet high demand even during the darkest, stillest months, reducing the UK’s vulnerability to gas price shocks.

The evidence is clear: the UK’s investment in wind and solar is paying off in real time. By cutting gas imports by 41 TWh and saving £1.7 billion, renewables have provided a crucial buffer during a global crisis. As the Iran conflict continues, the trend toward cheaper, cleaner power is only accelerating—a lesson in energy independence that will shape the country’s future.