Ofgem Proposes Energy Market Charge to Address Winter Volatility

Ofgem, the United Kingdom's energy regulator, has launched a consultation on a proposal to reactivate a "market stabilisation charge" that would require energy firms to pay a consumer's former supplier when that customer switches providers. The energy watchdog stated on Monday, October 12, 2026, that the measure is intended to protect energy suppliers from financial losses if wholesale prices fall sharply and customers leave in large numbers. The proposal could be implemented as early as November 2026.

The regulator previously utilized this mechanism from April 2022 to March 2024 following the market volatility caused by the invasion of Ukraine. Ofgem officials stated the reactivation is a response to expected volatility this winter, following an August announcement that the energy price cap would rise by 4% in October 2026 due to conflict in the Middle East. Neil Kenward, Ofgem’s interim director general of markets, said the charge helps maintain a resilient market and protects consumers from costs associated with market instability.

Martin Lewis, founder of MoneySavingExpert, has criticized the plan, characterizing it as a "switching penalty" that could make new tariffs for those who change providers more expensive. Lewis argued that the move would dampen competition and protect energy firm profits even when they are not at risk of insolvency. While Ofgem stated the charge would only be triggered if wholesale prices fall significantly, Lewis noted that any potential savings for consumers from falling rates would be reduced by these payments between firms.

The scale of the impact involves the entire UK energy market, where the regulator already increased the price cap by 4% starting in October 2026. While Ofgem did not report a specific pound-per-household fee, the mechanism is designed to prevent a repeat of the "domino risk" seen in the early 2020s when multiple suppliers went bust. For a household, this means that even if global gas prices fall, the reduction they see in their monthly energy bill might be smaller or delayed because the new supplier must cover the stabilization payment.

The knock-on effect of this policy is a potential reduction in market competition, as lower-priced deals may be less frequent or less aggressive. Ofgem maintains that the measure is necessary to ensure suppliers can secure energy without taking "unsustainable risks" during a winter of expected volatility. The Department for Energy Security and Net Zero stated it is working with the regulator on the plan. The consultation process is currently underway, and a final decision on whether to implement the charge by November 2026 is expected following the review of stakeholder feedback.