Ofgem is consulting on reactivating the market stabilisation charge (MSC), a mechanism that would force energy suppliers offering cheaper deals to pay rival firms if wholesale gas and electricity prices drop sharply. The trigger: a wholesale price fall of more than 10%. The penalty: the gaining supplier hands 85% of the wholesale price drop back to the losing supplier. The stated justification is systemic stability. The structural effect is a competition tax. The mechanism targets a real problem — suppliers that buy energy forward at high prices face losses if wholesale rates crash and customers switch to cheaper competitors who bought later or more nimbly. More than 30 energy companies collapsed between 2021 and 2023 when Russia's invasion of Ukraine sent wholesale prices haywire, and the cleanup costs landed on consumers through the supplier of last resort levy. Ofgem's fear is a repeat scenario this winter, with Middle East volatility creating fresh price swings. But the market conditions are materially different from 2022. As Martin Lewis pointed out, energy suppliers have posted significant profits since the crisis. The sector is not in the same fragile state that preceded the wave of collapses. The MSC is being proposed not because suppliers are failing now, but because they might, in a scenario that requires both a sharp wholesale price drop and a mass customer switching event — a double contingency that is possible but not the base case. The cost distribution is stark. Households are already paying the highest energy charges in three years: £1,723 annually under the current price cap, rising to a forecast £1,872 in January. The MSC does not directly increase bills, but it blunts the mechanism by which bills could fall. If wholesale prices drop, the charge prevents aggressive competitors from passing the full saving to consumers. Lewis calls it a "switching penalty" — and he is structurally correct. The 85% clawback rate means only 15% of a wholesale price decline can flow through to a cheaper fixed deal. Ofgem's Neil Kenward frames the MSC as protecting consumers from the costs of supplier failure. This is accurate in the narrow sense — supplier collapses do cost the public money. But it elides the question of who should bear hedging risk. Under the MSC, the answer is consumers, who forfeit the competitive benefit of falling prices to insulate suppliers from the consequences of their purchasing strategies. Suppliers are effectively given an insurance policy against customer loss, funded by the customers themselves through forgone savings. The twenty-year logic of this mechanism is corrosive. If activated regularly during volatile periods, the MSC teaches suppliers that hedging mistakes will be socialised, that customer retention need not be earned through price competitiveness, and that the regulator will intervene to dampen the market's natural correction mechanism. It is regulatory moral hazard with a consumer-protection label. The consultation remains open, and the chancellor is separately planning interventions for poorer households in the budget. But the structural question is whether Ofgem is regulating for systemic resilience or for incumbent comfort — and the 85% clawback rate suggests the latter.
