Gas price swings continue to dominate European electricity markets, with renewable energy’s growth failing to fully decouple power costs from fossil fuel volatility. In Germany, prices hit a record minus €413.88 per megawatt-hour on Sunday, reflecting oversupply from wind and solar. However, when renewables fall short, gas-fired plants become the default, driving prices skyward. The UK government’s new 45% to 55% windfall tax hike aims to incentivize renewable producers to lock in fixed prices via contracts for difference (CFDs), reducing exposure to gas shocks. Yet, gas still sets the wholesale price ~50% of the time in 2030, per government forecasts, as marginal pricing systems favor the costliest “marginal unit” needed to meet demand.

The EU debates overhauling market design, with proposals to subsidize gas plants or split markets into renewable/non-renewable pools. However, seven member states, including the Netherlands and Sweden, oppose changes, fearing inefficiencies and higher consumer prices. Industry groups like Eurelectric argue the current system is “basically well-functioning,” citing declining gas reliance as renewables expand and storage costs drop. European Commission President Ursula von der Leyen emphasized accelerating green investments to insulate markets from shocks, noting Spain’s 15% gas-fired generation versus Italy’s 89%.

UK Prime Minister Keir Starmer’s pledge to “break gas’s influence” faces structural hurdles. Octopus Energy advocates for zonal pricing to align industrial activity with cheap renewables, but the government rejected the idea last year, citing “unnecessary instability.” Meanwhile, the EU’s temporary measures—energy vouchers and fossil fuel price buffers—avoid market overhaul, focusing instead on crisis relief. Analysts stress that lasting change requires rethinking how markets price electricity when renewables dominate.

Critics warn that without systemic reforms, Europe risks remaining trapped on the “fossil fuel rollercoaster,” with gas prices dictating energy costs for years. The path forward hinges on balancing market stability with urgent decarbonization.