With the German power contract much lower at 140 euros/MWh on Tuesday, the pressure for reform has eased, although the Commission said it needed to protect consumers from future volatility.
The proposals leave in place the current system of setting energy prices in Europe's wholesale markets, which the Commission said had helped to prevent shortages during last year's energy crisis.
But the EU executive put forward ways to reduce the impact of short-term market volatility on consumer bills.
If energy prices spike to extreme levels - defined as wholesale power price spikes of more than 70 per cent, among other conditions - the European Commission said governments would be allowed to temporarily fix the price for up to 80 per cent of consumers' electricity.
Other proposals would give bill-payers the right to request fixed-price contracts from large electricity suppliers, and countries would be obliged to prevent suppliers cutting off vulnerable consumers who cannot pay their electricity bills.
After soaring energy prices led to insolvencies and forced governments to prop up companies this winter, the proposals presented on Tuesday require countries to appoint a "supplier of last resort" so consumers have a back-up if their energy supplier fails.
The proposals also aim to push gas out of Europe's energy mix faster, by supporting investments in renewable energy, energy storage, and more local, flexible energy sources to enable the bloc to quit Russian fossil fuels and meet climate change goals.
In addition, the Commission proposed incentives for long-term contracts that lock in stable power prices.
For example, EU countries' state support for new investments in wind, solar, hydropower, geothermal and nuclear electricity must be done through a two-way contract for difference (CfD).
CfDs pay generators a fixed "strike price" for their electricity, regardless of the price on short-term energy markets.
Countries would also offer state guarantees to encourage power purchase agreements - another type of long-term contract that would allow consumers to buy electricity directly from an electricity generator, rather than relying on the market.
French finance minister Bruno Le Maire called the proposals a "solid basis to start discussions" and said they should be adopted this year.
A French energy ministry source said the EU proposals aligned with measures sought by France, including CfDs for investments in nuclear power plants.
The 27 EU countries and the European Parliament must negotiate and approve the reforms.
EU countries had disagreed on how big the overhaul should be, with Denmark, Germany and Latvia among those opposed to major changes, while states including Greece said a more radical redesign was needed to stop gas prices triggering power price spikes.