European gas prices softened in Week 22, but not enough to break the link between gas and power prices in Southern Europe. TTF futures averaged €46.56/MWh, down 6.7% week-on-week, after peaking at €47.64/MWh on 26 May and closing at €46.00/MWh on 29 May. At publication, the one-month TTF forward was trading at €49.200/MWh, equivalent to $16.77/MMBtu. As reported by Electricity.trade, the decline helped market sentiment but did not remove the gas premium embedded in power prices where CCGTs remained marginal.
Italy was the clearest example. Despite stronger imports and improved hydro generation, Italian power prices rose 6.3%to €123.58/MWh. Gas-fired generation increased 25.3%, while total thermal generation rose 32.6%. This shows that a lower TTF price is not the same as a low TTF price. At around €46–49/MWh, gas still implies a high short-run cost for efficient CCGT plants once conversion efficiency, carbon costs and operational margins are included.
Greece and Romania also increased thermal generation, largely through gas-fired output. Their price outcomes were different because their broader system balances were different. Greece had stronger renewables, higher hydro and rising exports, helping keep prices at €86.77/MWh. Romania’s price declined 5.1% to €103.46/MWh, but it still remained above the Greek and Bulgarian levels. The common thread is that gas remained an important marginal reference even when country-level price movements varied.
The gas market itself remained sensitive to geopolitical risk. The report noted that prices eased after improved sentiment around the Strait of Hormuz, but also remained elevated compared with normal seasonal levels because the market continued to price uncertainty around global LNG supply balances. LNG inflows were stable or recovering in parts of Southern Europe, but this did not translate into cheap gas. Europe was still competing in a global LNG market where Asian demand, Middle East supply risk and storage strategy all influenced forward pricing.
For power buyers, the message is uncomfortable. A week-on-week fall in TTF can reduce pressure, but procurement risk remains high when the absolute gas price is still elevated. Industrial consumers exposed to Italian, Greek, Romanian or broader SEE prices cannot assume that softer gas automatically delivers cheap electricity. The real question is whether gas plants are marginal during the hours they consume or hedge.
For generators, the gas-power link preserves value for flexible thermal assets, especially in systems where wind underperforms or evening demand tightens. For battery investors, it supports the arbitrage case because gas-linked evening prices can remain high even when solar depresses midday prices.
Week 22 therefore showed a market where gas was softer but still decisive. TTF at €46.56/MWh was not low enough to reset Southern European power economics. It merely reduced the pressure in a system still priced around scarcity, flexibility and fuel risk.
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