MediumVI Energy Politics & Supply Security20 October 2026, Tuesday
Greek wholesale power price hits its highest level since 2023
Greece's day-ahead electricity price for 20 October delivery averaged €247.82 per megawatt-hour, up 125.39% since July. The driver is TTF gas, which has climbed to around €89–90.
On Greece's day-ahead electricity market, the average price for 20 October delivery rose to €247.82 per megawatt-hour, the highest level since 2023. The previous day's average was €232.43, and the evening peak reached €406.48. According to the Greek press, the wholesale price has risen 125.39% in a rally that began in July.
Gas sets the price. TTF, Europe's benchmark, has risen to around €89–90 per megawatt-hour, almost 3 times its level a year ago. Gas plants supply up to 40% of Greek generation; on 20 October renewables took a 42.84% share and gas 38.91%. Prices follow marginal pricing, meaning the most expensive generator running in a given hour sets the rate. That is why a 42.84% renewable share is not enough to pull the average down.
According to euenergy.live, the price eased to €240.56 on 21 October and to €201.29 for 22 October delivery. Greek City Times reported that the government will renew its request for more fiscal flexibility for targeted support at the 9 November Eurogroup meeting. According to the same report, prices staying above €240 through the winter are seen as a burden households could not carry without support.
Talay assessment
Bottom line
The Greek spike shows gas prices feeding through to electricity bills in Europe once more. The pullback to €201.29 on 22 October reflects day-to-day swings in renewable output rather than a trend. Athens seeking fiscal flexibility on 9 November instead of a common EU instrument shows that energy support will land on national budgets.
Likely effects
- Household inflationNegative1–6 months
The 125.39% rise in wholesale prices since July will pass through November tariffs into household electricity bills and inflation.
- Public financesNegative1–6 months
The fiscal flexibility sought at the 9 November Eurogroup puts energy support at odds with EU deficit rules and raises borrowing needs.
- Renewable investmentPositive6 months+
With gas nearly tripling in a year, the economics of solar and wind, now at a 42.84% share of generation, improve.
Possibilities, ranked
- 1Price holds in €200–250 band55%
TTF stays around €85–90 and power prices swing within this band depending on wind and solar output.
Watch: TTF holding below €90/MWh and November retail tariffs
- 2Price breaks above €25030%
Cold, windless weather lifts the gas share and evening peaks frequently exceed €400.
Watch: TTF rising above €90/MWh and the gas share exceeding 40%
- 3Retreat15%
A fall in gas prices pulls electricity below €200.
Watch: TTF dropping below €80/MWh
Probabilities are calibrated judgement based on the sources, not measurement, and are revised as new information arrives. Not investment advice.
Market reaction
Indicators affected
- Greek day-ahead power▲ €247.82/MWh
- Rise since July▲ +125.39%
- Evening peak▲ €406.48/MWh