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European Energy Markets
18MAY

FR-DE spread to EUR 37 at higher floors

4 min read
11:11UTC

The France-Germany day-ahead spread compressed to EUR 37.47/MWh on 7 May from EUR 55.75 on 28 April, but only because both markets rose sharply in absolute terms.

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EconomicDeveloping
Key takeaway

Spread compression at higher absolute levels means more borders are now gas-set, not fewer.

The France-Germany day-ahead spread compressed to EUR 37.47/MWh on 7 May, ENTSO-E data via euenergy.live shows, down from EUR 55.75/MWh on 28 April . Germany cleared at EUR 136.03/MWh, up 11% day-on-day; France cleared at EUR 98.56/MWh, down 13%. Italy reached EUR 135.86/MWh near parity with Germany, the Netherlands cleared at EUR 130.51/MWh, and Spain held the lowest major-market clearing at EUR 86.90/MWh.

ENTSO-E is the European Network of Transmission System Operators for Electricity, the Brussels-based association publishing real-time and day-ahead electricity market data. The day-ahead clearing price is the marginal-unit cost set in each country's hourly auction, and gas peaker plants are the marginal unit across most of Continental Europe outside Spain and the Nordics.

France's day-ahead has gone from EUR 21.80/MWh on 28 April to EUR 98.56 on 7 May, a 352% jump; Germany has risen from EUR 77.55 to EUR 136.03, up 75%. The narrowing therefore reflects gas-set clearing across more borders, not reduced gas exposure, and traders pricing the EUR 55.75 print as relief now reprice relief itself at the higher floor.

EDF's April nuclear output of 29.3 TWh (+2.2 TWh year-on-year) is still suppressing French clearing relative to Germany, but the buffer is doing less work as renewables vary and gas peakers fill gaps. Flamanville-3, EDF's 1.6 GW EPR reactor in Normandy, enters its first one-year overhaul from September 2026, taking that buffer down further at the cycle's most exposed point. The Italy-Spain spread sits at EUR 48.96/MWh on 7 May, up from EUR 24.54 on 17 April. Spread geometry is widening at higher floors across the Continental map.

Deep Analysis

In plain English

Electricity prices in Europe are set by what is called the 'merit order': power stations compete to supply each hour, and the most expensive source that is needed to meet demand sets the price for everyone. Usually, solar and wind are cheapest, nuclear second, and gas-fired power stations most expensive. When gas stations end up setting the price, because there is not enough wind, solar, or nuclear available, the whole market clears at a much higher level. On 7 May, gas stations were setting the price across Germany, Italy, and the Netherlands simultaneously. That is why Germany hit EUR 136/MWh and Italy EUR 135/MWh on the same day. France has more nuclear power, which is cheaper, so it cleared lower at EUR 98/MWh. But even France is increasingly relying on expensive gas stations on days when its nuclear plants are not running at full output. When more countries hit the gas price simultaneously, the effect goes beyond a single bad day: the floor on which all Continental power trades rises each time gas sets the marginal clearing price across multiple borders in the same hour.

Deep Analysis
Root Causes

The FR-DE spread compression from EUR 55.75 to EUR 37.47 reflects two markets converging toward the same marginal unit, gas peakers, rather than France remaining on its lower-cost nuclear-set merit order. France's day-ahead move from EUR 21.80 to EUR 98.56 over ten days reflects the same gas-peaker step-in on days when nuclear output variance and renewable intermittency create net demand above nuclear clearing capacity.

EDF's April nuclear output of 29.3 TWh (+2.2 TWh year-on-year) remains solid, but 29.3 TWh/month equates to roughly 40.7 GW of average output against nameplate capacity of 63 GW, meaning France's nuclear fleet is running at 65% average availability. On low-wind days, the margin between nuclear output and demand gets cleared by gas peakers that have a much higher marginal cost, pulling French clearing toward German clearing and compressing the spread.

The Italy-Spain spread widening from EUR 24.54 to EUR 48.96 since 17 April reflects Spain's persistent partial renewables insulation versus the Italian market, which is structurally more gas-dependent. The widening signals that Spain's wind and solar capacity maintains its pricing advantage on higher-price days even as the absolute floor rises across the rest of the map.

What could happen next?
  • Consequence

    The Italy-Spain spread widening from EUR 24.54 to EUR 48.96 since 17 April confirms Spain's renewables base provides structural price protection even at elevated absolute levels, a signal relevant to industrial relocation decisions currently in progress across EU chemical and aluminium sectors.

    Medium term · 0.77
  • Risk

    Flamanville-3's September 2026 overhaul removes approximately 1.6 GW from France's nuclear fleet at the heating-season onset, increasing French clearing's gas-peaker dependence by roughly 38 GWh/day on average output days and pulling FR-DE spread convergence forward.

    Medium term · 0.82
  • Consequence

    Simultaneous gas-set clearing across Germany, Italy, and the Netherlands on 7 May signals the Continental power map is operating in a structural gas-floor pricing state, where renewable variability and nuclear oscillation alone are insufficient to prevent high-cost marginal clearing.

    Short term · 0.7
Sources:euenergy.live (relaying ENTSO-E data)·euenergy.live (relaying ENTSO-E data)·EDF
Mentions:France →Germany →EDF →Italy →Spain →Netherlands →ENTSOG →Flamanville-3 →Switzerland →Austria →
First Reported In

Update #8 · Storage 34.3 as 12 May test nears; Hammerfest silent

euenergy.live (relaying ENTSO-E data)· 8 May 2026
Read original →
Causes and effects
Caused by
France-Germany May power spread doubles record
FR-DE spread compressed from EUR 55.75 on 28 April (ID:2885) to EUR 37.47 on 7 May as both markets rose in absolute terms
Occurred 28 Apr 2026
Read story →
This Event
FR-DE spread to EUR 37 at higher floors
Spread narrowing here is gas-set clearing across more borders, not falling gas exposure.
Led to
France swings 88% as FR-DE spread halves
FR-DE spread compressed from EUR 37.47 on 7 May to EUR 23.68 on 12 May, continuing the post-28 April compression trajectory.
Occurred 12 May 2026
Read story →
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