27JUL

German power climbs to EUR 156, spark flips

2 min read

09:24UTC

German day-ahead power cleared EUR 156/MWh on 16 July, up from EUR 126 two days earlier, as cooling demand under the heat dome dragged the clean spark spread from negative into positive.

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Key takeaway

A demand-driven spark spread turned Germany's CCGTs profitable, a margin a cooler week would knock out.

Germany day-ahead power cleared an average EUR 126/MWh on 14 July, EUR 132 on 15 July and EUR 156 on 16 July, climbing on cooling demand as the heat dome held ¹. Day-ahead is the price for next-day delivery; the clean spark spread is what a gas-fired CCGT earns after paying for its gas and its carbon. Run these clears through the standard 49.13% efficiency and 0.365 tCO2/MWh convention, against TTF near EUR 55 and EUA carbon near EUR 80, and the spread swings from roughly negative on 14 July to positive by 16 July.

German combined-cycle plants clear because the heat needs the megawatts, and the margin turning positive is a by-product of power outrunning its inputs rather than any softening in gas. That distinction is the whole trade: a spark spread that widens on power strength behaves differently from one that widens on cheap fuel, because it collapses the moment the heat breaks.

This eases rather than reverses the squeeze the desk logged on 9 July, when gas and power rose together and compressed the same spread . Then the pressure came from the fuel side; now it comes from demand. The CCGT stack is back in the money, but on a footing that a cooler week would knock straight out again.

Deep Analysis

In plain English

Gas-fired power stations in Germany make money on the gap between what they pay for gas and carbon permits and what they earn selling electricity. That gap, called the clean spark spread, had been slim or negative for weeks. This week electricity prices jumped because of the heat wave (people running air conditioning), while gas and carbon costs did not rise as much, so gas power plants suddenly became profitable to run again. It is less about gas getting cheaper and more about electricity getting more expensive faster than its ingredients did.

Deep Analysis

Root Causes

Germany's clean spark spread flips sign whenever day-ahead power climbs faster than its two input costs, gas (TTF) and carbon (EUA), move together. This window that happened because cooling demand pulled German day-ahead from EUR 126 to EUR 156/MWh across three sessions while TTF firmed only modestly and EUA actually eased back under EUR 81 (see the carbon event in this briefing), leaving the power side of the equation to do almost all the work.

The structural precondition is thin renewable output: when wind generation is low during a heat dome, as it has been through this window, German CCGT plant sets the marginal clearing price directly, so any demand spike shows up in the power price with little dilution from cheaper generation displacing it.

What could happen next?

Consequence
A positive clean spark spread gives German CCGT operators an incentive to run harder into the remaining heat window, which in turn supports gas demand even as storage injection slows elsewhere.

Sources:Trading Economics·energyprices.eu (ENTSO-E sourced)

Mentions:Germany →EUA →CCGT →TTF →

First Reported In

Update #27 · TTF hits EUR 55; the arb won't confirm it

Trading Economics· 16 Jul 2026

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Causes and effects

Caused by

Two shocks squeeze the spark, not FR-DE

Continues the 9 July gas-and-power squeeze on Germany's clean spark spread, which now turns positive rather than negative.

Occurred 9 Jul 2026

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This Event

German power climbs to EUR 156, spark flips

The spark margin turned positive because power outran its own fuel and carbon costs, not because gas got cheaper.

Led to

German gas plants priced out of merit

The positive clean spark spread recorded on 16 July inverted to negative by 20 July as gas and carbon costs outpaced power revenue.

Occurred 19 Jul 2026

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Spark stays negative, French edge erodes

The 16 July positive spark inverted again as gas and carbon outran day-ahead power.

Occurred 22 Jul 2026

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Different Perspectives

Slovakia

Slovakia says it dropped its hold-out on the 21st sanctions package only after Ursula von der Leyen personally signed written gas-price and supply guarantees. The Council of the European Union's own 17,238-character release on the package names neither Slovakia nor any guarantee, leaving Bratislava's account unconfirmed by the institutional record.

EU regulator on capacity mechanisms

Brussels is watching Germany's StromVKG first 4.5 GW capacity auction move toward its 8 September bid deadline without a resolved state-aid clearance for the 9 GW 2026 programme's gas-plant subsidies. A negative spark spread this deep on cheap gas strengthens the case for subsidised dispatchable capacity, the same case still awaiting a state-aid ruling.

French power exporters

French day-ahead cleared EUR 41.13/MWh on Sunday 26 July, EUR 43.09 below Germany, on wind more than doubling and a demand trough, not on any nuclear recovery. The desk expects the discount to hold only as long as French wind and weekend demand repeat, not as a durable nuclear-cost advantage.

European gas storage operator

A storage operator stopped bidding for prompt TTF cargoes on 21 July, reading the strike-halt unwind as the start of a fuel-side correction rather than a floor. It expects the gap between prompt and forward gas to keep narrowing as the war premium continues leaving the curve.

German gas-fired power fleet

German gas-fired plants cut output from 4.37 GW to 2.85 GW between 24 and 27 July, even as TTF fell 8 per cent, because below roughly minus EUR 40/MWh the fuel price stopped deciding dispatch. The fleet expects no relief until wind eases or StromVKG's first 4.5 GW auction adds capacity.

French industrial power consumers

France's day-ahead discount to Germany has nearly closed as TTF and EUA rise together on both sides of the border, eroding the arbitrage French industry relied on through the summer. A standing negative spark removes the German demand buffer that kept that spread wide.