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Iran Conflict 2026
21SEP

EUA carbon breaks €81 a tonne

2 min read
15:34UTC

The EU December carbon allowance ran to about €81.35 a tonne by Monday, its highest since February, stacking fresh cost onto gas-fired generation.

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Key takeaway

EU carbon at about €81 a tonne adds fresh pressure on the clean spark spread.

EUA December carbon allowances broke €81/tonne on Monday 13 July for the first time since February, climbing from a flat €79.04 settlement on Friday 10 July to about €81.35 on a market-data snapshot around 13 July⁠1. EUA is the EU Emissions Trading System allowance that gas- and coal-fired generators surrender for each tonne of carbon dioxide they burn, so its price feeds straight into the marginal cost of thermal power.

The climb extends an established run rather than opening a new one. EUA first cleared €80 on 25 June and settled €80.17 on 30 June, so the €81 print is the next leg up, not a break from range. Treat the exact 81.35 level with some caution: it rests on a dated snapshot rather than a confirmed exchange settle, while the €79.04 baseline of 10 July is firmer.

With gas firm at the same time, CCGT marginal cost rises from carbon and fuel together, compressing the clean spark spread further just as gas-fired plant picks up the load French nuclear has dropped. The same squeeze showed up on 9 July, when gas and carbon rose together and compressed Germany's clean spark spread rather than the France-Germany spread.

Deep Analysis

In plain English

Carbon allowances are permits that power plants and factories must buy for every tonne of CO2 they emit under the EU's Emissions Trading System. The EU controls how many permits reach the market each year, and factories bid against each other for the shrinking pool. The EU has a rule that automatically pulls spare permits off the market when there is a surplus, which has been squeezing supply for a while. On top of that, the same heatwave that curtailed French nuclear plants (see the FR-DE spread story) is pushing utilities to burn more gas for electricity, and gas-fired power needs more permits. Both effects pushed the price above €81 a tonne for the first time since February.

Deep Analysis
Root Causes

The EU ETS Market Stability Reserve automatically withdraws a share of unallocated allowances from auction whenever the surplus sits above a set threshold, which mechanically shrinks the pool of allowances available to buy even if nothing about underlying emissions changes.

That structural tightening is being amplified by short-term fuel switching: when nuclear output drops (as in the French curtailment) or heat lifts power demand, utilities lean harder on gas-fired generation, and each additional gas-fired megawatt-hour requires more allowances, adding demand on top of the MSR's supply squeeze.

First Reported In

Update #26 · Gas and power decouple as French heat bites

Prestige Business Solutions· 13 Jul 2026
Read original →
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Written with AI from Lowdown's published reporting. Not individually reviewed by an editor. Editorial standards.