Germany's 7.8 GW Coal Reserve Could Cut 2027 Power Prices 5%, Brainpool Finds
Brainpool analysis calculates that Germany's hard coal reserve fleet could cut 2027 day-ahead prices by 5%, a discount gas markets are not pricing in.
Analysis by Montel Energy Brainpool, published on Monday (2026-08-31), found that returning Germany's 7.8 gigawatts of hard coal capacity from grid reserve to active dispatch could cut wholesale day-ahead power prices by as much as 5% in 2027. The same report pegged a smaller reduction of 2.3% for the remainder of this year.6
The economics of reactivation are tightening. ICE Endex TTF front-month gas rose 4.46% to €69.77/MWh by 08:15 UTC on Tuesday (2026-09-01), and German Power day-ahead (DEB=F) climbed 1.15% to €148.08/MWh in the same session — a combination that makes coal displacement of gas-fired generation progressively more attractive for any reserve plant cleared to run.6
The argument for reactivation was already being made months earlier. The German Coal Importers Association (VDKI) said on Wednesday (2026-05-20) that bringing 6.7 GW of reserve coal capacity online would help Germany conserve gas stocks and dampen gas-price volatility. With storage levels having fallen to nearly 20% of capacity at that point, the VDKI's chairman said saving gas was "the name of the game."2
The gas supply backdrop has hardened since. European gas prices rose roughly 40% from pre-conflict levels, according to Montel reporting, after Iranian missile strikes on Qatar's LNG production and export infrastructure removed around 20% of global LNG supply capacity. Gas Infrastructure Europe data showed German storage sites at 30.6% on May 27 (2026-05-27), against 38.65% at the same point in 2025.5
Uniper chief executive Michael Lewis warned at the time that without faster injection rates Germany would face shortages the following winter, calling publicly for government incentives to accelerate filling.5
But Brainpool's 5% estimate requires full reactivation of the entire 7.8 GW fleet. No partial-deployment scenarios are disclosed in the report. Ramping coal plant through reserve protocols can take months, and any dispatch order needs to clear grid and regulatory approvals before megawatts reach the market. The VDKI's earlier reference to 6.7 GW of reserve capacity, smaller than Brainpool's 7.8 GW figure, suggests the precise quantum of dispatchable coal remains contested.6,2
The wider global coal rebound faces its own limits. Ember's worst-case analysis, published by Carbon Brief, put the global rise in coal power output at no more than 1.8% in 2026, far below what full German reactivation would represent for that country's generation mix alone. Germany's reserve plants differ from a greenfield revival: they are grid-connected assets, so the barriers are regulatory and political rather than construction-related.3
Day-ahead German power markets have shown how quickly supply gaps move prices. Electricity day-ahead prices jumped 29% on Wednesday (2026-05-27) during a European heatwave that cut wind output. LSEG data cited by Reuters showed wind supply expected to drop from 9.7 GW to 4.4 GW over the following day, while non-renewable load was projected at 23.5 GW.4
Wind is not standing still. German wind generation rose 27% in the first quarter of 2026 year on year, per International Economic Forum for Renewable Energies (IWR) data, and around 5 GW of new turbine capacity was added in 2025. Still, those gains cannot substitute for dispatchable capacity when wind drops sharply, and the May (2026-05-27) spike showed the price consequences clearly.4
Montel analysts had forecast German Q2 spot power prices averaging 17% higher year on year, with gas seen averaging EUR 46.35/MWh across Q2 2026, up 40% from Q2 2025. In that price environment, a 5% structural reduction in power prices would shift material volume in the power balance.1
Trading Hub Europe M+1 gas reached €70.97/MWh by 08:15 UTC on Tuesday (2026-09-01), up 5.27%. No public timetable for releasing Germany's reserve coal capacity has been announced. Brainpool's 2.3% near-term price reduction depends on dispatch beginning before this winter's storage season tightens further. Every day the plants remain on standby, German power buyers carry more of the gas cost that coal reactivation is designed to reduce.6