Analysts warn of EUR 4,500 German power spike in sabotage scenario
An analyst warning to Montel about coordinated grid sabotage arrives as German power front-month trades at EUR 149.68/MWh with supply conditions already stretched.
Analysts told Montel that coordinated grid sabotage could push German power prices to EUR 4,500/MWh, a scenario far above where the market is trading. German Power front-month (DEB=F) was at EUR 149.68/MWh on 4 September 2026, with the Q+1 contract at EUR 157.97/MWh and Cal+1 at EUR 120.92/MWh. The spread between the analyst scenario and the current curve is wide, but recent supply data shows how quickly the German grid can tighten.2
Germany's day-ahead prices showed what rapid tightening looks like: they soared 29% on Wednesday (2026-05-27) as a heatwave boosted cooling demand and wind output collapsed, with LSEG data cited by Reuters showing wind supply falling to 4.4 GW from 9.7 GW the previous day. Non-renewable load jumped 8.2 GW to reach 23.5 GW over the same period, pushing gas-fired generation harder.4
Higher German baseload pricing flows into adjacent markets fast. When German power rises, the economics of coal-to-gas switching shift, lifting EUA demand and European carbon costs. French import costs follow when German supply tightens.2
Analysts had already identified gas supply stress as a price driver before the sabotage warnings emerged. German Q2 spot prices were forecast to surge 17% year on year amid the gas crisis. Gas prices were projected to average EUR 46.35/MWh in Q2 2026, up 40% from Q2 2025 levels, with analysts telling Montel that a solar boost and lower demand would limit some gains. ICE Endex TTF front-month gas was trading at EUR 71.95/MWh on 4 September 2026, above that Q2 projection, keeping backup generation costs elevated.1
Germany's grid carries a separate structural vulnerability. At least 32 GW of wind and solar projects in development, equivalent to EUR 45bn in investment, could be disrupted under a government plan to decongest power line networks, according to a study by think tank Enervis for advocacy group Green Planet Energy. Those projects represent roughly one-third of Germany's peak demand capacity sitting in regulatory limbo.3
Negative prices add a further operational challenge for grid operators. Germany saw day-ahead prices print at EUR -499.99/MWh on 1 May 2026 during surplus solar and low demand conditions, and analysts expect similar episodes to recur. Grid operators must handle both extremes: curtailing surplus power during oversupply and sourcing capacity fast when demand spikes. A deliberate attack on transmission lines would compress the response window at both ends.2
Still, the renewable build-out is the strongest counterargument to sustained elevated prices. Wind power generation in Germany jumped 27% in the first quarter of 2026 from a year earlier, according to analysis by the International Economic Forum for Renewable Energies. Germany added an estimated 5 GW of wind turbines in 2025. Wind speeds were more favorable in early 2026 than in the first half of 2025, and power prices fell 8.9% across the first half of 2026.4
German Q3 power prices may face upward pressure regardless of the sabotage threat, with analysts telling Montel that more hot spells and evening spikes from steeper solar production shifts could support prices. French production remains strong for imports, offering some relief, though that buffer depends on interconnection capacity staying intact.5
Without confirmed infrastructure damage, the EUR 4,500 scenario stays an analyst tail call rather than a market consensus. Cal+1 at EUR 120.92/MWh reflects the longer-dated view that this episode will subside. Wide spreads between near-term and quarterly contracts are likely to persist until operators publish verified damage assessments or the threat clears.5