Gazprom keeps Nord Stream 1 shut indefinitely as EON absorbs €700m writedown
Russia's open-ended halt on its main Baltic pipeline deepens Europe's winter supply crisis and forces EON to mark down its pipeline stake by €700m.
Gazprom said on Friday (2022-09-02) that Nord Stream 1 could not restart, citing urgent maintenance on key components and giving no date for resumption. The announcement came hours before flows were due to resume. Russia had halted the pipeline at 5am on Wednesday (2022-08-24), and what began as a scheduled three-day shutdown became open-ended.8,3,6
The closure removes roughly a third of Russia's pipeline export capacity to Europe. European governments had been counting on the link to reopen and were already struggling to contain soaring gas prices when Gazprom kept the valve shut.5,3
EON, Europe's largest energy network operator, moved to reflect that damage on its balance sheet, writing down its stake in Nord Stream 1 by around €700m and citing "heightened uncertainty" over Russia's invasion of Ukraine. The €700m is EON's own estimate. The company has not disclosed the valuation methodology, leaving investors with no independent basis to check the figure.7
Gazprom and Germany's Siemens Energy disagree publicly on what the maintenance actually involves. Gazprom claims the only operational turbine at a key compressor station requires urgent repairs. Siemens Energy disputes this. They also differ on whether the equipment can be serviced at all while Western sanctions remain in place.5,2
For gas traders, the technical dispute is largely beside the point. The three-day maintenance shutdown announced in mid-August was itself a supply squeeze: Gazprom had already cut flows to just 20% of capacity, or 33 million cubic metres per day, from Wednesday (2022-07-20).1 The current halt goes further, and Gazprom's assertion that the pipeline "cannot operate safely" gives markets nothing to price against.6
ICE Endex TTF front-month gas settled at €61.38/MWh by Saturday's (2026-08-15) close. German day-ahead power settled at €134.87/MWh on the same date. The gap between those two figures reflects the gas-to-power generation stack: when pipeline supply is constrained and gas is expensive, gas-fired generation sets the marginal price across a large portion of the European grid.
The EON writedown is a balance-sheet acknowledgment of what the market had already priced. A stake in a pipeline that may never carry commercial volumes again has sharply diminished book value. The €700m figure is unverifiable in the absence of a disclosed methodology, a detail that matters for anyone assessing EON's accounts at face value.7
The Baltic dimension adds a separate layer of infrastructure risk. A pipeline carrying gas between Finland and Estonia became the subject of an international sabotage investigation, raising questions about undersea energy security less than a year after the Nord Stream explosions.4 Finland had ended its reliance on Russian pipeline gas after the invasion and depends on the Balticconnector for supply; a prolonged outage there would push Helsinki toward LNG imports with few regional alternatives. Finnish day-ahead power settled at €30.21/MWh at Saturday's (2026-08-15) close, a calm reading that reflects summer demand rather than any resolved supply risk if Baltic corridor disruptions were to compound a shut Nord Stream 1.4
The G7 announced a cap on Russian oil prices on Friday (2022-09-02). Gazprom now faces a market that is pressing for the pipeline to reopen while simultaneously constraining the revenues that underpin its negotiating position.8
Gazprom has not named a date for the turbine repair, and Siemens Energy has not confirmed it can carry out the work. Every day Nord Stream 1 stays offline erodes European storage headroom ahead of the winter heating season. ICE Endex TTF front-month will price that growing supply gap before demand peaks. If Nord Stream 1 appears on Gazprom's next published maintenance schedule, the market gets a floor of sorts; if it does not, EON's writedown may prove the first of several across the sector.5,2