04 Jul 2022, 11:40

What happens if Russia's gas supplies to Germany are cut?

Natural gas arguably is Russia's most important energy asset in the geopolitical scramble following the invasion of Ukraine. While the EU and other western allies agreed on an embargo on Russian coal and a far-reaching halt to oil deliveries, a ban on natural gas imports has been rejected by the bloc, despite numerous calls to implement it. Several member states, including heavyweights such as Germany and Italy, say they are too reliant on gas to cope with a sudden stop of supplies given that replacing Russian pipeline gas in the short term is much more difficult than finding alternative sources for coal and oil. Therefore, a collapse of gas trading with Russia would entail severe consequences for European economies. The Russian government already announced an end to gas deliveries to a range of countries, forcing Germany and the EU to prepare for a sudden supply cut. Worries about a halt to supply have been increasing after Russia's state-owned gas company Gazprom in mid-June announced a drastic reduction of deliveries. While Russia cites technical problems as the reason for supply reduction, Germany's government regards this as a mere pretext to exert political pressure. This factsheet explains why and when gas deliveries could be stopped, the immediate and long-term effects, and what precautions Germany and the EU have already taken. It also lists experts to talk to as well as important documents for journalists covering this story.[UPDATE 4 July: Updates graphs, details on supply shortage consequences]

Why and when could gas deliveries be stopped?

Russia and its key gas customers in Europe both insisted initially that gas trading will not be blocked by sanctions or other war-related measures, despite repeated calls from western allies to pull the plug on one of Moscow’s most important sources of income. However, Russia’s demand in March that gas shipments be paid in Russian roubles alarmed western importers, as it showed that the Russian government was ready to use natural gas as a tool to influence EU policymakers. In a joint G7 statement, leading EU governments said they would not accept a change to existing contracts that stipulate other currencies. 

As of early July 2022, Russia had cut gas deliveries to several European countries -- for example Poland, Bulgaria, the Netherlands and Finland -- citing a failure to comply with rouble payments in each case. In May, the EU softened its stance on gas trading restrictions, leading several key customers to ultimately cave in to Russian demands and pay in roubles to keep supply stable in the short run. Germany has aimed to wean itself off Russian supplies almost entirely by 2024. But while bigger EU customers like Germany and Italy so far have not been cut off entirely, a significant reduction of flows to Germany as well as to Italy and France has raised worries the government in Moscow will ultimately also cut off its most profitable gas customers in Europe.

State-owned Russian gas provider Gazprom in mide-June announced gas flows from Russia to Germany through the key pipeline Nord Stream would be reduced by about 60 percent, arguing that German engineering company Siemens had failed to provide the equipment needed to carry out repairs. The announcement came just weeks before the offshore pipeline is scheduled to undergo its annual maintenance work  and Gazprom did not specify how long flows will be reduced. Maintenance works are scheduled to take place between 11 and 21 July and flows will be halted completely for their entire duration, the pipeline's operator company said. German economy minister Robert Habeck, who already in May said Russia would "weaponise" its fossil fuel resources, called Gapzrom's decision "political," as no technical or legal reason for the delay could be found. On 23 June, Habeck's ministry launched the second of a total of three escalation stages of its national gas supply security plan, the "alert stage" that is supposed to prepare gas consumers for further rising prices and possible supply bottlenecks while still largely relying on market mechanisms.

Habeck said the government might regulate gas retailing if the reduced flows mean gas storages cannot be filled according to plan. According to Germany’s Federal Network Agency (BNetzA), the planned shutdown implies that the country’s gas storages cannot be filled further for the first time since the war broke out. Depending on the course of the war and the course of mutual sanctions between western countries and Russia, a halt to supplies thus may occur before storages can be filled sufficiently before winter. He warned that Germany would face “very, very heated debates” if the country didn’t manage to fill gas storages before the heating season.

What would be the immediate effects of a halt to gas supplies?

Natural gas accounted for nearly 27 percent of Germany’s total energy consumption in 2021, mostly for heating and industry purposes and to a much lower extent (around 15%) for electricity production. Germany managed to quickly reduce its dependence on Russian gas since the invasion, from around 55 percent in February to around 35 in May 2022. However, it still faces the significant challenge of replacing the remaining share with alternative sources. As of early July, filling levels stood at just above 60 percent. A new law obliges storage operators to fill their facilities to at least 90 percent of capacity by November and retain at least 40 percent by February.

If Russia fully cuts off deliveries through Nord Stream 1, authorities in Germany would have up to 24 hours to detect that the pipeline is running empty, network agency head Klaus Müller said. The immediate reaction on the German side would depend on consumption levels when the supply gets cut off; on filling levels of Germany’s gas storages; and on available substitutes from other countries, he said. Whether or not Germany will have to declare a state of emergency would then have to be decided quickly to prevent market turmoil, Müller said. An end to deliveries during winter could thus lead to greater difficulties than in summer, when gas consumption is much lower.

Scenarios calculated by the BNetzA for gas supply during the winter show that even if deliveries through Nord Stream 1 remain at the current 40-percent level, filling storages according to plan is only possible if one assumes that intra-European gas deliveries are no longer complete and consumption this winter remains 20 percent below normal levels. Three out of the seven scenarios calculated by the BNetzA conclude that there will be a gas deficit at some point next winter. "The decisive factor is the reduction of domestic consumption in order to secure security of supply and the necessary supply of neighbouring countries."

In the event of a severe gas crisis, so-called “protected customers” will be treated with priority if gas rationing is enforced. These include households, small businesses like bakeries, supermarkets, and essential social services, such as hospitals, schools, police stations or food producers. Companies with so-called “interruptible contracts“ would be the first to see their gas supply cut if rationing is enforced, followed by gas power plants that are not essential for grid stability. Next in line are large industrial customers, which accounted for about 37 percent of the country’s gas demand in 2021.

However, BNetzA head Müller said there is a wide range of factors at play, depending on the gas cut’s exact circumstances, which makes establishing a clear shutdown schedule beforehand a very challenging task. “Unfortunately, it’s not possible to bring all these criteria in a clear-cut order,” he argued. Decisions ultimately would have to be taken on a case-by-case basis, “since the situation that prevails will be a rather individual one,” meaning the exact conditions of a gas cut are not previously known. Establishing an “abstract cutoff order” would not be possible even if market actors are calling for it to have greater planning security.

The grid agency warned that even a temporary regional gas supply shortage could have lasting effects on private households. As soon as the pressure in a certain region falls below a minimum threshold, hundreds of thousands of gas boilers would automatically switch off and would have to be restarted individually by qualified personnel, BNetzA head Klaus Müller warned. That’s why his agency would always aim to avoid this scenario by ordering cuts in industrial use. Almost half of Germany’s 43 million households are heated with natural gas.

Müller said in early July it remained uncertain whether Germany can reach its target to refill  gas storages to an average 90 percent before winter. “If gas flows from Russia are lowered for a longer term in the course of the maintenance for political motivations, we have to talk seriously about savings.” He said in that case products and services that are not essential rank lower in the priority list. “Swimming pools are not critical, nor is the production of chocolate buiscuits.” Hamburg’s city government said this could also require a rationing of warm water, or lowering the maximum temperature in the district heating network.

Production cuts due to gas shortages could also disproportionately affect producers of energy-intensive basic materials like chemicals, steel, fertilisers or glass. Some industrial installations would be permanently damaged if they have to be turned off for an extended period of time. Company leaders have therefore warned against “dramatic” consequences of a domino effect in supply chains that could set in if their products are no longer available. This, they argue, would spread the damage across the economy in a way akin to the Lehman Brothers bank collapse that triggered the 2008 financial crisis.

Which precautions did Germany and the EU take?

Already in late March 2022, Germany triggered the first of three stages of its national gas supply emergency plan over fears that Russia’s demand to receive payments from foreign buyers in roubles could lead to a halt in trading. The "early warning" stage was declared as a precautionary measure, as supplies were not threatened at the time, the ministry said. Triggering this stage had little immediate consequences for the end-users of gas but served to put preparation for an escalation of the crisis on a more solid legal and organisational footing. A crisis response team consisting of representatives from the energy ministry, the network agency, grid and storage operators and gas retailers was formed to monitor developments and prepare adequate responses.

The second stage of "alert" was triggered following supply reductions via Nord Stream 1 in mid-June under the assumption that this could bring markets out of balance. Several companies have already objected that they cannot tolerate a drastic spike in prices as regular market developments and industry heavyweights like chemicals producer BASF have warned prices could rise "massively" in the wake of reduced supplies through the offshore pipeline. Direct state intervention in gas distribution would not yet take place at this stage, but the government could allow a re-opening of existing gas contracts at fixed rates to pass part of the price increases to customers - a move that according to BNetzA head Müller could mean households will see a tripling of their heating bill next winter.

The government only directly intervenes in physical distribution in the third and last escalation level, the “emergency stage,” which is triggered once a “significant deterioration” of the supply situation is considered imminent. In this stage, the network agency BNetzA becomes the so-called “federal load retailer,” effectively meaning gas rationing sets in and the state agency takes over allocation from grid operators according to pre-established criteria.

An immediate cut to supplies could be partly cushioned by the EU’s Secure Gas Supplies regulation, already introduced in 2017, which stipulates that member states assist each other with gas supplies in case of a shortage. EU countries are required to put in place the necessary technical, legal and financial arrangements to make the provision of ‘solidarity gas’ possible in practice. So far, Germany has made legal arrangements for gas assistance only with Denmark and Austria.

To help decide how a rationing and shutdown sequence could look like, the BNetzA requested gas grid operators and industrial customers to specify their consumption levels and future gas needs on the “Gas Security Platform.” Companies with a very high gas demand -- more than 10 megawatt hours (MWh) of gas per hour -- can be treated individually in case of gas rationing, while those consuming less than the threshold value will have to be processed with a sweeping “lawnmower method,” agency head Müller said. Roughly 2,500 large customers that consume more than 10 MWh account for the bulk of industrial gas demand. The aim would be to allow companies to have control over the gas volumes they receive during the shutdown to avoid damage to their machinery, he said.

A campaign aimed at reducing dependence on Russian imports and accelerating the transition to renewables launched by the government and an alliance of business and civil society groups has been launched to encourage citizens to save energy. Lowering heating temperatures and cutting back on warm water use could significantly reduce gas demand in households, which accounted for about one-third of gas demand in 2021.

What could be the long-term effects of a cut?

In a joint analysis of the country’s economic prospects in the energy crisis, Germany’s leading economic research institutes said halting deliveries would “threaten to throw the German economy in a severe recession.” A gas cut could reduce gross domestic product (GDP) by nearly one percentage point, from 2.7 percent expected in 2022 to 1.9 percent. In their previous analysis in autumn 2021, before Russia’s invasion started and the energy crisis gained full steam, the researchers still expected GDP to grow by 4.8 percent. For 2023, a gas cut could even lead to economic contraction of more than 2 percent, while a scenario with continued gas trading predicts GDP growth in excess of 3 percent. The cumulative loss of GDP of an end to gas deliveries could amount to 220 billion euros by the end of next year, roughly 6.5 percent of Germany’s annual economic output.

A study published by the University of Mannheim found that the repercussions of a gas cut could be much more dramatic than those of the 2008 financial crisis or the COVID-19 pandemic that started in 2020, gauging the loss in GDP at about 8 percent. “This energy shock would directly strike at the core of German industry and strongly reduce the production potential,” the study found. 

However, leading research institutes have warned that policymakers should be careful not to distort necessary structural change in an attempt to avoid short-term damages. This change would affect gas-intensive industries irrespective of an end to Russian supplies, as a pivot away from the gas German companies have so far received at favourable prices is inevitable in any event, the economists said. Energy experts testifying in the German parliament in a hearing about the effects of a gas cut said prices will be rising irrespective of a halt to gas trading.

Energy economist Andreas Löschel, head of the government’s expert commission on the energy transition, told Neue Energie magazine that in principle rising prices for fossil fuels would be a much-needed development to facilitate the transformation towards clean energy sources. The government’s current policy of quickly reducing costs for customers would not be sustainable, Löschel said. Poorer customers and threatened companies that struggle to weather the price rise should be assisted but prices should generally be set by market developments, he argued. “The biggest part of the price hike still lies ahead of us,” the expert commission head said, arguing that high prices are needed to raise awareness of the situation’s “urgency” and that these should initiate large-scale energy saving programmes. Regarding alternatives for Russian gas supplies, Löschel said the aim should not be to replace long-term contracts with Russia with long-term contracts for liquefied natural gas (LNG) deliveries from other countries. “Gas will remain important for many years to come – but we will also need lower quantities than we do now,” he said.

Who to talk to in the event of a gas crisis?

Federal Network Agency (Bundesnetzagentur): pressestelle@bnetza.de, Phone: +49 228 14 – 9921

Gas industry association Zukunft Gas, Charlie Grünberg: charlie.gruenberg@gas.info, Phone: +4930 4606015-63

Economy and Climate Ministry (BMWK): pressestelle@bmwk.bund.de, Phone: +49 (0) 30 18 615 -6121 or  -6131

Energy industry association BDEW: presse@bdew.de, Phone: +49 30 300199-1160

Energy-intensive industry association EID, Jörg Rothermel: rothermel@energieintensive-industrien.de, Phone: +49 69 25 56 14 63

Simone Tagliapietra, EU think tank Bruegel: simone.tagliapietra@bruegel.org
Georg Zachmann, EU think tank Bruegel: georg.zachmann@bruegel.org

Tom Krebs, University of Mannheim: tkrebs@uni-mannheim.de

Stefan Kooths, IfW Kiel: stefan.kooths@ifw-kiel.de

Joint analysis of Germany’s leading economic research institutes: sabine.weiler@rwi-essen.de

Documents and readings

Federal Network Agency’s Gas Supply Status Report (in English)

Climate and Economy Ministry’s Gas Emergency Plan (in German)

Climate and Economy Ministry’s May 2022 Energy Security Report (in German)

Joint analysis (Gemeinschaftsdiagnose) of Germany’s leading economic research institutes on energy crisis (in German)

Bruegel Opinion: “Europe Must Get Serious About Cutting Oil and Gas Use

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