European utilities' 2022 margin calls

A textbook hedge

Through 2021 and into 2022, European utilities and gas suppliers did what a well-run energy company is meant to do. They sold futures on the power and gas they expected to produce months ahead, locking in a price rather than leaving revenue exposed to the market. That is a standard short hedge, the same trade a farmer makes when selling a future harvest forward. On paper, and in the event, these firms were not wrong.

The invasion and the price spike

On 24 February 2022, Russia invaded Ukraine, and gas and power prices in Europe did not drift, they surged. TTF gas went on to peak at around EUR340 per megawatt-hour in August 2022, against a typical 2019-2020 range of roughly EUR3.5-23/MWh. German wholesale electricity rose from about EUR50/MWh at the end of 2020 to more than EUR600/MWh at the same peak.

A winning hedge that still demanded cash

For a firm that was short futures as a hedge, that price rise was, in the end, good news: the power or gas it would eventually sell was worth far more than expected. Futures are marked to market and settled in cash every day, and that is where the trouble started. As prices climbed, the short leg of the hedge lost money on paper, and the clearing house called for variation margin immediately, in cash. The gain on the physical side of the business was real, but it was months away; the cash demand on the futures side was due tomorrow. Initial margin, the buffer clearing houses hold against future losses, rose sharply on top of that as volatility increased. On the EEX exchange, the initial margin ratio on TTF gas futures peaked at about 60% in March 2022, against a ratio that had "rarely exceeded 20%" before September 2021, and on German electricity futures it reached about 50% in 2022, up from about 10% in early 2021.

Uniper's collapse and nationalisation

Germany's Uniper, Europe's biggest buyer of Russian gas at the time, was hit hardest. It had already needed precautionary liquidity in January 2022, citing "significantly higher margining requirements" after gas prices had risen "up to 1,000%" over 2021. By July 2022, with Russian pipeline flows cut and losses mounting, the German government agreed an initial EUR15 billion stabilisation package. Losses kept growing, and by September 2022 Germany moved to fully nationalise the company. By December 2022, the European Commission had cleared a EUR34.5 billion recapitalisation, taking the state's stake to about 98.5% at EUR1.70 a share, with the cumulative cost of the rescue reported by Reuters at "more than 50 billion euros". Uniper was the most exposed single case, but it was not an outlier: the same mechanic hit the sector broadly. In September 2022, Equinor's senior vice president for gas and power, Helge Haugane, estimated total margin calls facing European power firms outside Britain at "probably more than 1.5 trillion euros", far beyond even the largest government rescue package that followed.

Governments step in, partially

Governments across the region responded within days of each other in early September 2022: Sweden offered credit guarantees up to SEK250 billion, Finland up to EUR10 billion, Denmark up to DKK100 billion, and the UK announced a GBP40 billion Energy Markets Financing Scheme. Bloomberg's headline figure for the combined Nordic backstops was about US$33 billion. Against Equinor's trillion-euro estimate, the scale problem is clear: even packages of that size covered only a fraction of the cash the market as a whole needed to find at short notice.

The distinction between variation margin and initial margin under central clearing, set out in Lecture 2, sits squarely underneath this case. The utilities' position was a standard short hedge: selling futures on power or gas they expected to deliver later, to lock in a price and protect against a fall. That is exactly the position a producer is meant to take, and nobody here was proven wrong about the direction of the market.

The problem was timing, not judgement. Variation margin is settled in cash, daily, by the losing side of the contract. When prices rose after the invasion, the short futures leg showed a mark-to-market loss even though the physical business behind it was becoming more valuable by the day. The gain was real but distant; the margin call was immediate. Initial margin made this worse: as a clearing house raises its IM ratio in a volatile market, every position holder, hedger and speculator alike, must post more cash or cut their position, regardless of whether their view on price direction is right. A firm hedging one hub or grade against a slightly different physical exposure also carried basis risk on top of the margin-timing problem, though the 2022 story is overwhelmingly about cash liquidity rather than basis divergence.