H1 2026: Europe's Energy Crisis Did Not End: It Changed Shape

Halfway through 2026, it is tempting to say Europe's energy markets have calmed down. Prices are far below the peaks of 2022, storage rules are in place, and renewables keep breaking records. But the more accurate reading is that the crisis has not ended, it has rotated. The first half of the year moved from a cold, demand-heavy winter to a hot, geopolitically charged summer, and the source of risk shifted with it.

Q1: demand, renewables and negative prices

The year opened cold. January temperatures ran 1–4°C below average across parts of Europe, and quarterly electricity demand climbed to 829.3 TWh, the highest since 2022, according to Montel.

At the same time, renewables delivered a record. Q1 renewable generation reached 384.9 TWh, the highest quarterly figure on record, with wind up 22% year on year to 173.7 TWh, hydro recovering to 128.6 TWh, and solar setting a new Q1 record of 52.6 TWh.

That combination produced one of the defining features of the modern European market: negative prices. EU-27 day-ahead markets recorded 1,223 negative-price hours in Q1, more than double the same period of 2025. Spain was the standout, with 397 hours of negative prices against just 48 a year earlier, as strong solar output created midday oversupply the system could not always absorb. High demand and record renewables coexisted with prices falling below zero, a paradox that captures how the system now behaves.

Q2: heat, gas storage and geopolitics

By summer, the risk map had rotated. The cold-driven demand story gave way to a heat-driven one. A late-June heatwave lifted electricity demand and pushed weekly average prices above €115/MWh in most major markets, with lower German and Italian wind compounding the tightness. Behind it sat record ocean temperatures and a strengthening El Niño that the WMO expects to reach "strong" status through July–September.

Gas set up the summer's structural worry. EU storage began the injection season on 1 April at just 28%, the lowest in four years, leaving Europe reliant on materially higher LNG imports to refill before winter, at an estimated additional cost of €10–15 billion.

Then geopolitics returned. By 9 July, renewed US–Iran escalation and Strait of Hormuz shipping risk had put a premium back into oil and, more importantly for Europe, into the LNG-gas-power chain. With storage low and the summer-winter spread under pressure, the refill task became both more expensive and more exposed to disruption.

What H1 tells us about the new energy system

Three structural features stand out. First, renewables are now large enough to reshape prices, not just supply, abundant wind and solar drive prices below zero in the middle of the day even when overall demand is high. Second, weather has become a primary market driver at both extremes: cold lifted Q1 demand, heat lifted Q2 prices, and the intervening swing happened in months. Third, gas and geopolitics remain the system's pressure point, a low storage base plus a tense Middle East means events far from Europe still move European power, chiefly through LNG.

The through-line is volatility. The average price is lower than in the crisis years, but the range of outcomes, from negative prices at midday to €115/MWh weeks in a heatwave, has widened. Managing the average is no longer the hard part; managing the range is.

Three lessons for corporate energy buyers

First, plan for two-sided risk. The same year can deliver both negative prices and stressed peaks, sometimes weeks apart. Strategies built only around "prices going up" or only around "prices going down" miss half the picture.

Second, treat weather and geopolitics as core inputs, not background noise. El Niño, heatwaves, storage levels and Hormuz are no longer specialist concerns, each has moved European prices in H1, and each belongs on a buyer's monitoring list.

Third, watch structure, not just level. Intraday shape (midday lows versus evening peaks), the summer-winter gas spread, and the peak-to-baseload spread now carry as much decision-relevant information as the headline price.

Closing thought

Europe's energy system in H1 2026 is not in crisis in the 2022 sense but it is not "back to normal" either. It has become a system defined by rotation: from cold to heat, from storage worries to LNG competition, from record renewables to record negative prices. For energy buyers, the task is no longer to wait for calm. It is to build strategies that expect the risk to keep moving because in the first half of 2026, it did exactly that.