The last few weeks on the European
#energymarkets have been a wild ride.
#TTF FrontMonth jumped more than 30% pulling most of the future power contracts with it from Oct_26 to even Cal_27 in
#DE, but across Europe really.
Hormuz war still has no end in sight, we hear that the
#gas storages are on alarming levels etc. - so the continent gas supply is under sever shock again after the 2022 energy crisis.
On top of all that we had a very dry and warm summer, which put the core of the power generation under heavy stress as well - what I did in this presentation is pull the most interesting numbers around the change in the fuel mix of 2026 vs 2024-2025 avg ('normal').:
Key findings:
- nuclear and hydro run-of-river generation combined was 15.4 GW lower than normal between 1 August - 16 September.
- solar +12 GW while gas and coal stood +8.2 GW in the same period
(monthly avg. gen. / solar could only help between 08-20)
#BE decided to close nuclear reactors but the rest of the lost generation was down to extreme weather - highlighting the vulnerability of the European grid.
Gas, coal and lignite gen. combined is running on a 3YR high since May 2026 - and that's the key reason why the gas supply crisis (Hormuz) matter a lot more now, than 3 months ago, because we are heading into the winter, where solar will help even less, and the hydro outlook still looks very weak. (and some nuclear unit ramp up is also lagging)
- slide 9. shows the fuel mix changes split between day/night, while slide 10. shows via the residual load hourly avg. (demand minus wind and solar) that the morning and evening peaks are practically unchanged buy the solar growth so we needed fossils there (slide 11.).
- adding
#BESS generation change would have been great to see it's impact, which has obviously significantly changed since 2024 for example, but unfortunately the reporting of those numbers are inconsistent on entso-e. (to say the very least).
+1 interesting (and sad) fact, that the
#SEE Hydro drop this year vs 2024-2025 avg. looks small -0.5 GW (-30%) but here the 2024-2025 avg. is already -20.7% below the average of 2019-2023. (slide 12.)
Three of the four driest August–September windows on record are the last three years: 2026 at 1,264 MW, 2025 at 1,795 and 2024 at 1,887. Only 2022, at 1,639 MW, interrupts the run; every other year from 2019 to 2023 ranged from 2,069 to 2,774 MW. That looks like scary trend, not a one off events.
Thanks
Georgios Merachtsakis for the help, additional perspective!
If you also need hydro outlook for example, we have it at
Montel Analytics, get in contact!