Spain’s wholesale electricity hit €44/MWh in early 2026 vs €96-127 in Germany/Italy, driven by wind+solar displacing gas as the marginal price-setter.
Key Takeaways
Wind (20%) and solar (22%) crossed fossil generation in 2022; by Q1 2026 renewables were 44% vs fossil fuels 17%.
Gas set the marginal wholesale price in 55% of hours in 2022, falling to 27% in 2024, and just 9% in early 2026.
Despite cheapest wholesale in Europe, Spanish households pay €0.265/kWh retail, above EU average, due to taxes, network charges, and levies.
Nuclear (~19% of generation) is scheduled to retire 2027-2035; without replacement, gas moves back up the merit order.
The April 2025 Iberian blackout was caused by voltage instability cascade, not renewables excess; ENTSO-E chair confirmed fixes (statcoms, disconnection protocols) are available now.
Hacker News Comment Review
Key structural caveat: Spain’s low wholesale price is partly a function of limited interconnections with the rest of Europe, which prevent arbitrage from closing the spread with higher-priced neighbors.
Commenters challenged the day-ahead framing: forward market prices (e.g., CAL27) show Spain is not necessarily cheaper than France or Nordics on longer maturities, undercutting the headline comparison.
There is broad agreement that retail prices tell a different story than wholesale; taxes and levies in Spain consume ~31% of the bill, and the wholesale gains have not yet reached households.
Notable Comments
@pyrale: Low interconnection capacity with Europe limits arbitrage, making the Spain-vs-Europe price gap partly a structural artifact rather than pure renewable efficiency.
@hokkos: CAL27 forward prices on EEX show Spain trading higher than France and Nordics, challenging the day-ahead-only narrative.
