Monthly electricity market report · MIBEL
Iberian electricity market — September 2026
Day-ahead price, demand and generation mix · ESIOS and OMIE data
Average price
0.0 €
vs August 2026
Average demand
0.0 GW
vs August 2026
Renewables
0%
▼ −55 pp YoY · CO₂-free 0%
Negative periods
0
▼ −100% YoY
Day-ahead market price
The day-ahead market averaged 0.0 €/MWh, % versus August 2026. In perspective it sits −100% against the 12-year September average (74.4 €/MWh): a somewhat cheap month. The year-on-year figure (−100% vs September 2025) is distorted by an anomalous base.
Hourly month heatmap
Daily average price comparison
Demand
Peninsular demand averaged 0.0 GW, % on August 2026 and −100% YoY, peaking at 0.0 GW.
Generation mix
On about 0.0 TWh scheduled (P48), renewables made up 0% and CO₂-free generation 0%.
Generation mix
Historical context
September · €/MWh
Methodology
Price: ESIOS indicator 600 (Spain). Demand: ESIOS indicator 1293 (peninsular). Mix: P48 schedule by technology (REE/ESIOS), best estimate at month close — metered generation is published later; the check against the most recent metered month shows differences below 1%. Peninsular scope, full calendar month.
© datons · Iberian electricity market — September 2026 · ESIOS (Red Eléctrica) · OMIE