Spanish Electricity Prices: spot and hourly market dynamics
Spanish electricity prices are driven by renewable availability, gas and CO2 costs, and interconnection constraints with France. The Iberian market (MIBEL) frequently experiences strong intraday price swings, with solar-driven midday lows and evening peaks when flexible thermal generation sets the marginal price.
Spain electricity spot prices data
If you are looking for electricity prices in Spain, this page is designed to give you a clean, analysis-ready Spanish electricity spot price dataset.
Spain's spot market is part of the Iberian electricity market (MIBEL), where the day-ahead and intraday sessions are operated by OMIE. For trading analytics, forecasting models, asset capture studies, or market dashboards, consistent Spain power price time series are non-negotiable.
Use Axion to work with Spanish power prices faster:
Standardized, consistent time series suited for modeling and reporting.
Built for workflows like Python, BI tools, and quantitative analysis.
Clear navigation to related drivers like demand, generation mix, outages, and flows.
Price dynamics to watch
Hourly prices often compress at midday due to solar PV output and rebound during evening peaks.
Gas and CO2 prices remain key marginal cost drivers during low-renewable periods.
Limited interconnection to France can isolate Spain from wider European price signals.
Hydro availability provides flexibility and can reduce price spikes when reservoirs are strong.
MIBEL coupling aligns Spain and Portugal day-ahead prices in most hours.
Monthly structure: seasonality in Spanish electricity spot prices
Spanish spot prices often show a two-peak seasonality:
Higher-price regimes tend to appear during winter (heating load, tighter conditions) and summer (cooling load and peak demand events).
Lower-price regimes are more common in spring and autumn, when demand is milder and renewable output can be strong.
In practice, spring months (often April and May) can be especially important for price formation because solar production strengthens versus winter, hydro conditions can improve in wetter periods, and the combination can drive low, sometimes extreme low, midday prices in high-solar hours.
Hourly structure: the Spanish spot price shape
At an hourly level, Spain commonly exhibits:
A morning ramp and a stronger evening peak, broadly aligned with load dynamics.
Lower-price hours during the night and increasingly during the midday solar window.
As solar capacity has expanded, the midday valley has deepened, contributing to the rise in zero and negative price hours since April 2024.
Core drivers of Spain electricity spot prices
Renewables: wind, solar, and hydro
Spain's renewable build-out is a major structural driver of spot prices. REE reports substantial renewable capacity growth and a high renewable share of installed capacity even as some solar projects face margin pressure.
Practical implications:
Wind can introduce meaningful day-to-day volatility with large swings in output.
Solar concentrates generation in daylight hours, intensifying midday price compression and cannibalization dynamics.
Hydro is highly seasonal and weather-dependent; run-of-river differs materially from reservoir hydro in dispatch behavior.
If you want to explain price outcomes rather than only observe them, pair prices with generation mix and hydro indicators.
Nuclear availability and outages
Spain's nuclear fleet is relatively stable in dispatch, so availability changes can matter. Net installed nuclear capacity is about 7 GW, roughly 20% of 2025 peak demand, making outage and maintenance tracking a relevant price driver.
Action: track nuclear outages alongside prices in Axion Insights at Outages & availability.
Gas and CO2-sensitive thermal setting
During lower renewable periods, CCGTs and flexible hydro often become decisive for marginal price formation. In those hours, the price signal becomes more sensitive to gas and emissions prices. This was especially relevant around 2022, when gas prices spiked and power prices across Europe followed.
Gas input costs.
Emissions cost assumptions.
System tightness and scarcity conditions.
Interconnections: Portugal and France
Spain-Portugal interconnection is strong and often supports price convergence across MIBEL.
Spain-France capacity is comparatively limited (around 3 GW). Congestion is frequent and, while its role is usually marginal, it can be pivotal in some situations.
What to monitor if you trade, model, or invest in Spain power prices
If you want your Spain electricity price dataset to translate into actionable insight, track these alongside spot prices:
Renewable capacity build-out and grid constraints.
Frequency of zero and negative price hours, plus curtailment indicators.
Nuclear maintenance, outages, and return-to-service timing.
Hydro conditions (wet vs dry regimes).
Demand anomalies such as heatwaves or cold snaps.
Interconnection congestion and cross-border context.
Why high-quality Spain electricity price data matters
Spain is increasingly characterized by:
A large and growing renewable fleet, especially wind and solar, driving more weather-dependent markets and higher volatility.
More frequent very low, zero, and negative-price hours during periods of surplus generation, typically solar.
Limited interconnection with continental Europe, which increases sensitivity to local supply-demand conditions and congestion.
This combination makes Spain a market where signal quality depends heavily on data quality: correct timestamps (CET/CEST), daylight-saving handling, consistent units, and reliable history. Axion reduces data friction so your team can spend time on analysis rather than cleaning, reconciling, and reformatting.
Spanish Electricity Spot prices
Daily Spanish electricity day ahead dataset (CSV)
Download a clean CSV time series for analysis, reporting, and forecasting. The dataset covers January 2020 to December 2025 with daily resolution. If you need power prices datasets with different granularity, areas or need more fundamentals such as the generation mix for spain, see Data Access.
Do you need more data on the Spanish power market?
This page provides a public summary. Additional access to hourly generation, prices, or demand is available on the Axion Insights platform, supporting extended time ranges, custom granularities, and export.
Quarter-hourly generation mix by technology
Coverage across European power markets and natural gas datasets
Exports (CSV) and API access
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