Spain Electricity Market Data
A focused entry point for Spanish power market data covering generation mix, electricity prices, and demand. This page is your Spain power market data overview. Use it to quickly understand the structure of the market, key facts, and main data sources, then dive deeper into dedicated pages for prices, demand, and generation by technology. All the used data is free to download.
Datasets
Electricity demand
Load patterns, seasonality, and hourly demand datasets for Spain.
View pageKey facts about Spain power market
Spain is part of the Iberian Peninsula alongside Portugal. Both countries operate a highly interconnected power system that is often analysed as a single market due to frequent price convergence.
Spain has limited interconnection with the rest of Europe through the Pyrenees with France, which reduces its exposure to broader European market dynamics. Spain is also interconnected with Morocco.
Spain’s power generation mix is diverse. In 2025, the mix was approximately 21% wind, 20% solar, 12% hydropower, and around 17% combined-cycle gas (CCGT), leading to strong daily, monthly, and annual variability.
High interconnection capacity with Portugal typically results in similar prices, while prices with France tend to diverge more often due to the relatively limited interconnection capacity.
Renewables play a central role in Spain’s price formation thanks to the high penetration of solar, wind, and hydro, often driving very low prices during solar hours and higher prices in the morning and evening ramps.
Main data sources
The main sources of Spanish electricity data are the Spanish TSO Red Eléctrica de España (REE), the ENTSO-E Transparency Platform, and OMIE (the Iberian power market operator). Together, they provide comprehensive datasets covering power generation, electricity demand (load), day-ahead and intraday market prices, cross-border interconnections, and many other key indicators for the Spanish power system.
REE is the most detailed option if your focus is Spain. It offers broad coverage with a higher level of granularity, including breakdowns by region, more specific system indicators, and additional layers such as ancillary services and operational metrics. For anyone doing deep analysis of the Spanish electricity market, REE is typically the reference source.
OMIE is the key reference for market-facing data in Spain and Portugal (MIBEL), publishing official day-ahead and intraday results, prices, and auction information used across trading, analytics, and reporting workflows.
By contrast, the ENTSO-E Transparency Platform provides the core fundamentals for Spain: generation, demand, interconnections, and standard market data. Its real advantage is scale. Because ENTSO-E covers most European countries, it enables straightforward cross-country comparisons, consistent methodologies, and more flexibility if you work across multiple power markets in Europe.
At Axion Insights, we collect and harmonize data from REE, ENTSO-E, and OMIE to build curated Spanish electricity datasets you can use immediately. You can download data in formats like CSV or Excel, aggregate it across multiple timeframes (from minute-level to annual views), and compare Spain with other European markets without spending time cleaning and aligning raw sources.
If you’re looking for reliable, curated Spanish electricity data for analysis, forecasting, or reporting, explore our platform.
REE (Red Electrica de España)
Official system operator data for generation, demand, interconnection flows, and system balance.
ENTSO-E Transparency Platform
Pan-European dataset for cross-market comparability of load, generation, and price time series.
OMIE (Iberian Power Market Operator)
Official day-ahead and intraday market prices and auction results for Spain and Portugal (MIBEL).
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