ACER releases its Opinion on Spain’s National Resource Adequacy Assessment (NRAA). This national assessment complements the European Resource Adequacy Assessment (ERAA) 2024, reflecting recent developments in the country’s electricity system.
On 4 November 2025, the EU DSO Entity submitted its updated statutory documents to the European Commission and ACER. To inform its Opinion, ACER will conduct a consultation to gather inputs from organisations representing all stakeholders.
ACER’s 2025 electricity Monitoring Report reviews progress in integrating EU electricity markets. It examines forward, day-ahead, intraday and balancing markets, and identifies where rules and projects are delayed.
The Spanish energy regulatory authority has imposed a €1 million fine on Enet Energy for attempting to manipulate the national organised gas market eight times from April to May 2023.
This report on gas network use provides a comprehensive overview of capacity booking and usage trends in the EU, exploring how diversified supply, demand shifts and evolving capacity booking strategies are reshaping gas flows across the EU.
ACER’s latest report on key developments in European gas wholesale markets examines key trends in gas supply, demand and market prices during the final months of the gas summer season (July to September 2025).
ACER’s 2026 Monitoring Report on energy infrastructure development in Europe examines whether electricity, gas and hydrogen networks are adapting to changing energy needs, and what this means in terms of investment costs, delays and costs for consumers.
