Electricity Market Design (EC DG ENER)

Overview page on EU electricity market design from the European Commission’s Directorate-General for Energy. Covers the structure of the EU electricity market, the 2024 reform, market coupling, and energy pricing models. Reflects the Commission’s position as of the clip date (2026-04-18).

Note: ongoing web page with no publication date; published in frontmatter is the clip date. Latest dated content is the 30 September 2025 day-ahead change.

Key facts

EU electricity market scale

• 11.3 million km of electricity lines and cables in the EU — enough to encircle the Earth 282 times
• Serves 266 million customers
• The EU internal energy market saves consumers EUR 34 billion annually; deeper integration could raise this to EUR 40–43 billion by 2030
• A Commission White Paper on deeper electricity market integration is due early 2026

Renewable energy share

• Renewables were 47.5% of EU gross electricity consumption in 2024 (Eurostat)
• Renewable share of electricity production expected to grow from 37% in 2020 to more than 60% by 2030

2024 reform timeline

• 14 March 2023: Commission proposal
• 16 November 2023: Provisional agreement on REMIT
• 14 December 2023: Provisional agreement on market design rules
• 21 May 2024: Adoption of Directive 2024/1711 and Regulation 2024/1747
• 16 July 2024: Reform rules enter into force
• 17 January 2025: Deadline for EU countries to transpose the rules into national law (the page does not say which instrument this applies to; a directive is what requires transposition)
• 2 July 2025: Commission publishes a recommendation and 3 guidance documents to support implementation of the market design reform, the revised Renewable Energy Directive and the Affordable Energy Action Plan
• 30 September 2025: Day-ahead market moves to 15-minute intervals

15-minute day-ahead market (implemented 30 September 2025)

The EU’s day-ahead electricity market moved from hourly to 15-minute trading intervals on 30 September 2025, as envisaged in the amended Electricity Regulation (EU/2019/943). Electricity prices are now calculated every 15 minutes, reflecting expected generation and demand more accurately. This change:

• Makes Europe’s electricity system more flexible and reliable (Commission’s wording)
• Readies it to integrate a growing share of variable renewable energy

The page files this under Market coupling (day-ahead and intraday coupling across regions via power exchanges and TSOs).

Energy pricing model: marginal (pay-as-clear)

The EU wholesale market uses marginal pricing (pay-as-clear): all electricity producers receive the same clearing price — the price bid by the last (most expensive) producer needed to satisfy demand. Key features:

• Renewables are produced at zero cost and are therefore by definition always the cheapest, so are bought first
• Bidding runs from cheapest to most expensive source until demand is met; everyone receives the price of the last producer bought from
• The page notes 2022 saw high and volatile energy prices, but does not itself attribute that to gas setting the clearing price (that link is wiki background, not this page’s statement)
• The Commission calls the marginal model the most efficient for liberalised markets (“general consensus”) and argues that in a pay-as-bid alternative, producers, including cheap renewables, would simply bid at the price they expect the market to clear, not at zero — so it would not provide cheaper prices

Reform objectives (Commission summary)

The 2024 reform aims to:

1. Make the market more resilient and make consumer and company bills less dependent on the short-term market price of electricity, via long-term contracts (PPAs) and two-way contracts for difference
2. Accelerate renewable deployment by improving investment conditions
3. Enhance protection against market manipulation (new enforcement regime with an enhanced ACER role in cross-border investigations)
4. Enhance supervision of reporting parties and data sharing between authorities; add market transparency via an LNG price assessment and benchmark; require non-EU companies to designate an EU representative

Related instruments not amended by the 2024 reform

• Regulation (EU) 2019/941 — Risk Preparedness Regulation: requires crisis scenario planning at national and regional levels; requires solidarity-based cross-border cooperation during crises; unchanged by 2024 reform

Relevance to wiki topics

• Electricity Market Design Reform 2024: this is the Commission’s own summary of the reform; provides official framing and the process timeline
• Balancing Markets: 15-minute day-ahead (30 Sep 2025) is a concrete day-ahead market structure change (the page does not discuss effects on intraday or balancing markets)
• Flexibility: the Commission’s EUR 34B annual savings from the internal market (EUR 40–43B by 2030 with deeper integration) contextualises the economic value of the EU market design