GB electricity market summary:
Q2 2025

Uncover the trends shaping the UK energy market

The Q2 2025 GB electricity market summary is your definitive guide to the most significant energy trends, challenges, and breakthroughs in the GB power market. This expert analysis provides in-depth insights into renewable energy milestones, pricing shifts, and the evolving role of imports and interconnectors. Stay informed with data-driven insights that empower you to make smarter decisions in the UK energy market.

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Q2-GB-electricity-market-summary-2025
What you’ll learn in the Q2 2025 market summary
  • Negative prices hours increasing
    • Above average temperatures for the season and strong renewable generation led to 112 negative price hours in Q2 2025, an increase on the 106 hours seen for the same period in 2024.

  • Price dynamics explained

    • Gas prices declined by almost 25% across the quarter, ending June at GBP 26.61/MWh.
    • Wholesale electricity prices rose by more than 8% on average compared to Q2 2024

  • Electricity generation and fuel mix
    Discover how renewables, gas, nuclear, and imports shaped the GB fuel mix:
    • Renewables: 51%
    • Gas: 22%
    • Nuclear: 15%
    • Imports: 12%

Key themes for energy professionals

Renewable energy growth

Understand how increased output affects prices and grid capacity.

The end of coal

Explore the implications of GB’s final coal-fired generation.

Impact of global events

Learn how geopolitical tensions and weather patterns influenced prices and demand.

Harnessing interconnectors

Learn how increased imports are enhancing reliability and bridging domestic shortfalls.