Battery energy storage systems earned £76k/MW/year in June 2025 - a 20% increase in revenues from May 2025.
High renewable generation led to 66 hours of negative pricing - compared to 35 in the same month in 2024. This, combined with price spikes during heatwaves in late June, resulted in a 35% increase in intraday price spreads.
For subscribers to Modo Energy’s Research, this article will also cover:
- A breakdown of the change in revenues from each service
- How high renewable generation impacted price spreads
- An overview of battery availability and competitiveness in the Balancing Mechanism
- Changes in Balancing Mechanism dispatch rates and revenues
- A data download of all charts
Battery revenues increase by 20% in June 2025
In June 2025, battery energy storage systems in Great Britain earned £76k/MW/year - the first rise in revenues in three months.
Batteries earned 53% of their revenues from wholesale trading and the Balancing Mechanism. This figure has only been higher once before, in October 2024.
