Understanding how GB flexibility revenues will evolve over the long-term is becoming one of the more challenging questions facing investors and developers in the sector.
As battery storage deployment scales, ancillary service markets face increasing saturation and wholesale arbitrage becomes a more dominant driver of returns, the long-term revenue stack for flexible assets is being reshaped. At the same time, Capacity Market dynamics, asset duration and the evolving interaction between wholesale and balancing revenues are creating a more complex picture for investors and developers to navigate.
Our Flexible Power Market Forecast service is designed to bring clarity to these dynamics and give you a well-evidenced basis for long-term planning.
To support your planning, we would like to offer you a complimentary overview of our latest Q1 2026 quarterly forecast, which includes:
- Where prices are going: How GB wholesale electricity prices are expected to evolve to 2050, including the influence of gas prices, new LNG supply, carbon costs and demand growth
- Key drivers: The role of electrification, data centre growth, generation build-out and system balancing needs in shaping the long-term market environment for flexible assets
- Revenues: How the revenue stack for battery storage and gas peakers may shift over time, including the growing importance of wholesale arbitrage and the outlook for Balancing Mechanism and Capacity Market income
- Value mix: What the changing balance across revenue streams means for assets of different durations, and how longer-duration BESS compares over a 35-year horizon
Request your complimentary overview using the link below and explore the themes shaping the long-term future of GB flexibility.
About the Flexible Power Market Forecast service
Our commercial due diligence-style quarterly report delivers a 35-year outlook across wholesale, Balancing Mechanism and Capacity Market revenues, technology economics and asset-level performance, supported by a fully transparent Excel databook, expert guidance and group sessions.
Whether you are assessing the investment case for a new project, comparing technologies and durations, stress testing revenue assumptions or preparing materials for an investment committee, the service gives investors, lenders and developers the clarity to apply long-term insights directly to their strategies.
To find out more about the full service, please contact David Ellis at d.ellis@cornwall-insight.com
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Flexibility Forecasts
Discover more: Flexibility ForecastsBankable long-term forecasts to help asset owners, developers, investors and stakeholders assess long-term costs and revenues, supporting successful commercial decisions and transactions. Our forecasts cover the full flexibility revenue stack for a range of technology types, while our asset optimisation tools provide site-specific and tailored insights.
