Exagen Wins Approval for 50-MW Solar Plus Storage

• Exagen secures planning for a 50MW UK solar park with co-located BESS—storing peak power and boosting grid stability. Next: detailed engineering, financing, and construction toward operation.

UK renewables developer Exagen said it has secured planning permission in England for a 50-MW solar park paired with a co-located battery energy storage system (BESS). The approval is another step in the company’s expanding portfolio of solar and storage projects across the country.

The battery is intended to store excess power generated during peak sunlight and release it when electricity demand rises, helping improve grid stability and increase the value of renewable output. Exagen said the project supports the UK’s push to accelerate renewables deployment and strengthen domestic energy security as intermittent solar generation grows. The company will now move to detailed engineering, procurement, financing and preparations for construction, targeting operation after those next phases.

How does Exagen’s approved 50-MW solar plus BESS project advance UK renewables?

• Expands England’s utility-scale solar pipeline, adding meaningful new clean generation capacity as the UK works to close the gap between current output and net-zero-aligned targets.
  
• Enhances the usefulness of solar power by pairing it with a co-located BESS, enabling more dispatchable renewable electricity rather than relying solely on when the sun is shining.
  
• Supports grid stability by absorbing short-term surpluses from midday solar generation and releasing energy during higher-demand periods, which can help reduce operational stress on distribution and transmission networks.
  
• Improves revenue potential and system performance by shifting part of the solar output into time windows where electricity is typically more valuable or more constrained.
  
• Helps manage intermittency as solar penetration grows, contributing to a more flexible mix that can better respond to fluctuations in demand and weather.
  
• Strengthens the UK’s energy security by increasing domestic generation that does not depend on imported fuels, while storage provides additional resilience during periods of tight supply.
  
• Builds experience and scale for solar-plus-storage delivery, supporting a maturing UK supply chain for inverters, transformers, grid interface equipment, and BESS components.
  
• Advances the transition toward a “firming” renewable model, aligning with wider system efforts to integrate more low-carbon generation while maintaining reliability standards.
  
• Provides a platform for further grid integration progress—once in detailed design, the project can refine connection requirements, grid studies, and control strategies that make future deployments smoother.
  
• Signals continued investor and developer confidence in UK renewables, which can help sustain momentum through the later stages of engineering, procurement, financing, and construction.