Projects · Battery Storage

Pembroke (Pembroke Net Zero Centre), Pembrokeshire, Wales, UK·In developmentBattery Storage

Pembroke BESS

  • StageFinal investment decision taken December 2025; construction planned from H1 2026
  • ValueApproximately £200 million
  • Next milestoneConstruction; commissioning H2 2028, subject to grid connection
  • Last checked1 November 2026
Source: RWE, RWE to build its largest battery energy storage facility in the UK →

What has changed on this project, and when

  • Next milestone: Construction; commissioning H2 2028, subject to grid connection2 November 2026 · previously: Construction from H1 2026; commissioning H2 2028
  • Stage: Final investment decision taken December 2025; construction planned from H1 20262 November 2026 · previously: FID taken (Dec 2025); pre-construction, RWE: construction to start H1 2026, no site mobilisation evidenced
  • Status: In development2 November 2026 · previously: At tender

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