White Horse Reservoir (formerly SESRO)

What has changed on this project, and when

• Next milestone: DCO application later in 2026; main construction forecast to begin 2029 if consented; operating from 20402 November 2026 · previously: DCO application expected November 2026; construction start forecast 2029; in use by 2040
• Stage: Consenting (statutory consultation 28 October 2025 to 13 January 2026; DCO application planned later in 2026)2 November 2026 · previously: Consenting (RAPID gate 3 passed May 2026; DCO application late 2026)
• Status: In development2 November 2026 · previously: At tender
• Value: Not disclosed2 November 2026 · previously: ≈£7bn
• Next milestone: DCO application expected November 2026; construction start forecast 2029; in use by 204024 September 2026 · previously: DCO submission ~Nov 2026
• Stage: Consenting (RAPID gate 3 passed May 2026; DCO application late 2026)24 September 2026 · previously: Consenting, DCO application autumn 2026

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