# National Grid advances 400 kV Tees Dock substation in northeast England

National Grid Electricity Transmission signed an agreement to purchase over 70 acres at Dorman Point within the Teesworks industrial estate for a proposed 400 kV transmission substation. The facility is designed to support over 1 GW of connection capacity for industrial and data-center developments.

- Type: New facility
- Announced: 2026-11-01
- Where: Teesworks industrial estate, northeast England, United Kingdom
- Status: announced
- Capacity: over 1 GW connection capacity
- Products: 400 kV transmission substation, gas-insulated switchgear
- Sectors: [Electrical Equipment](https://endata.com/sectors/electrical-equipment.md)

## Companies

- [National Grid Electricity Transmission](https://endata.com/companies/11337.md)

## Sources

- [datamintelligence.com](https://www.datamintelligence.com/news/national-grid-tees-dock-400kv-substation-ai-data-center), 2026-11-03: "National Grid's head of lands confirmed the agreement was an important step towards developing the proposed Tees Dock electricity substation."

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Data from Endata (https://endata.com/). Announcements are summarized from public sources and may be incomplete; check the linked originals.