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N84 Grid

Walham 700MW BESS

Developer as published, connection site, reference: GPC 1154 Ltd. Walham 400kV Substation (NGET). PRO-002551.

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Capacity700 MWBattery storage, Gate 1
Connection date17 Nov 2033Status as printed: Scoping
First date seen 31 Oct 2038, difference -1809 dayscalculated by N84
MW ahead in N84's order at this site249 MWcalculated by N84

Connection date, edition by edition

2033203520372039File dated 2026-09-11: connection date 2038-10-31Oct 2038File dated 2026-10-20: connection date 2033-11-17Nov 203311 Sep202620 Oct2026
2033203520372039File dated 2026-09-11: connection date 2038-10-31Oct 2038File dated 2026-10-20: connection date 2033-11-17Nov 203311 Sep202620 Oct2026

Each step is a file that printed the connection date differently from the file before it. Year marks on the side are 1 January.

Observed changes

Showing changes in files dated from 23 Sep 2026.

  1. 20 Oct 2026. MW Effective From printed as 17 Nov 2033 (previous file: 31 Oct 2038), 1,809 days earlier. N84 holds no copy between 11 Sep 2026 and 20 Oct 2026; this change happened at some point in that time. -1809 dayscalculated by N84 Wide comparison Correction after an older file was importedReceipt: NESO TEC Register, file dated 20 Oct 2026, row 2083Receipt: NESO TEC Register, file dated 11 Sep 2026, row 2054

Supported by National Energy SO Open Data

Data as published by the named source on the stated date. N84 may contain matching or processing errors. Not investment, legal or technical advice. The official register prevails.