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N84 Grid

Biggleswade BESS

Developer as published, connection site, reference: Central Bedfordshire Council. Biggleswade 400kV Substation (NGET). PRO-002165.

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Capacity57 MWBattery storage, Gate 1
Connection date28 Sep 2029Status as printed: Scoping
First date seen 31 Oct 2029, difference -33 dayscalculated by N84
MW ahead in N84's order at this site0 MWcalculated by N84

Connection date, edition by edition

20292030File dated 2026-09-11: connection date 2029-10-31Oct 2029File dated 2026-10-20: connection date 2029-09-28Sep 202911 Sep202620 Oct2026
20292030File dated 2026-09-11: connection date 2029-10-31Oct 2029File dated 2026-10-20: connection date 2029-09-28Sep 202911 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 28 Sep 2029 (previous file: 31 Oct 2029), 33 days earlier. N84 holds no copy between 11 Sep 2026 and 20 Oct 2026; this change happened at some point in that time. -33 dayscalculated by N84 Wide comparison Correction after an older file was importedReceipt: NESO TEC Register, file dated 20 Oct 2026, row 194Receipt: NESO TEC Register, file dated 11 Sep 2026, row 192

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.