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N84 Grid

Cilfynydd 400kV Substation

NESO connection site, host NGET.

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Contracted here3.00 GWNot yet connected, as printed
Entries in the queue10entries with a printed MW
Earliest connection date1 Apr 2027Date printed in the register

The queue, in order

Order calculated by N84
First in queue1,842.8 MW across the first 6 projects
Order calculated by N84: printed queue position where the register gives one; otherwise entries printed as Gate 2 first, then every other entry by connection date. The register prints no gate for many contracted entries; N84 does not guess their position. Not published by the operator.

Dates in the queue

From the earliest date we hold to the connection date printed, in queue order

Order calculated by N84: printed queue position where the register gives one; otherwise entries printed as Gate 2 first, then every other entry by connection date. The register prints no gate for many contracted entries; N84 does not guess their position. Not published by the operator. Start is the accepted date as printed, else the date N84 first saw the row.
Table view
Dates in the queue
ProjectFromConnection dateMW
Twyn Hywel Cillfynydd31 May 20241 Apr 2027107.8 MW
Merthyr Solar and Battery31 May 202412 May 2029110 MW
BESS Cilfynydd31 May 202412 Jul 2029200 MW
Cilfynydd Green Energy Centre31 May 202430 Oct 2029400 MW
Cilfynydd31 May 202431 Oct 2030400 MW
Cilfynydd Green Energy Centre31 May 202431 Oct 2033625 MW
Cilfynydd BESS31 May 202415 Sep 2037349.9 MW
Penrhiwdarren Farm31 May 202415 Sep 2037500 MW
Cilfynydd 231 May 202415 Oct 2037240 MW
Merthyr Solar and Battery31 May 202431 Oct 203765 MW

Contracted MW as dates arrive

Running total by connection year, years to scale

0 MW2.0 GW4.0 GW2027: 108 MW2029: 818 MW2030: 1.2 GW2033: 1.8 GW2037: 3.0 GW2027202920312033203520373.0 GW
0 MW2.0 GW4.0 GW2027: 108 MW2029: 818 MW2030: 1.2 GW2033: 1.8 GW2037: 3.0 GW20272030203320373.0 GW
Order calculated by N84: printed queue position where the register gives one; otherwise entries printed as Gate 2 first, then every other entry by connection date. The register prints no gate for many contracted entries; N84 does not guess their position. Not published by the operator.
Table view
Cumulative MW by connection year
YearCumulative MW
2027107.8 MW
2029817.8 MW
20301,217.8 MW
20331,842.8 MW
20372,997.7 MW

MW ahead in N84's order: calculator

Order calculated by N84: printed queue position where the register gives one; otherwise entries printed as Gate 2 first, then every other entry by connection date. The register prints no gate for many contracted entries; N84 does not guess their position. Not published by the operator.

Queue

Queue (calculated by N84, method n84_order_v2)
Placecalculated by N84ProjectMW (as published)MW ahead (N84 order)Connection dateGateOrder groupStatus (as printed)
1Twyn Hywel Cillfynydd107.8 MW0 MW1 Apr 2027not statedgate not printedScoping
2Merthyr Solar and Battery110 MW107.8 MW12 May 20291gate 1Scoping
3BESS Cilfynydd200 MW217.8 MW12 Jul 2029not statedgate not printedScoping
4Cilfynydd Green Energy Centre400 MW417.8 MW30 Oct 20291gate 1Awaiting Consents
5Cilfynydd400 MW817.8 MW31 Oct 20301gate 1Awaiting Consents
6Cilfynydd Green Energy Centre625 MW1,217.8 MW31 Oct 20331gate 1Awaiting Consents
7Cilfynydd BESS349.9 MW1,842.8 MW15 Sep 20371gate 1Scoping
8Penrhiwdarren Farm500 MW2,192.7 MW15 Sep 20371gate 1Scoping
9Cilfynydd 2240 MW2,692.7 MW15 Oct 2037not statedgate not printedScoping
10Merthyr Solar and Battery65 MW2,932.7 MW31 Oct 20371gate 1Scoping

Receipt: MW and dates as printed in the NESO TEC Register, file dated 20 Oct 2026. Order calculated by N84: printed queue position where the register gives one; otherwise entries printed as Gate 2 first, then every other entry by connection date. The register prints no gate for many contracted entries; N84 does not guess their position. Not published by the operator. How we order

Contracted MW by effective-from year, as published
Year (MW effective from)ProjectsMW
20271107.8 MW
20293710 MW
20301400 MW
20331625 MW
203741,154.9 MW

Projects recorded at this site

Projects recorded at this site, as printed
Project (as published)TechnologyMWConnection dateStatus (as printed)
Cilfynydd Green Energy CentreHybrid1,025 MW31 Oct 2033Awaiting Consents
Penrhiwdarren FarmBattery storage500 MW15 Sep 2037Scoping
Cilfynydd (ENSO GREEN HOLDINGS X LIMITED)Hybrid400 MW31 Oct 2030Awaiting Consents
Cilfynydd BESSBattery storage349.9 MW15 Sep 2037Scoping
Cilfynydd 2 (REWE 8 LIMITED)Battery storage240 MW15 Oct 2037Scoping
BESS CilfynyddBattery storage200 MW12 Jul 2029Scoping
Merthyr Solar and BatterySolar175 MW31 Oct 2037Scoping
Twyn Hywel CillfynyddOnshore wind107.8 MW1 Apr 2027Scoping
Cilfynydd Grid Stability ServicesReactive compensation0 MW31 Mar 2027Consents Approved

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.