Sundon

Grid supply point in Eastern Power Networks (EPN)

UKPN Embedded Capacity Register 2 – 1MW and above, October 2026 edition

70sites of 1 MW and over

1.1 GWcapacity

0.5 GWconnected (49 sites)

0.6 GWaccepted to connect (21 sites)

Capacity by technology

Technology	Sites	Capacity	Connected	Accepted to connect
Solar	40	733 MW	152 MW	581 MW
Gas and other fossil	11	156 MW	106 MW	50 MW
Storage	5	133 MW	103 MW	30 MW
Bioenergy and waste	10	106 MW	106 MW	–
Wind	4	10.1 MW	10.1 MW	–

Storage capacity in MWh: no site here states any.

Each site is grouped by its first energy source, as the register names it.

How busy is each primary substation?

Each primary substation at this grid supply point in the October 2026 edition, under the bulk supply point its register gives. Select a row to see its sites.

Site, company and substation names are shown as they appear in the registers, including capitalisation.

Primary substation

Bulk supply point

Sites

Connected

Accepted to connect

Sundon 33kV

7.6 MW

5.1 MW

4 sites, 12.7 MW: 7.6 MW connected, 5.1 MW accepted to connect

Site	Customer	Technology	Status	MW
(ANM) Great Billington	Arnold White Group	Solar	Accepted to connect	5.1
(ANM) Checkley Wood	Checkley Wood Energy Limited	Wind	Connected	4.1
Checkley Wood	MJS Grid Services Limited	Solar	Connected	2
Eastern Way	Arnold White Estates	Wind	Connected	1.5

Sundon 33kV

6.1 MW

–

Sundon 33kV

2 MW

–

Sundon 33kV

1.8 MW

–

Sundon 33kV

91 MW

70 MW

6 sites, 161 MW: 91 MW connected, 70 MW accepted to connect

Site	Customer	Technology	Status	MW
Chalgrave Manor	Aton Energy Development (Sundon) Limited	Solar	Accepted to connect	50
Luton Road	ReThink Energy Limited	Storage	Connected	49.5
(ANM) Grounds Farm	Chilterns Renewables Hockliffe Limited	Solar	Connected	20
(ANM) Leighton Road	Econergy Renewable Energy Limited	Solar	Accepted to connect	20
Trinity Hall Farm Solar Park	Trinity Solar Farm Limited	Solar	Connected	15
Manor Farm Solar Park	Lightsource Renewable Energy Limited	Solar	Connected	6

Aylesbury East Grid 33kV

12.1 MW

12 MW

4 sites, 24.1 MW: 12.1 MW connected, 12 MW accepted to connect

Site	Customer	Technology	Status	MW
(ANM) A41	CX Utilities Limited	Solar	Accepted to connect	12
Westcott Venture Solar Park	BNP Paribas Depositary Services (Jersey)	Solar	Connected	8
Westcott Venture Park	Shanks Waste Management Limited	Bioenergy and waste	Connected	3
Westcott Venture Park, Phase 2A and Phase 2B	Shanks Waste Management Limited	Solar	Connected	1.1

Aylesbury East Grid 33kV

6 MW

–

Aylesbury East Grid 33kV

4 MW

–

Aylesbury East Grid 33kV

42.5 MW

39.5 MW

5 sites, 82 MW: 42.5 MW connected, 39.5 MW accepted to connect

Site	Customer	Technology	Status	MW
(ANM) Straws Hadleys	Qair Renewables UK Limited	Solar	Accepted to connect	39.5
Aston Clinton Farm	Haymaker Energy Limited	Solar	Connected	20
Folly Farm	Hive Energy Limited	Solar	Connected	15
Drayton Mead Farm	Haymaker Energy Limited	Solar	Connected	4.5
Quarrendon Fields	Farm Wind Limited	Wind	Connected	3

Westoning Grid 33kV

7 MW

–

Westoning Grid 33kV

1.8 MW

–

Westoning Grid 33kV

24.6 MW

60.5 MW

6 sites, 85.1 MW: 24.6 MW connected, 60.5 MW accepted to connect

Site	Customer	Technology	Status	MW
Brogborough Solar Farm	Infinis Energy Services Limited	Solar	Accepted to connect	30.5
(ANM) Greenfield Road	Cragside Energy Limited	Storage	Accepted to connect	30
Brogborough Power Station T1, T2, T3, T4	Infinis Limited	Bioenergy and waste	Connected	10.5
Land North Of Clayhill Farm	Anesco	Solar	Connected	8.8
Hermitage Solar Farm	Evans Energy Limited	Solar	Connected	4.1
Clayhill Farm Greenfield Road	Anesco Limited	Storage	Connected	1.2

Marston Road Grid 33kV

3.7 MW

–

Marston Road Grid 33kV

1.4 MW

–

Marston Road Grid 33kV

25.8 MW

37.3 MW

4 sites, 63.1 MW: 25.8 MW connected, 37.3 MW accepted to connect

Site	Customer	Technology	Status	MW
(ANM) Broadmead Road	RSK Utility Consutling Limited	Solar	Accepted to connect	20
(ANM -N/A) Green Lane	Infinis Limited	Solar	Accepted to connect	17.3
The Power Station (S& M)	Infinis	Bioenergy and waste	Connected	13.75
Woburn Road	Eclipse Power networks Limited	Storage	Connected	12

Luton South Grid 33kV

10 MW

58 MW

3 sites, 68 MW: 10 MW connected, 58 MW accepted to connect

Site	Customer	Technology	Status	MW
(ANM) Darley Road	EPL 002 Limited	Solar	Accepted to connect	35
Land Around Chiltern Green And West Hyde Road	Boultbee Brooks (Renewables Luton Hoo) Limited	Solar	Accepted to connect	22.99
Lawrence End Park	Solar Inc Limited	Solar	Connected	10

Luton North Grid 132/33kV

–

30 MW

Houghton Regis Grid 33kV

5 MW

–

Houghton Regis Grid 33kV

3 MW

–

Houghton Regis Grid 33kV

1 MW

–

Houghton Regis Grid 33kV

16.2 MW

–

3 sites, 16.2 MW: 16.2 MW connected

Site	Customer	Technology	Status	MW
Great Seabrook (Elsage Farm)	Camborne Energy Investments	Solar	Connected	6
Church Farm Slapton	Solar Inc Limited	Solar	Connected	5.2
Millfield Farm	Raybridge Corporation	Solar	Connected	5

Austin Canons Grid 33kV

12.8 MW

4 MW

4 sites, 16.8 MW: 12.8 MW connected, 4 MW accepted to connect

Site	Customer	Technology	Status	MW
Clapham Solar Farm	The Solar Building Company Limited	Solar	Connected	7.05
(ANM - N/A) Crown Hills	Sirius Ecodev (Clapham) Limited	Solar	Accepted to connect	4
Building 16	Twinwoods Heat & Power Limited	Bioenergy and waste	Connected	3.2
Manton Lane	Aggregated Micro Power Holdings	Bioenergy and waste	Connected	2.5

Austin Canons Grid 33kV

3.5 MW

–

Austin Canons Grid 33kV

1.8 MW

–

Austin Canons Grid 33kV

1.6 MW

–

Luton South Grid 132/33kV

–

20 MW

Not stated

10.1 MW

–

Not stated

175 MW

325 MW

10 sites, 500 MW: 175 MW connected, 325 MW accepted to connect

Site	Customer	Technology	Status	MW
Buncefield Lane	Freedom Power Solutions	Gas and other fossil	Connected	68.6
Rookery Pit	Covanta Rookery	Bioenergy and waste	Connected	66.4
(ANM) Land Near Ledburn	Ascott Estate Solar Limited	Solar	Accepted to connect	49.99
(ANM) New Bury Farm	Interguide Group	Solar	Accepted to connect	49.99
Tring Road	Terra Firma Energy Limited	Gas and other fossil	Accepted to connect	49.99
Wood Lane	QC Ubertino Limited	Solar	Accepted to connect	49.9
Hale Farm, Hulcott	EEB31 Limited	Solar	Accepted to connect	45.3
Quakers House	North Crawley Energy Centre Limited	Solar	Accepted to connect	45
Westoning Road	Green Frog	Storage	Connected	40
Clayhill Farm (Clayhill 2)	Anesco Limited	Solar	Accepted to connect	34.9

What changed recently

Changes to the sites here found in both of two consecutive monthly editions, the latest first.

September 2026 edition to October 2026 edition: 70 sites matched. Every September site and every October site at this grid supply point had a match in the other edition.

No change to the status, capacity, technology or customer of the sites here in the editions of UKPN's register QueueWatch holds.

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What you get from QueueQuant

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How bad the worst outcomes get, at the risk level you choose

How power reaches a site

A grid supply point (GSP) is where the national grid hands power to the local network. A bulk supply point (BSP) steps it down to a lower voltage for an area. A primary substation steps it down again for the streets and sites nearby. Most small and medium sites connect at a primary. Not every network has all three levels.