Edition 2026 · Independent · 32 consultancies listed

Grid connection consultants, compared on the evidence.

An independent directory of UK consultancies that secure electricity grid connections for data centres, battery storage, solar, wind, EV charging hubs and industrial sites. Every firm is scored with the same published criteria.

See the 2026 ranking How we rank Find a consultant

Listed: 32
Verified: 00
Service lines: 11
Data checked: 07 Nov 2026

Fig. 1 · Distribution licence areas

Schematic · not to scale · 15 DNO licence areas

§01Connection type

What are you connecting? Start from the load or generator.

Each sector has its own connection sizes, voltages and regulatory issues. Pick one to see the consultancies with relevant project experience, ranked for that sector.

§02Directory

Service key

FS: Feasibility and grid capacity studies
CA: Connection applications
TX: NESO / transmission connections
DX: DNO / distribution connections
G9: G99 / G100 compliance
OR: Connection offer review
QM: Queue management and Gate 2
PW: Private wire and behind-the-meter
IC: ICP / IDNO delivery
PS: Power systems studies
PL: Planning support

All listed grid connection consultancies

Ranked by a published formulaMethodology

Showing 32 of 32

Grid connection consultancies, ranked
Rank	Consultancy	Services	DNO coverage	Typical size	Score
01	Green Cat Renewables Biggar · est. 2005 · 51-200 staff Unverified Wind · Solar · BESS	Services	DNO areas05/15	Size500 kW – 69 MW	Score59.4
02	Power On Connections Coventry · est. 2003 · 200+ staff Unverified Data centre · Industrial · Housing · BESS · Solar · Wind	Services	DNO areas14/15	Size500 kW – 100 MW	Score55.9
03	UCML Wrexham · est. 2004 · 16-50 staff Unverified Housing · Industrial · Data centre · Solar	Services	DNO areas04/15	Size350 kW – 3 MW	Score52.6
04	Aurora Power Consulting Bristol · est. 2007 · 6-15 staff Unverified BESS · Solar · Wind · Data centre · Industrial	Services	DNO areas00/15	Size10–250 MW	Score50.4
05	EnergyForce Withernsea · est. 2014 · 6-15 staff Unverified EV hubs · Industrial · Solar · BESS	Services	DNO areas14/15	Size40–250 kW	Score46.9
06	Blake Clough Consulting Slaithwaite · est. 2021 · 51-200 staff Unverified Wind · Solar · BESS · Data centre	Services	DNO areas00/15	Size50–110 MW	Score43.9
07	Fulcrum Sheffield · est. 2005 · 200+ staff Unverified Data centre · Housing · EV hubs · Industrial · Solar	Services	DNO areas02/15	Size100 kW – 49.9 MW	Score39.9
08	TNEI Manchester · est. 1999 · 51-200 staff Unverified Wind · Solar · BESS · Data centre · Industrial	Services	DNO areas00/15	Size1–200 MW	Score39.5
09	Pure Green Consulting Newport · est. 2017 · 6-15 staff Unverified Solar · BESS · Wind	Services	DNO areas01/15	Size25–600 MW	Score36.7
10	SLR Consulting London · est. 1994 · 200+ staff Unverified Wind · Solar · BESS · Data centre · Industrial · EV hubs	Services	DNO areas01/15	Size1–100 MW	Score35.9
11	Engineering Power Solutions Stockton-on-Tees · est. 2012 · 6-15 staff Unverified BESS · Wind · Solar · Data centre · Industrial	Services	DNO areas01/15	Size2–200 MW	Score34.2
12	Grid Connection Consulting Linlithgow · est. 2007 · 1-5 staff Unverified Wind · Solar · BESS	Services	DNO areas00/15	Size150 kW – 2000 MW	Score33.6
13	RSK Utility Consulting Ipswich · est. 2018 · 6-15 staff Unverified Wind · BESS · Solar · EV hubs · Housing · Industrial · Data centre	Services	DNO areas02/15	Size50 kW – 100 MW	Score32.6
14	Power and Grid Engineering Stoke-on-Trent · est. 2022 · 1-5 staff Unverified Solar · Wind · BESS · Data centre · Industrial	Services	DNO areas14/15	Size1–100 MW	Score31.6
15	Connectus Utilities Leicester · est. 2023 · 6-15 staff Unverified Housing · Industrial · Data centre	Services	DNO areas02/15	Size50 kW – 2 MW	Score30.1
15	DNO Renewables Blyth · est. 2024 · 1-5 staff Unverified Solar · BESS · EV hubs · Industrial · Housing	Services	DNO areas15/15	Size4 kW – 50 MW	Score30.1
17	Natural Power Castle Douglas · est. 1995 · 200+ staff Unverified Wind · Solar · BESS	Services	DNO areas00/15	Size5–100 MW	Score27.7
18	Decerna Cramlington · est. 2012 · 6-15 staff Unverified Wind · Solar · BESS	Services	DNO areas01/15	Size3–250 MW	Score27.4
19	Star Delta Power Holmfirth · est. 2018 · 1-5 staff Unverified BESS · Industrial	Services	DNO areas02/15	Size48.8–200 MW	Score27.1
20	PSE2 Consulting Bristol · est. 2016 · 6-15 staff Unverified EV hubs · Solar · Wind · BESS · Industrial	Services	DNO areas01/15	Size1–50 MW	Score25.4
21	ADTEK Newcastle upon Tyne · est. 2012 · 1-5 staff Unverified Wind · Solar · BESS	Services	DNO areas00/15	Size1–50 MW	Score22.9
22	Rapleys Huntingdon · est. 2004 · 51-200 staff Unverified Housing	Services	DNO areas00/15	Size100 kW – 5 MW	Score22.3
23	Action Renewables Belfast · est. 2003 · 1-5 staff Unverified Wind · Solar	Services	DNO areas01/15	Size50 kW – 10 MW	Score18.6
24	UK Power Engineers London · est. 2013 · 6-15 staff Unverified Solar · BESS · Industrial	Services	DNO areas00/15	Size10–50 MW	Score17.4
25	Locogen Edinburgh · est. 2009 · 16-50 staff Unverified Wind · Solar · BESS	Services	DNO areas00/15	Size20–110 MW	Score15.8
26	Roadnight Taylor Burford · est. 2013 · 16-50 staff Unverified Data centre · BESS · Solar · Wind · Industrial · Housing	Services	DNO areas00/15	Size1–100 MW	Score15.6
27	EA Technology Chester · est. 1990 · 51-200 staff Unverified BESS	Services	DNO areas00/15	Size100 kW – 50 MW	Score15.5
28	TriConnex Braintree · est. 2010 · 200+ staff Unverified Housing	Services	DNO areas00/15	Size100 kW – 12 MW	Score15.3
29	Artios Energy Edinburgh · est. 2021 · 1-5 staff Unverified Wind · Solar · BESS	Services	DNO areas00/15	Size1–100 MW	Score15.2
30	HZ Power London · est. 2021 · 1-5 staff Unverified Solar · BESS · Data centre	Services	DNO areas00/15	Size94 kW – 960 MW	Score13.4
31	Utility Connections Warrington · est. 2019 · 16-50 staff Unverified Data centre · Industrial · Solar · BESS	Services	DNO areas00/15	Size100 kW – 20 MW	Score12.6
32	Utility Source Rotherham · est. 2018 · 6-15 staff Unverified Housing · Industrial	Services	DNO areas00/15	Size10 kW – 1 MW	Score9.5

Service key

FS: Feasibility and grid capacity studies
CA: Connection applications
TX: NESO / transmission connections
DX: DNO / distribution connections
G9: G99 / G100 compliance
OR: Connection offer review
QM: Queue management and Gate 2
PW: Private wire and behind-the-meter
IC: ICP / IDNO delivery
PS: Power systems studies
PL: Planning support

§03Regions

Consultancies by region

Your region decides which network operator you deal with. Each region page explains the local DNO and transmission owner, with consultancies that work there.

§04Method

One formula for every firm.

Scores come from the listing data alone: documented projects, services offered, network areas covered, whether we have verified the details, and years trading.

3020202010

Track record 30%Service breadth 20%Network coverage 20%Verification 20%Experience 10%

Read the full methodology

§05Editors

Who maintains this directory

Listings are compiled and checked by named people with network-side experience. About us and our editorial policy.