Consultancy profile · GCC-C27
TNEI
Manchester-based energy consultancy whose connections team carries out power system studies, G99 and Grid Code compliance work, connection applications and offer reviews for distribution and transmission projects. It also develops the IPSA power systems software and offers planning and consenting services.
- Overall rank
- 08 of 32
- Score
- 39.5
- Headquarters
- Manchester
- Founded
- 1999
- Team
- 51-200 staff
- Typical size
- 1–200 MW
- Status
- Unverified · seen 07 Nov 2026
Ranked by a published formulaMethodology
§01Services
Services offered
8 of our 11 service lines. Legal advice is outside the scope of this directory.
- FSFeasibility and grid capacity studies(offered)
- CAConnection applications(offered)
- TXNESO / transmission connections(offered)
- DXDNO / distribution connections(offered)
- G9G99 / G100 compliance(offered)
- ORConnection offer review(offered)
- QMQueue management and Gate 2(not offered)
- PWPrivate wire and behind-the-meter(not offered)
- ICICP / IDNO delivery(not offered)
- PSPower systems studies(offered)
- PLPlanning support(offered)
§02Sectors
§03Coverage
Regions and network areas
Regions served
- Scotland
- North East England
- North West England
- Yorkshire and the Humber
- East Midlands
- West Midlands
- Wales
- East of England
- London
- South East England
- South West England
- Northern Ireland
DNO licence areas worked in (0/15)
- SHEPDSSEN
- SPDSPEN
- NPgNNPg
- ENWLSPEN
- SPMSPEN
- NPgYNPg
- SWALESNGED
- WMIDNGED
- EMIDNGED
- EPNUKPN
- SWESTNGED
- SEPDSSEN
- LPNUKPN
- SPNUKPN
- NIENIE
§04Projects
Notable projects
| Project | Sector | Capacity | Year | Location |
|---|---|---|---|---|
| Coalburn battery storage Section 36 consent (Zenobe)Role: Prepared and submitted the Section 36 application | BESS | 200 MW | — | South Lanarkshire |
| High Boydstone Farm battery storage Section 36 consent (NEP)Role: Prepared and submitted the Section 36 application | BESS | 100 MW | — | North Ayrshire |
| Distributed ReStartRole: Project partner with National Grid ESO and SP Energy Networks | — | — | — | — |
As stated by the firm.
§05Credentials
Accreditations
- ISO 9001
- ISO 14001
- ISO 45001
- Achilles UVDB Verify
Contact
- Website
- tneigroup.com
- info@tneigroup.com
- Phone
- 0161 233 4800
- Address
- 5th Floor, 10 Chapel Walks, Manchester
- HQ
- Manchester
§06Score
How this firm scores
Ranked by a published formulaMethodology
39.5out of 100 · rank 08
- Track record
- 15.0/30
- Service breadth
- 14.5/20
- Network coverage
- 0.0/20
- Verification
- 0.0/20
- Experience
- 10.0/10
§07Corrections
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Profile last checked 07 Nov 2026 · Other regions: