Scope
Reference
TGCDEVMAY25
Description
Trydan is seeking to procure professional services for two wind farm developments in South Wales, from conceptual design through to securing planning consent. These services include:
• Lot 1: Environmental Impact Assessment (EIA) Support and Technical Support.
• Lot 2: Terrestrial Ecology and Ornithology.
• Lot 3: Planning Support.
• Lot 4: Civil Engineering Support.
Trydan is looking for a single leading Contractor for each individual Lot. The successful leading Contractor for each lot will be responsible for delivering the proposed services for both wind farm projects.
Total value (estimated)
- £3,500,000 excluding VAT
- £4,200,000 including VAT
Above the relevant threshold
Main procurement category
Services
CPV classifications
- 71314200 - Energy-management services
Contract locations
- UKL - Wales
Lot constraints
Description of how multiple lots may be awarded:
Supplier can bid and win all lots. Each lot will be evaluated separately.
Not the same for all lots
Contract dates are shown in Lot sections, because they are not the same for all lots.
Lot 1. Environmental Impact Assessment (EIA) Support and Technical Support.
Description
The appointed Contractor will be responsible for co-ordinating and managing the EIA for both projects. The Contractor will deliver external facing documentation, including (but not limited to) the EIA Scoping Report and Environmental Statement, which will support the planning application for each project. As part of the EIA process, the appointed Contractor will draw on baseline information, stakeholder engagement, and best practice methods to deliver the scope of services identified within each of the work packages. In addition, the appointed Contractor will work closely with Trydan, and the successful Contractor(s) from Lots 2-4, to develop an infrastructure design for each project that balances environmental, planning, technical, engineering, and commercial considerations.
Lot value (estimated)
- £2,000,000 excluding VAT
- £2,400,000 including VAT
Contract dates (estimated)
- 8 September 2025 to 7 September 2028
- Possible extension to 7 September 2029
- 4 years
Description of possible extension:
Lot 1: EIA Support and Technical Support - £500,000.
Same for all lots
CPV classifications and contract locations are shown in the Scope section, because they are the same for all lots.
Lot 2. Terrestrial Ecology and Ornithology
Description
The appointed Contractor will be responsible for co-ordinating ecological and ornithological surveys for both projects. The Contractor will also be responsible for inputting to external facing documentation, including (but not limited to) inputs to the EIA Scoping Report and Environmental Statement, which will support the planning application for each project. As part of the EIA process, the appointed Contractor will draw on baseline information, stakeholder engagement, and best practice methods to deliver the scope of services identified within each of the work packages. In addition, the appointed Contractor will work closely with Trydan to develop a site-wide Net Benefit for Biodiversity strategy for each project.
Lot value (estimated)
- £900,000 excluding VAT
- £1,080,000 including VAT
Contract dates (estimated)
- 8 September 2025 to 7 September 2028
- Possible extension to 7 September 2029
- 4 years
Description of possible extension:
Terrestrial Ecology and Ornithology - £200,000.
Same for all lots
CPV classifications and contract locations are shown in the Scope section, because they are the same for all lots.
Lot 3. Planning Support
Description
The appointed Contractor will be responsible for advising on the planning strategy and deliverables for both projects. The appointed Contractor will act on behalf of Trydan to submit the planning application for both projects to Planning and Environment Decisions Wales, a role which will also include delivering external facing documentation, including (but not limited to) the Planning Statement and Green Infrastructure Statement. The appointed Contractor will play an integral role in co-ordinating and contributing to the determination phase of both planning applications.
Lot value (estimated)
- £300,000 excluding VAT
- £360,000 including VAT
Contract dates (estimated)
- 8 September 2025 to 7 September 2028
- Possible extension to 7 September 2029
- 4 years
Description of possible extension:
Lot 3: Planning Support - £150,000.
Same for all lots
CPV classifications and contract locations are shown in the Scope section, because they are the same for all lots.
Lot 4. Civil Engineering Support
Description
The appointed Contractor will be responsible for providing civil engineering and geotechnical / mining expertise to inform the infrastructure design for each project. In addition, the appointed Contractor will advise and, if required, support the delivery of site investigation works at both projects.
Lot value (estimated)
- £300,000 excluding VAT
- £360,000 including VAT
Contract dates (estimated)
- 8 September 2025 to 7 September 2028
- Possible extension to 7 September 2029
- 4 years
Description of possible extension:
Civil Engineering Support. - £150,000.
Same for all lots
CPV classifications and contract locations are shown in the Scope section, because they are the same for all lots.
Participation
Legal and financial capacity conditions of participation
Lot 1. Environmental Impact Assessment (EIA) Support and Technical Support.
Lot 2. Terrestrial Ecology and Ornithology
Lot 3. Planning Support
Lot 4. Civil Engineering Support
See Tender Pack
Technical ability conditions of participation
Lot 1. Environmental Impact Assessment (EIA) Support and Technical Support.
Lot 2. Terrestrial Ecology and Ornithology
Lot 3. Planning Support
Lot 4. Civil Engineering Support
See Tender Pack
Particular suitability
Lot 1. Environmental Impact Assessment (EIA) Support and Technical Support.
Lot 2. Terrestrial Ecology and Ornithology
Lot 3. Planning Support
Lot 4. Civil Engineering Support
- Small and medium-sized enterprises (SME)
- Voluntary, community and social enterprises (VCSE)
Submission
Enquiry deadline
16 June 2025, 10:00am
Tender submission deadline
30 June 2025, 10:00am
Submission address and any special instructions
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
19 August 2025
Award criteria
| Name | Type | Weighting |
|---|---|---|
| Technical Submission | Quality | 80.00% |
| Commercial Submission | Cost | 20.00% |
Other information
Applicable trade agreements
- Government Procurement Agreement (GPA)
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Open procedure
Documents
Associated tender documents
https://etenderwales.bravosolution.co.uk/home.html
ITT: itt_116525 - Trydan Project Development Services Tender
Technical specifications to be met
https://etenderwales.bravosolution.co.uk/home.html
ITT: itt_116525 - Trydan Project Development Services Tender
Contracting authority
Trydan Gwyrdd Cymru
- Companies House: 15207429
Welsh Government Office
Merthyr Tydfil
CF48 1UZ
United Kingdom
Contact name: Katie Carey
Telephone: +447591340779
Email: caffael@trydangwyrddcymru.wales
Website: http://www.trydangwyrddcymru.wales
Region: UKL15 - Central Valleys
Organisation type: Public authority - sub-central government
Devolved regulations that apply: Wales