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Construction Contract Leads

Scope

Reference

TGCENVBASAPR26

Description

Trydan Gwyrdd Cymru (Trydan) is seeking to procure the following professional services for large-scale wind farm developments in Wales.

• Baseline ornithological surveys and reporting.

• Baseline habitat classification, soils, and peat surveys and reporting.

Trydan is looking to create a Framework for these lots. Trydan will then procure the services through call-off contracts. Trydan is looking to appoint a maximum of three Contractors per lot.

Commercial tool

Establishes a framework

Total value (estimated)

• £1,750,000 excluding VAT
• £2,100,000 including VAT

Above the relevant threshold

Contract dates (estimated)

• 21 July 2026 to 20 July 2030
• 4 years

Main procurement category

Services

CPV classifications

• 71314300 - Energy-efficiency consultancy services

Contract locations

• UKL - Wales

Lot constraints

Description of how multiple lots may be awarded:

See Tender pack for full details

Lot 1. Baseline Ornithology Services

Description

Lot 1: Baseline Ornithological Services – including, but not limited to, the following:

 Vantage-point surveys to record flight lines of ‘target species.’

 Walkover (breeding) bird survey work.

 Species specific surveys for Schedule 1 (Wildlife and Countryside Act) species.

 Surveys for nightjar.

Lot value (estimated)

• £1,400,000 excluding VAT
• £1,680,000 including VAT

Framework lot values may be shared with other lots

Same for all lots

CPV classifications, contract locations and contract dates are shown in the Scope section, because they are the same for all lots.

Lot 2. Baseline Habitat Services

Description

Lot 2: Baseline Habitat Services – including the following:

 Peat and soil probing surveys.

 Phase 1 Habitat Surveys.

 Extended Phase 1 Habitat Survey.

 National Vegetation Classification Survey (of semi-natural plant communities).

Lot value (estimated)

• £350,000 excluding VAT
• £420,000 including VAT

Framework lot values may be shared with other lots

Same for all lots

CPV classifications, contract locations and contract dates are shown in the Scope section, because they are the same for all lots.

Framework

Maximum number of suppliers

Unlimited

Maximum percentage fee charged to suppliers

0%

Framework operation description

Trydan will operate a mini competition process for awarding call off contracts. Full details of this are in the Tender Pack.

Award method when using the framework

Either with or without competition

Contracting authorities that may use the framework

Establishing party only

Participation

Legal and financial capacity conditions of participation

Lot 1. Baseline Ornithology Services

Lot 2. Baseline Habitat Services

See Tender Pack

Technical ability conditions of participation

Lot 1. Baseline Ornithology Services

Lot 2. Baseline Habitat Services

See Tender Pack

Particular suitability

Lot 1. Baseline Ornithology Services

Lot 2. Baseline Habitat Services

• Small and medium-sized enterprises (SME)
• Voluntary, community and social enterprises (VCSE)

Submission

Enquiry deadline

20 May 2026, 10:00am

Tender submission deadline

9 June 2026, 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)

8 July 2026

Award criteria

Other information

Payment terms

See Tender Pack

Description of risks to contract performance

See Tender Pack

Conflicts assessment prepared/revised

Yes

Procedure

Procedure type

Open procedure

Documents

Associated tender documents

ITT: itt_124301 - Trydan Environmental Baseline Framework

Technical specifications to be met

ITT: itt_124301 - Trydan Environmental Baseline Framework

Contracting authority

Trydan Gwyrdd Cymru

• Public Procurement Organisation Number: PDYQ-4323-NPMH

Welsh Government Office

Merthyr Tydfil

CF48 1UZ

United Kingdom

Contact name: Katie Carey

Telephone: +447591340779

Email: caffael [at] trydangwyrddcymru.wales

Website:

Region: UKL15 - Central Valleys

Organisation type: Public authority - sub-central government

Devolved regulations that apply: Wales