Official UK procurement notice
Farmoor: Floating Photo Voltaic (FPV) Installations
Authority: THAMES WATER UTILITIES LIMITED
What is being bought
Published requirement descriptionProject to include funding, design, build, ownership, operation and maintenance for the Farmoor Floating Solar PV (FPV) Project for up to 4MW, with a standard Power Purchase Agreement (PPA) in place (£ per kWh), with commitment from TWUL to take all energy generated from the installation. The total value of this project will be determined by the PPA price as per the agreed bid sheet, over the term of the agreement.
The scope of work is summarised in the non-exhaustive list below: full design and engineering, procurement, full MEICA installation, commissioning (including commissioning activities at point of connection), Distribution Network Operator (DNO) witnessing, testing and approval to satisfy the terms of the connection agreement or offer, supporting OFGEM accreditation for REGOs, operation and maintenance, monthly and annual reporting, training of emergency procedures, training of essential operational activities, documentation, demarcation fencing and signage, biodiversity net gain requirements and any visual impact requirements.
The PV installation will be floating with a maximum capacity of 4MW. The Supplier shall design and optimise the size of the PV plant for behind-the-meter use and achieve an attractive payback period and NPV. The PV plant shall require inhibiting when the board is being fed from the generator or in an island situation.
The PV plant shall utilise the most efficient and appropriate components to ensure an efficient and low-maintenance system.
The scope will be awarded via PPA model, with a subsequent Lease Agreement, with only one supplier to be awarded.
- How the procedure runs: The PSQ will have one 'General & technical PSQ' questionnaire which all bidders are required to complete. Responses to this PSQ will be evaluated against selection criteria, to select bidders to proceed to the next stage of this procurement process. We will short list the top scoring 8-10 bidders who will progress to the ITN stage. The selection criteria will be a combination of financial and non-financial factors and will include: a) Legal and financial capacity to perform the contract; b) Technical ability to perform the contract There are three types of questions: 1. Pass/Fail Questions Pass/Fail questions are stated as such in the Questions. Failure to meet our requirements in these questions may result in elimination of the Bidder 2. Weighted Questions The scores given for weighted questions are used to calculate the final score. 3. For information only Some questions are for information only; these will not be scored We are evaluating your submission through the following evaluation methods and high-level criteria: 1. Organization Questions including financial and economic standing, Forms of Security, Health and Safety etc. 2. Technical Questions including Experience, Capability, O&M Experience, Environment, Workforce and Subcontractors, Innovation and Quality Assurance We will score the PSQ submissions and shortlist the bidders who pass the selection criteria required to progress to the next stage. We will shortlist the top scoring 8-10 bidders, with the top scores, who will progress to the ITN stage. We will evaluate your response in the ITN through the following criteria: 1. MAT We will evaluate your response in accordance with Most Advantageous Tender (MAT) award criteria. Both technical and commercial responses will be scored in detail and weighted to give an overall score. 2. Pass/Fail Questions Pass/Fail questions are stated as such in the Questions. Failure to meet our requirements in these questions may result in elimination of the Bidder 3. Weighted Questions The scores given for weighted questions are used to calculate the final score. 4. For information only Some questions are for information only; these will not be scored We are evaluating your submission through the following evaluation methods: 1. Technical (50% weighting) 2. Commercial (50% weighting) This is a 3 Stage ITN Process, where we reserve the right to shortlist 3-5 bidders through to ITN Stage 2, with their Stage 1 scores being carried over, and their technical score being reapportioned. The highest scoring bidder ITN stage 2 will move through to ITN stage 3, to negotiate the final agreement,
CPV: Solar energy
The lotProcurement structure
single lot · value publishedLot #1RenewalPublished value£0
What it takes to wini
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Evaluation split and conditions of participation as published; the tender pack may add morei
How this buyer will score bids.
The evaluation criteria and weights exactly as published on the notice, grouped by family (price, quality, social value and so on).
Published sub-criteria (2)
- Technical: 50%
- Commercial: 50%
Published award criteria (2)
- Technical
- Commercial
- Price carries 50 of 100 points: a 10% discount moves about 5 points. This one is won on the number: sharpen the price before polishing the prose.
Price arithmetic assumes straight proportional scoring; the tender pack may use another formula.
Procedure terms & legal framework
From the official record- Procedure method
- Competitive flexible procedure
- Legal basis
- UKPGA · 2023/54 Procurement Act 2023
- Procurement category
- Goods
- Notice status
- Closed
- Procurement threshold
- Above threshold (FTS publication)
- Regulatory regime
- Utilities
- Commercial structure
- Stand-alone contract (no framework)
- Competition type
- Competitive procedure
- GPA / WTO covered
- Unspecified in notice
- Recurring procurement
- Unspecified in notice
- First published
- 26 Sept 2025, 09:31 BST
- Last source update
- 26 Sept 2025, 09:31 BST
- Award evaluation window
- Submission end – 24 Apr 2026
- Authority reference
TC2252- FTS notice number
2025/S 000-059958- Latest notice
- Tender notice (UK4)
- Classification (CPV)
- Delivery area
- Official registry OCID
ocds-h6vhtk-05a2b9Find a Tender
- How it runs
The PSQ will have one 'General & technical PSQ' questionnaire which all bidders are required to complete. Responses to this PSQ will be evaluated against selection criteria, to select bidders to proceed to the next stage of this procurement process. We will short list the top scoring 8-10 bidders who will progress to the ITN stage.
The selection criteria will be a combination of financial and non-financial factors and will include:
a) Legal and financial capacity to perform the contract;
b) Technical ability to perform the contract
There are three types of questions:
- Pass/Fail Questions
Pass/Fail questions are stated as such in the Questions. Failure to meet our requirements in these questions may result in elimination of the Bidder
- Weighted Questions
The scores given for weighted questions are used to calculate the final score.
- For information only
Some questions are for information only; these will not be scored
We are evaluating your submission through the following evaluation methods and high-level criteria:
- Organization Questions including financial and economic standing, Forms of Security, Health and Safety etc.
- Technical Questions including Experience, Capability, O&M Experience, Environment, Workforce and Subcontractors, Innovation and Quality Assurance
We will score the PSQ submissions and shortlist the bidders who pass the selection criteria required to progress to the next stage. We will shortlist the top scoring 8-10 bidders, with the top scores, who will progress to the ITN stage.
We will evaluate your response in the ITN through the following criteria:
- MAT
We will evaluate your response in accordance with Most Advantageous Tender (MAT) award criteria. Both technical and commercial responses will be scored in detail and weighted to give an overall score.
- Pass/Fail Questions
Pass/Fail questions are stated as such in the Questions. Failure to meet our requirements in these questions may result in elimination of the Bidder
- Weighted Questions
The scores given for weighted questions are used to calculate the final score.
- For information only
Some questions are for information only; these will not be scored
We are evaluating your submission through the following evaluation methods:
- Technical (50% weighting)
- Commercial (50% weighting)
This is a 3 Stage ITN Process, where we reserve the right to shortlist 3-5 bidders through to ITN Stage 2, with their Stage 1 scores being carried over, and their technical score being reapportioned. The highest scoring bidder ITN stage 2 will move through to ITN stage 3, to negotiate the final agreement,
How it was run
Official notice- Submission deadline
- 21 Oct 2025, 10:00 BST
- Submission channel
- Official e-sourcing portal
- Electronic submission
- Allowed
- Accepted languages
- en
You can request access of participation here:
Timeline
26 Sept 2025 → 24 Apr 2026 · 4 dates- Tender notice published396 days ago26 Sept 2025, 09:31 BST
- Submission deadline371 days ago21 Oct 2025, 10:00 BST
- Contract starts187 days ago24 Apr 2026, 00:00 BST
- Award decision expected by186 days ago24 Apr 2026, 23:59 BST
Notice history
1 event · 1 release on Find a Tender- Tender notice published26 Sept 2025, 09:31 BSTUK4
Contracting authority & participating public bodies
Official documents & specifications (1)
Official links; attachments are not copiedNotices published for this procedure
- Tender notice Tender notice on Find a Tender