Photovoltaic (PV) Installations Little Marlow and Maidenhead

• How the procedure runs: The PSQ is will have one 'General PSQ' questionnaire which all bidders are required to complete regardless of the lots applied for. Each bidder is to then separately complete each 'Lot Specific' questionnaire relevant to the lots they wish to apply for. Each Lot will be evaluated individually with each Lot survey totalling 100%. Pass/Fail answers from the General PSQ will be combined with the scores from each Lot Specific survey completed to give an overall score out of 100% for each lot applied for. Bidders may bid for one or multiple lots. Responses to this PSQ will be evaluated against selection criteria, to select bidders to proceed to the next stage of this procurement process. 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 4-8 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 2 bidders from ITN Stage 2 will move through to ITN Stage 3, to negotiate the final agreement. This description applies to all Lots applied for.

CPV: Solar energy

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

18 Aug 2026, 13:19 BST

Last source update

10 Sept 2026, 10:26 BST

Award evaluation window

Submission end – 30 Apr 2027

Authority reference

TC2444

FTS notice number

2026/S 000-078540

Latest notice

Tender notice (UK4)

Classification (CPV)

Solar energy

Delivery area

London (UKI)South East (UKJ)

Official registry OCID

ocds-h6vhtk-06e68b Find a Tender

How it runs

The PSQ is will have one 'General PSQ' questionnaire which all bidders are required to complete regardless of the lots applied for. Each bidder is to then separately complete each 'Lot Specific' questionnaire relevant to the lots they wish to apply for.

Each Lot will be evaluated individually with each Lot survey totalling 100%. Pass/Fail answers from the General PSQ will be combined with the scores from each Lot Specific survey completed to give an overall score out of 100% for each lot applied for.

Bidders may bid for one or multiple lots. Responses to this PSQ will be evaluated against selection criteria, to select bidders to proceed to the next stage of this procurement process.

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 4-8 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 2 bidders from ITN Stage 2 will move through to ITN Stage 3, to negotiate the final agreement.

This description applies to all Lots applied for.

Submission deadline

22 Sept 2026, 12:00 BST

Clarification deadline

8 Sept 2026, 17:00 BST

Submission channel

Official e-sourcing portal

Electronic submission

Allowed

Accepted languages

en