Scope
Reference
WME010 - Solar PV
Description
WME is looking to receive applications from suppliers to join a multi supplier Open Framework to carry out energy efficiency improvement works in but not limited to any public sector buildings including Schools, Council buildings and Town Councils. It is envisaged that most of the works will be conducted on school buildings.
In May 2024 WME awarded Barker Associates a single supplier framework for Decarbonisation Solutions for the education sector. This framework will broaden WME's decarbonisation services to cut energy use, improve building efficiency, and reach net zero.
In establishing this framework, Barker Associates have supported WME with technical advice and support, including, but not limited to; providing support with drawing up the tender document, technical specifications and will support in subsequent tender evaluations.
Once the framework has been established it is envisaged that Barker Associates will utilise the framework to call off contracts to support their work as our decarbonisation partner. This work will include preparation of ITT documents, supporting with clarification questions, offering technical support and evaluation of the competitive selection process. If the Contracting Authority wishes to utilise their own technical advisors, then the framework will permit that.
During the first 12 months of the award of this framework. WME will only offer the fully managed procurement service to Contracting Authorities utilising Barker Associates consultancy services. This exclusion is designed to ensure any teething problems have been ironed out prior to expanding this service to other consultants/contractors.
For more information about this opportunity, please visit the Delta eSourcing portal at:
https://www.delta-esourcing.com/tenders/UK-UK-Shrewsbury:-Solar-energy./55G7DRZHFY
To respond to this opportunity, please click here:
Commercial tool
Establishes an open framework
Total value (estimated)
- £80,000,000 excluding VAT
- £96,000,000 including VAT
Above the relevant threshold
Contract dates (estimated)
- 4 May 2026 to 3 May 2034
- 8 years
Main procurement category
Works
CPV classifications
- 09330000 - Solar energy
- 09331000 - Solar panels
- 09332000 - Solar installation
- 45261215 - Solar panel roof-covering work
Contract locations
- UK - United Kingdom
Lot constraints
Description of how multiple lots may be awarded:
N/A
Lot 1. North East
Description
Lot 1 - North East of England region
WME is looking to receive applications from suppliers to join a multi supplier Open Framework to carry out supply and installation of solar PV works in but not limited to any public sector buildings including Schools, Council buildings, Parish Councils. It is envisaged that most of the works will be conducted on school buildings.
The framework has been be structured into 10 regional Lots, aligned with Office for National Statistics NUTS regions as detailed in 1.5 of the ITT Information for Tenderers
Lot value (estimated)
- £8,000,000 excluding VAT
- £9,600,000 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. North West
Description
Lot 2 - North West of England region
WME is looking to receive applications from suppliers to join a multi supplier Open Framework to carry out supply and installation of solar PV works in, but not limited to public sector buildings including schools, council buildings and town councils. It is envisaged that most of the work will be conducted in school buildings.
The framework has been structured into 10 regional lots, aligned with Office for National Statistics NUTs regions as detailed in 1.5 of the ITT Information for Tenderers.
Lot value (estimated)
- £8,000,000 excluding VAT
- £9,600,000 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 3. Yorkshire and the Humber
Description
Lot 3 - Yorkshire and Humber region
WME is looking to receive applications from suppliers to join a multi supplier Open Framework to carry out supply and installation of solar PV works in, but not limited to public sector buildings including schools, council buildings and town councils. It is envisaged that most of the work will be conducted in school buildings.
The framework has been structured into 10 regional lots, aligned with Office for National Statistics NUTs regions as detailed in 1.5 of the ITT Information for Tenderers.
Lot value (estimated)
- £8,000,000 excluding VAT
- £9,600,000 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 4. East Midlands
Description
Lot 4 - East Midlands region
WME is looking to receive applications from suppliers to join a multi supplier Open Framework to carry out supply and installation of solar PV works in, but not limited to public sector buildings including schools, council buildings and town councils. It is envisaged that most of the work will be conducted in school buildings.
The framework has been structured into 10 regional lots, aligned with Office for National Statistics NUTs regions as detailed in 1.5 of the ITT Information for Tenderers.
Lot value (estimated)
- £8,000,000 excluding VAT
- £9,600,000 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 5. West Midlands
Description
Lot 5 - West Midlands region
WME is looking to receive applications from suppliers to join a multi supplier Open Framework to carry out supply and installation of solar PV works in, but not limited to public sector buildings including schools, council buildings and town councils. It is envisaged that most of the work will be conducted in school buildings.
The framework has been structured into 10 regional lots, aligned with Office for National Statistics NUTs regions as detailed in 1.5 of the ITT Information for Tenderers.
Lot value (estimated)
- £8,000,000 excluding VAT
- £9,600,000 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 6. East of England
Description
Lot 6 - East of England region
WME is looking to receive applications from suppliers to join a multi supplier Open Framework to carry out supply and installation of solar PV works in, but not limited to public sector buildings including schools, council buildings and town councils. It is envisaged that most of the work will be conducted in school buildings.
The framework has been structured into 10 regional lots, aligned with Office for National Statistics NUTs regions as detailed in 1.5 of the ITT Information for Tenderers.
Lot value (estimated)
- £8,000,000 excluding VAT
- £9,600,000 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 7. London
Description
Lot 7 - London
WME is looking to receive applications from suppliers to join a multi supplier Open Framework to carry out supply and installation of solar PV works in, but not limited to public sector buildings including schools, council buildings and town councils. It is envisaged that most of the work will be conducted in school buildings.
The framework has been structured into 10 regional lots, aligned with Office for National Statistics NUTs regions as detailed in 1.5 of the ITT Information for Tenderers.
Lot value (estimated)
- £8,000,000 excluding VAT
- £9,600,000 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 8. South East
Description
Lot 8 - South East of England region
WME is looking to receive applications from suppliers to join a multi supplier Open Framework to carry out supply and installation of solar PV works in, but not limited to public sector buildings including schools, council buildings and town councils. It is envisaged that most of the work will be conducted in school buildings.
The framework has been structured into 10 regional lots, aligned with Office for National Statistics NUTs regions as detailed in 1.5 of the ITT Information for Tenderers.
Lot value (estimated)
- £8,000,000 excluding VAT
- £9,600,000 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 9. South West
Description
Lot 9 - South West of England region
WME is looking to receive applications from suppliers to join a multi supplier Open Framework to carry out supply and installation of solar PV works in, but not limited to public sector buildings including schools, council buildings and town councils. It is envisaged that most of the work will be conducted in school buildings.
The framework has been structured into 10 regional lots, aligned with Office for National Statistics NUTs regions as detailed in 1.5 of the ITT Information for Tenderers.
Lot value (estimated)
- £8,000,000 excluding VAT
- £9,600,000 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 10. Wales
Description
Lot 10 - Wales
WME is looking to receive applications from suppliers to join a multi supplier Open Framework to carry out supply and installation of solar PV works in, but not limited to public sector buildings including schools, council buildings and town councils. It is envisaged that most of the work will be conducted in school buildings.
The framework has been structured into 10 regional lots, aligned with Office for National Statistics NUTs regions as detailed in 1.5 of the ITT Information for Tenderers.
Lot value (estimated)
- £8,000,000 excluding VAT
- £9,600,000 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
Open framework scheme end date (estimated)
3 May 2034
Maximum number of suppliers
50
Maximum percentage fee charged to suppliers
2%
Further information about fees
There is a fee for using this framework, The WME fee is a cost payable by the Contracting Authority and recovered from the Supplier. The fee payable to WME depends on the service level route taken, being either; WME managed procurement or self service.
Fees range from 0.5% to 2% in each case the percentage being of the final value of each Call-Off Contract plus any applicable VAT. The Supplier will therefore need to account for this cost when quoting for work.
Framework operation description
This tender establishes a multiple supplier framework agreement for the provision of services as detailed in the specification. Suppliers who are successfully appointed will be added to an approved supplier list.
Contracting Authorities have two options for accessing the framework:
1. Further competition
2. Direct Award
The choice of access route rests solely with the Contracting Authority.
In cases where a Contracting Authority opts for a direct award, all relevant documentation will be made available to support their due diligence process. The Contracting Authority will then place an order directly with the selected supplier.
Service Level 1 - Managed Procurement:
Suppliers enter into a Framework Agreement with WME, and Contracting Authorities access the framework via a Call-Off Agreement. WME will facilitate the publication of required notices via their ESourcing Portal - Delta.
The Authorised User is responsible for defining requirements, drafting specifications, selecting suppliers through further competition or justified direct award, assisting with contract finalisation, and facilitating ongoing contract management.
Service Level 2 - Self-Service Procurement:
As with the managed model, suppliers enter into a Framework Agreement with WME. However, Contracting Authorities independently manage the procurement process. This includes defining requirements, selecting suppliers via a further competition or direct award, and overseeing the full contract lifecycle without involvement from WME. All due diligence responsibilities rest solely with the Contracting Authority and the chosen Supplier.
Award method when using the framework
Either with or without competition
Contracting authorities that may use the framework
WME's contracts are open to use by any public sector organisation within the UK, and non profit making and charitable organisations, eductaion providers including academies, and private sector organisations delivering public services on behalf of public bodies which fall within the below categories but also to include any organisation not so identified:
Local authority councils: county, unitary, district, borough, metropolitan and parish councils. https://uk-air.defra.gov.uk,
Educational Establishments (including academies and further Education): https://get-information-schools.service.gov.uk,
Police, Fire and Rescue services: https://www.police.uk/pu/contact-the-police/, https://www.fireservice.co.uk
NHS bodies, and ambulance services: https://www.england.nhs.uk/publication/nhs-provider-directory/
Central Registered charities:https://register-of-charities.charitycommission.gov.uk/en/
Participation
Legal and financial capacity conditions of participation
Lot 1. North East
Lot 2. North West
Lot 3. Yorkshire and the Humber
Lot 4. East Midlands
Lot 5. West Midlands
Lot 6. East of England
Lot 7. London
Lot 8. South East
Information is detailed in the ITT Tender Response Document
Lot 9. South West
Information is detailed in the ITT Tender Respoonse Document
Lot 10. Wales
Informatio is detailed in the ITT Tender Response Document
Technical ability conditions of participation
Lot 1. North East
Information detailed in the Technical Specification and the ITT Tender Response Document
Lot 2. North West
Information is detailed in the Technical Specification and the ITT Response Document
Lot 3. Yorkshire and the Humber
Lot 5. West Midlands
Lot 6. East of England
Lot 7. London
Lot 8. South East
Lot 9. South West
Lot 10. Wales
Information is detailed in the Technical Specification and the ITT Tender Response Document
Lot 4. East Midlands
Information is detailed in the Technical Specification and the ITT Tennder Response Document
Particular suitability
Lot 1. North East
Lot 2. North West
Lot 3. Yorkshire and the Humber
Lot 4. East Midlands
Lot 5. West Midlands
Lot 6. East of England
Lot 7. London
Lot 8. South East
Lot 9. South West
Lot 10. Wales
Small and medium-sized enterprises (SME)
Submission
Enquiry deadline
20 February 2026, 5:00pm
Submission type
Tenders
Tender submission deadline
6 March 2026, 12:00pm
Submission address and any special instructions
This opportunity is accessed via WMEs eSourcing tender portal Delta. If you are not already registered to Delta Esourcing you can register via this link https://www.delta-esourcing.com/. Please ensure that you allow yoursef at least 2 hours when responding to this invite prior to the closing date and time, especially if you have multiple documents to upload.
No other method of submission will be accepted.
If you have any technical difficulties or queries relating to the Delta esourcing portal, please contact helpdesk@delta-esourcing.com or call 0800 923 9236 for further assistance.
Tenders may be submitted electronically
Yes
Languages that may be used for submission
English
Award decision date (estimated)
20 April 2026
Award criteria
| Name | Type | Weighting |
|---|---|---|
| Quality | Quality | 80% |
| Price | Price | 20% |
Other information
Payment terms
Payments will be made as follows:
40% (of contract sum) payment on delivery of Materials and Equipment to site, Vesting Certificate to be issued to Employer (40% of contract sum - subject to 7.5 % retention)
50% (of contract sum) payment on completion of the installation works, system commissioned and generating (90% of contract sum - subject to 7.5% retention)
Practical Completion issued after 30 days generation on Solar Edge Platform (or equal and approved) and submission of compliant O&M manual containing all final G98/99/100 sign offs from DNO (100% of contract sum - subject to 2.5% retention)
2.5% (of contract sum) payment on completion of all defects being addressed during the 12 months Defects Period (100% of contract sum - No Retention)
Description of risks to contract performance
PLEASE NOTE: values given are approximate. We are not able to put an accurate valuation on each lot as works will be reactive to funding and opportunity.
Applicable trade agreements
- Government Procurement Agreement (GPA)
Conflicts assessment prepared/revised
Yes
Procedure
Procedure type
Competitive flexible procedure
Competitive flexible procedure description
The intended duration of the Framework is eight (8) years. However, Call-off Contracts awarded under the Framework may extend beyond the Framework's end date.
The Procurement Act 2023 introduces a new 'open framework' model, which allows for the Framework to be reopened at predetermined intervals. This enables new suppliers to join and existing suppliers to amend their participation. We intend to reopen the Framework after year 2 for Scheme 2 and again at year 4 for Scheme 3 then finally at year 6 for Scheme 4.
Suppliers awarded a place on the original Scheme will be given the opportunity to confirm whether they wish to remain on the Framework at each reopening. At that time, suppliers may choose to amend their bids or retain their original submission. All new and amended bids will be evaluated, which may result in changes to Supplier rankings and could affect continued participation or eligibility for direct award opportunities.
Documents
Associated tender documents
WME ITT Information for Tenderers (Solar PV).docx
WME Schedule 1 - Part 1 - ITT Tender Response (Solar PV).docx
WME Schedule 1 - Part 2 - Schedule of Rates (Solar PV).xlsx
WME Schedule 2 - Technical Specification (Solar PV).docx
WME Framework Agreement (Solar PV).docx
WME Schedule 3 - Form of Call-off Contract (Solar PV).docx
Contracting authority
West Mercia Energy
- Public Procurement Organisation Number: PPZB-5578-MWQH
Chapter House South, Abbey Lawn
Shrewsbury
SY2 5DE
United Kingdom
Region: UKG22 - Shropshire CC
Organisation type: Public authority - sub-central government
Other organisation
These organisations are carrying out the procurement, or part of it, on behalf of the contracting authorities.
Barker Associates
Summary of their role in this procurement: Procurement support, tender evaluator and technical advice
- Public Procurement Organisation Number: PCCH-8929-TWTZ
Majesty House, Avenue West, Skyline 120
Braintree
CM77 7AA
United Kingdom
Region: UKH34 - Essex Haven Gateway