System operational · UK tenders
closed
ocds-h6vhtk-06e68b · tenderUpdate

Photovoltaic (PV) Installations Little Marlow and Maidenhead

THAMES WATER UTILITIES LIMITED

Estimated Value

Up to £0

Deadline

22 September 2026

Published

10 September 2026

Type

Not specified

Private tenderSouth EastGBopen

Full Description

IMPORTANT: Please read this section before deciding whether you wish to register for this event. This section provides you with information regarding the scope of this procurement and details some of the key requirements that a successful applicant MUST be able to deliver.

The following conditions would be considered as some of key requirements for a supplier to meet to be considered for this opportunity:

  • Achilles Verification
  • Must have relevant experience to plan, manage and monitor the project
  • Must be able to comply with water industry standards, such as WIMES, where asset interaction is required

The scope of work includes the finance, engineering, design, procurement, construction, testing and completion, and to operate and maintain two separate solar photovoltaic (PV) plants as summarised in the non-exhaustive list below:

  • Full design and engineering
  • Procurement
  • Installation
  • Commissioning
  • 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 installations are at two separate sites, both being ground mounted, with a maximum capacity of 1,000kWAC and 450kWAC. The Supplier shall design and optimise the size of the PV installation for behind-the-meter and achieve an attractive payback period and NPV.

The scope will be awarded be via either an EPC or PPA (Power Purchase Agreement) model, with only one to be awarded.

Thames Water reserves the right to refine the award criteria. Please note that that deadline for asking for access to the PSQ & submitting of the PSQ is 22 September 2026, at 12:00 p.m.

The scope of work includes the engineering, design, procurement, construction, testing and completion, and to operate and maintain the solar photovoltaic (PV) plant as summarised in the non-exhaustive list below: [MD2.1]

  • Full design and engineering
  • Procurement
  • Installation
  • Commissioning
  • 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

The scope of work includes the funding, engineering, design, procurement, construction, testing and completion, and to operate and maintain the solar photovoltaic (PV) plant as summarised in the non-exhaustive list below[MD2.1]:

  • Full design and engineering
  • Procurement
  • Installation
  • Commissioning
  • 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

Requirements

IMPORTANT: Please read this section before deciding whether you wish to register for this event. This section provides you with information regarding the scope of this procurement and details some of the key requirements that a successful applicant MUST be able to deliver.

  • Must have relevant experience to plan, manage and monitor the project
  • Must be able to comply with water industry standards, such as WIMES, where asset interaction is required

The PV installations are at two separate sites, both being ground mounted, with a maximum capacity of 1,000kWAC and 450kWAC. The Supplier shall design and optimise the size of the PV installation for behind-the-meter and achieve an attractive payback period and NPV.

Thames Water reserves the right to refine the award criteria. Please note that that deadline for asking for access to the PSQ & submitting of the PSQ is 22 September 2026, at 12:00 p.m.

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Likely incumbents

Suppliers who won similar work from this buyer in the last 5 years.

5 found
  1. 1

    STARK SOFTWARE INTERNATIONAL LTD.

    1 contract wonlatest 28 Sept 2026ends 31 Mar 2030CH 02911704

    £5m

    total awarded

  2. 2

    BALMORAL TANKS LIMITED

    1 contract wonlatest 16 Sept 2026ends 31 Oct 2029CH SC300656

    £0

    total awarded

  3. 3

    GEL ENGINEERING LIMITED

    1 contract wonlatest 16 Sept 2026ends 31 Oct 2029CH 08032283

    £0

    total awarded

  4. 4

    STORTEC ENGINEERING LIMITED

    1 contract wonlatest 16 Sept 2026ends 31 Oct 2029CH 11185164

    £0

    total awarded

  5. 5

    TANK CONSULT LIMITED

    1 contract wonlatest 16 Sept 2026ends 31 Oct 2029CH 08720676

    £0

    total awarded

STARK SOFTWARE INTERNATIONAL LTD. is the most likely incumbent based on recency and category match. To win, bidders typically need a clearly differentiated proposition or a price advantage.

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Buyer Profile

THAMES WATER UTILITIES LIMITED
Typepublic body
RegionUKJ11
Total tenders54
Total spend£7,713,070,389
View buyer profile

Key Dates

Published

10 September 2026

Submission deadline

22 September 2026

Notice type

tenderUpdate

Source

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