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Electricity Supply and Solar Infrastructure

PORTSMOUTH WATER LIMITED

This public procurement record has 2 releases in its history.

Award

05 Dec 2025 at 16:51

UK6 - Contract Award Notice
Award

05 Dec 2025 at 16:38

UK5 - Transparency Notice
Summary of the contracting process

Portsmouth Water Limited is advancing its procurement stage by awarding a contract for the "Electricity Supply and Solar Infrastructure" initiative. This contract involves a direct award to Wattserve Itchen Limited for supplying electricity through an integrated renewable generation and solar infrastructure at Portsmouth Water's River Itchen Water Treatment Works in Havant, located in the UK region UKJ35. The procurement process is driven by technical reasons and addresses contractual constraints due to existing agreements with Brockhampton Solutions Limited, positioning it as a private utility procurement under the special regime category for utilities. The award, dated 5th December 2025, commences on 19th December 2025 and spans until 1st April 2051, with a gross value of £8,700,000 GBP. Key upcoming milestones include finalising the contract signature by 18th December 2025.

This tender represents significant business growth potential for companies specialising in renewable energy production, solar panel systems, and electrical supply solutions. It is tailored to businesses proficient in integrating new and existing energy solutions within established agreements. While Wattserve Itchen Limited is currently poised to manage the direct award, there remains scope for enterprises providing complementary services or innovative technological approaches. SMEs focusing on sustainability and advanced solar technologies are particularly well-suited, given the demand for new solar PV installations and battery storage assets. Furthermore, companies adept at managing complex contractual landscapes and electricity regulation changes stand to benefit from the extended contract period offering long-term business security and strategic partnership opportunities within the utilities industry.

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Notice Information

Notice Title

Electricity Supply and Solar Infrastructure

Notice Description

The procurement proposes appointing Wattserve Itchen Limited ("Supplier") to provide electricity to Portsmouth Water Limited ("PW"), integrating both new renewable generation and existing solar assets on PW's premises at River Itchen Water Treatment Works (the "PW Premises"). The Supplier will install, operate and own new solar PV and battery storage assets to supplement the electricity supplied to PW from the existing solar assets. Brockhampton Solutions Limited ("BSL") currently owns existing solar assets on PW's Premises and supplies electricity to PW under a power purchase agreement. In order to ensure the new arrangements align with BSL's existing supply arrangement, PW and the Supplier will coordinate with BSL to continue the supply of electricity from BSL's existing assets to PW under the existing power purchase agreement. The Supplier will supplement any shortfall of electricity needed by PW on the PW Premises. PW, as the occupier of the PW Premises, will consume the electricity supplied under this integrated arrangement and provide access for the installation and operation of the Supplier's assets. The combined approach ensures PW's electricity needs are met through a mix of the Supplier's new generation, BSL's existing solar assets, and grid supply where required. This arrangement establishes the roles and interactions between PW, BSL, and the Supplier, supporting an efficient, coordinated electricity supply while maintaining continuity with existing solar infrastructure.

Procurement Information

The procurement is proposed to be awarded to the Wattserve Itchen Limited under the exemption for a public contract awarded without competition for technical reasons (Schedule 5, Paragraph 6), on the basis that: 1. The relevant premises already host an operational solar supply owned by Brockhampton Solutions Limited ("BSL") under an existing power purchase agreement with Portsmouth Water ("PW"). A key feature of the proposed arrangement is that BSL will continue to operate its existing solar assets on the relevant premises and supply electricity to PW under the terms of the existing power purchase agreement. The Supplier will only supplement any shortfall in electricity needed by PW on the premises using the new generation assets and/or grid supply. The Supplier will manage the export and import meters on PW's supply circuit and act as BSL's agent in exporting any surplus electricity generated by BSL's existing assets. Any behind-the-meter solution must be integrated with BSL's existing assets and contractual arrangements and PW's supply circuit. PW is therefore technically constrained to work within the framework established by BSL, making this integration a defining feature of the proposal. 2. PW has explored alternative solutions in the market. However, any solution must be compatible with BSL's existing contractual and operational requirements. As a result, while other solutions may exist in principle, they are not reasonable alternatives for the purposes of Schedule 5, Paragraph 6, because PW is bound by BSL's mandates regarding the transaction. The distinction between "substitutes" (other potential solutions) and "reasonable alternatives" (feasible options that meet PW's technical and contractual constraints) supports this conclusion. In addition Wattstor Itchen Limited have also incorporated into the solution certain exclusive intellectual property and commercial terms that are not otherwise available on the open market.

Notice Details

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-05f028
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/080351-2025
Current Stage
Award
All Stages
Award

Procurement Classification

Notice Type
UK6 - Contract Award Notice
Procurement Type
Standard
Procurement Category
Goods
Procurement Method
Direct
Procurement Method Details
Direct award
Tender Suitability
SME
Awardee Scale
SME

Common Procurement Vocabulary (CPV)

CPV Divisions

09 - Petroleum products, fuel, electricity and other sources of energy

31 - Electrical machinery, apparatus, equipment and consumables; lighting

44 - Construction structures and materials; auxiliary products to construction (except electric apparatus)

CPV Codes

09310000 - Electricity

09330000 - Solar energy

31680000 - Electrical supplies and accessories

44112430 - Roof trusses

Notice Value(s)

Tender Value
Not specified
Lots Value
Not specified
Awards Value
£8,700,000 £1M-£10M
Contracts Value
Not specified

Notice Dates

Publication Date
5 Dec 20258 months ago
Submission Deadline
Not specified
Future Notice Date
Not specified
Award Date
5 Dec 20258 months ago
Contract Period
19 Dec 2025 - 2 Apr 2051 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Complete
Lots Status
Complete
Awards Status
Pending
Contracts Status
Not Specified

Buyer & Supplier

Contracting Authority (Buyer)

Main Buyer
PORTSMOUTH WATER LIMITED
Contact Name
Available with D3 Tenders Premium →
Contact Email
Available with D3 Tenders Premium →
Contact Phone
Available with D3 Tenders Premium →

Buyer Location

Locality
HAVANT
Postcode
PO9 1LG
Postcode Area
Portsmouth
Country
England
Major Region (ITL 1)
TLJ South East (England)
Basic Region (ITL 2)
TLJ3 Hampshire and Isle of Wight
Small Region (ITL 3)
TLJ35 South Hampshire
Delivery Location
Not specified
Local Authority
Havant
Electoral Ward
Havant St Faith's
Westminster Constituency
Havant

Supplier Information

Number of Suppliers
1
Supplier Name

WATTSERVE ITCHEN LIMITED

Further Information

Notice Documents

Open Contracting Data Standard (OCDS)

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The Open Contracting Data Standard (OCDS) is a framework designed to increase transparency and access to public procurement data in the public sector. It is widely used by governments and organisations worldwide to report on procurement processes and contracts.

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