---
title: "Electricity Supply and Solar Infrastructure"
ocid: "ocds-h6vhtk-05f028"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05f028"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05f028.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05f028.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "PORTSMOUTH WATER LIMITED"
published: "2025-12-05"
---

# Electricity Supply and Solar Infrastructure

Buyer: PORTSMOUTH WATER LIMITED  
Current stage: Award  
OCID: ocds-h6vhtk-05f028

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## Summary

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.

## Notice

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.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/080351-2025 |
| 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 |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 5 Dec 2025 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | 5 Dec 2025 |
| Contract period | 19 Dec 2025 - 1 Apr 2051 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | £8,700,000 |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Complete |
| Lots status | Complete |
| Awards status | Pending |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | PORTSMOUTH WATER LIMITED |
| Additional buyers | BROCKHAMPTON SOLUTIONS LIMITED |
| Locality | HAVANT |
| Post town | Portsmouth |
| Postcode | PO9 1LG |
| Country | England |
| ITL 1 | TLJ South East (England) |
| ITL 2 | TLJ3 Hampshire and Isle of Wight |
| ITL 3 | TLJ35 South Hampshire |
| Local authority | Havant |
| Electoral ward | Havant St Faith's |
| Westminster constituency | Havant |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | WATTSERVE ITCHEN |

## CPV Codes

### 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)

### Codes

- 09310000 - Electricity
- 09330000 - Solar energy
- 31680000 - Electrical supplies and accessories
- 44112430 - Roof trusses

## Release History

- 5 Dec 2025 at 16:51 - Award - UK6 - Contract Award Notice - https://www.find-tender.service.gov.uk/Notice/080351-2025
- 5 Dec 2025 at 16:38 - Award - UK5 - Transparency Notice - https://www.find-tender.service.gov.uk/Notice/080345-2025

## Documents

- https://www.find-tender.service.gov.uk/Notice/080351-2025
  5th December 2025 - Contract award notice on Find a Tender
- https://www.find-tender.service.gov.uk/Notice/080345-2025
  5th December 2025 - Transparency notice on Find a Tender

## Notice URLs

- http://www.portsmouthwater.co.uk
- https://www.legislation.gov.uk/ukpga/2023/54/contents

## Provenance

This Markdown file is an alternate public rendering of the D3 Tenders contract record. The canonical page is https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05f028. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05f028.json.