Tender

PRO005070 - Supply of Battery Energy Storage Solutions (BESS)

UNITED UTILITIES WATER LIMITED

This public procurement record has 1 release in its history.

Tender

19 Mar 2026 at 10:00

Summary of the contracting process

United Utilities Water Limited is currently in the tender stage of a procurement process aiming to establish a multi-supplier framework agreement for the provision of Battery Energy Storage Systems (BESS) to support its Power Resilience Programme. This tender, titled "PRO005070 – Supply of Battery Energy Storage Solutions (BESS)," falls within the private utility industry category, with delivery focused across various operational sites in the UK region. Interested parties must submit inquiries by 1st April 2026 and final submissions by 7th May 2026, with the tender valued at approximately £40 million. The procurement employs an open procedure through a competitive flexible method, allowing for phased deployment during the AMP8 and AMP9 regulatory periods to enhance power resilience and support decarbonisation efforts.

This tender presents significant business growth opportunities, particularly for experienced suppliers capable of delivering scalable and standardised BESS solutions across diverse operational sites. Companies with expertise in battery systems, energy management systems, and integration with electrical infrastructure have a competitive edge. It also favours small-medium enterprises (SMEs) due to its suitability criteria. The framework agreement involves direct award and mini-competition mechanisms, offering businesses the flexibility of participation and potential long-term service agreements. Suppliers will benefit from a stable commercial relationship with the potential for extensions beyond the initial four-year term, fostering growth in sectors such as electrical equipment, energy storage technology, and information systems.

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Notice Title

PRO005070 - Supply of Battery Energy Storage Solutions (BESS)

Notice Description

United Utilities Water Limited intends to establish a multi-supplier framework agreement for the provision of Battery Energy Storage Systems (BESS) to support delivery of its Power Resilience Programme across operational water and wastewater sites. The framework will enable the deployment of distributed battery storage assets across approximately 225 operational locations, supporting enhanced power resilience, operational continuity and decarbonisation objectives during the AMP8 and AMP9 regulatory periods. The scope of the framework includes the supply of containerised or modular Battery Energy Storage Systems, including battery modules, power conversion systems (PCS), energy management systems (EMS), monitoring and control systems, and associated balance-of-plant components required for integration with existing electrical infrastructure. Systems will support resilience requirements such as backup power during grid outages, peak demand management and, where appropriate, participation in grid flexibility services. Suppliers appointed to the framework will be expected to provide equipment warranties, performance guarantees and options for long-term service and maintenance to support reliable lifecycle operation. The scope may also include technical support for design integration, commissioning assistance, remote monitoring capabilities and integration with site-level control systems, including SCADA where required. The framework will appoint a limited number of experienced suppliers capable of delivering scalable and standardised BESS solutions suitable for deployment across a diverse portfolio of operational sites with varying power and capacity requirements. Call-off contracts for individual deployments may be awarded through direct award or mini-competition in accordance with the framework terms.

Publication & Lifecycle

Open Contracting ID
ocds-h6vhtk-066e73
Publication Source
Find A Tender Service
Latest Notice
https://www.find-tender.service.gov.uk/Notice/024976-2026
Current Stage
Tender
All Stages
Tender

Procurement Classification

Notice Type
UK4 - Tender Notice
Procurement Type
Framework
Procurement Category
Goods
Procurement Method
Open
Procurement Method Details
Competitive flexible procedure
Tender Suitability
SME
Awardee Scale
Not specified

Common Procurement Vocabulary (CPV)

CPV Divisions

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

48 - Software package and information systems


CPV Codes

31158000 - Chargers

31422000 - Battery packs

31600000 - Electrical equipment and apparatus

48810000 - Information systems

Notice Value(s)

Tender Value
£40,000,000 £10M-£100M
Lots Value
£40,000,000 £10M-£100M
Awards Value
Not specified
Contracts Value
Not specified

Notice Dates

Publication Date
19 Mar 20263 days ago
Submission Deadline
7 May 20262 months to go
Future Notice Date
Not specified
Award Date
Not specified
Contract Period
13 Aug 2026 - 10 Aug 2034 Over 5 years
Recurrence
Not specified

Notice Status

Tender Status
Active
Lots Status
Active
Awards Status
Not Specified
Contracts Status
Not Specified

Contracting Authority (Buyer)

Main Buyer
UNITED UTILITIES 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
WARRINGTON
Postcode
WA5 3LP
Post Town
Warrington
Country
England

Major Region (ITL 1)
TLD North West (England)
Basic Region (ITL 2)
TLD6 Cheshire
Small Region (ITL 3)
TLD61 Warrington
Delivery Location
TLD North West (England)

Local Authority
Warrington
Electoral Ward
Great Sankey North and Whittle Hall
Westminster Constituency
Warrington South

Open Contracting Data Standard (OCDS)

View full OCDS Record for this contracting process

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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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