---
title: "PRO005070 - Supply of Battery Energy Storage Solutions (BESS)"
ocid: "ocds-h6vhtk-066e73"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-066e73"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-066e73.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-066e73.json"
source: "Find A Tender Service"
current_stage: "Tender"
buyer: "UNITED UTILITIES WATER LIMITED"
published: "2026-03-19"
---

# PRO005070 - Supply of Battery Energy Storage Solutions (BESS)

Buyer: UNITED UTILITIES WATER LIMITED  
Current stage: Tender  
OCID: ocds-h6vhtk-066e73

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## Summary

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.

## Notice

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.

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/024976-2026 |
| 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 |
| All stages | Tender |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 19 Mar 2026 |
| Submission deadline | 7 May 2026 |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 13 Aug 2026 - 10 Aug 2034 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | £40,000,000 |
| Lots value | £40,000,000 |
| Awards value | Not specified |
| Contracts value | Not specified |

## Status

| Field | Value |
| --- | --- |
| Tender status | Active |
| Lots status | Active |
| Awards status | Not specified |
| Contracts status | Not specified |

## Buyer

| Field | Value |
| --- | --- |
| Main buyer | UNITED UTILITIES WATER LIMITED |
| Locality | WARRINGTON |
| Post town | Warrington |
| Postcode | WA5 3LP |
| Country | England |
| ITL 1 | TLD North West (England) |
| ITL 2 | TLD6 Cheshire |
| ITL 3 | TLD61 Warrington |
| Local authority | Warrington |
| Electoral ward | Great Sankey North and Whittle Hall |
| Westminster constituency | Warrington South |
| Delivery location | TLD North West (England) |

## CPV Codes

### Divisions

- 31 - Electrical machinery, apparatus, equipment and consumables; lighting
- 48 - Software package and information systems

### Codes

- 31158000 - Chargers
- 31422000 - Battery packs
- 31600000 - Electrical equipment and apparatus
- 48810000 - Information systems

## Release History

- 19 Mar 2026 at 10:00 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/024976-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/024976-2026
  19th March 2026 - Tender notice on Find a Tender

## Notice URLs

- https://uk.eu-supply.com/app/rfq/rwlentrance_s.asp?PID=103889&TID100109064&B=
- https://www.legislation.gov.uk/ukpga/2023/54/contents
- https://www.unitedutilities.com

## 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-066e73. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-066e73.json.