---
title: "STA Energy Centres district heating networks and buildings work to Riba stage 3"
ocid: "ocds-h6vhtk-06f87c"
canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-06f87c"
markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-06f87c.md"
json_url: "https://d3tenders.com/contract/ocds-h6vhtk-06f87c.json"
source: "Find A Tender Service"
current_stage: "Award"
buyer: "University Hospitals Bristol and Weston NHS Foundation Trust"
published: "2026-09-11"
---

# STA Energy Centres district heating networks and buildings work to Riba stage 3

Buyer: University Hospitals Bristol and Weston NHS Foundation Trust  
Current stage: Award  
OCID: ocds-h6vhtk-06f87c

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## Summary

Bristol NHS Foundation Trust commissioned technical and commercial consultancy for a future heat offtake project at its Bristol Royal Infirmary site. The work covers energy centres, district heating networks and associated buildings, developed to RIBA Stage 3. It is environmental engineering consultancy focused on the design and commercial aspects of heat infrastructure rather than construction or routine facilities management. The buyer is Bristol NHS Foundation Trust, with the activity delivered at the BRI site in Bristol. The requirement is described as an out-of-scope variation to an existing agreement, so it concerns a defined extension of work connected with the Trust’s existing heat and energy arrangements. The requirement is suitable for small and medium-sized enterprises, and is relevant to firms combining heat-network engineering, energy-centre design and commercial advisory capability for NHS or similarly complex estates.

The procurement is complete and was made by direct award as an out-of-scope extension to an existing agreement, rather than through an open competition. One lot was awarded to Ameresco Limited, although the award status is recorded as pending. The award value is £200,000 excluding VAT, or £240,000 including VAT. The contract period runs from 1 October 2026 to 30 December 2027, with a planned signature date of 28 September 2026. The evaluation basis is therefore the existing agreement and the justification for extending it, rather than a fresh price-and-quality competition. The award is above the relevant threshold. The work is classified as environmental engineering consultancy services and covers the technical and commercial preparation of the future heat offtake project at the BRI site.

This procurement demonstrates demand from Bristol NHS Foundation Trust for specialist advisers able to take complex healthcare-estate energy projects through detailed design and commercial development. A credible future competitor would need practical experience of energy centres, district heating networks, building interfaces and heat offtake arrangements, together with the ability to develop work to RIBA Stage 3. The requirement also calls for both technical engineering and commercial understanding: suppliers should be able to assess infrastructure options, coordinate the design implications for an operational hospital site and support the commercial structure of a heat project. Firms with relevant NHS estate, public-sector energy or major-building experience would be well placed, particularly where they can combine environmental engineering consultancy with the capacity to manage an extension or follow-on requirement under an existing public-sector arrangement.

## Notice

Working on the technical and commercial aspects of a future heat offtake project at the BRI site. This is an out of scope variation on the existing agreement. This is not a tender opportunity.

### Procurement Information

out of scope extension to an existing agreement

## Key Details

| Field | Value |
| --- | --- |
| Publication source | Find A Tender Service |
| Latest notice | https://www.find-tender.service.gov.uk/Notice/086599-2026 |
| Notice type | UK5 - Transparency Notice |
| Procurement type | Standard |
| Procurement category | Services |
| Procurement method | Direct |
| Procurement method details | Direct award |
| Tender suitability | SME |
| Awardee scale | SME |
| All stages | Award |

## Dates

| Field | Value |
| --- | --- |
| Publication date | 11 Sep 2026 |
| Submission deadline | Not specified |
| Future notice date | Not specified |
| Award date | Not specified |
| Contract period | 1 Oct 2026 - 30 Dec 2027 |
| Recurrence | Not specified |

## Values

| Field | Value |
| --- | --- |
| Tender value | Not specified |
| Lots value | Not specified |
| Awards value | £200,000 |
| 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 | University Hospitals Bristol and Weston NHS Foundation Trust |
| Locality | BRISTOL |
| Postcode area | Bristol |
| Postcode | BS1 3NU |
| Country | England |
| ITL 1 | TLK South West (England) |
| ITL 2 | TLK5 West of England |
| ITL 3 | TLK51 Bristol, City of |
| Local authority | Bristol, City of |
| Electoral ward | Central |
| Westminster constituency | Bristol Central |
| Delivery location | Not specified |

## Supplier

| Field | Value |
| --- | --- |
| Number of suppliers | 1 |
| Supplier names | Ameresco Ltd. |

## CPV Codes

### Divisions

- 71 - Architectural, construction, engineering and inspection services

### Codes

- 71313000 - Environmental engineering consultancy services

## Release History

- 11 Sep 2026 at 16:16 - Award - UK5 - Transparency Notice - https://www.find-tender.service.gov.uk/Notice/086599-2026

## Documents

- https://www.find-tender.service.gov.uk/Notice/086599-2026
  11th September 2026 - Transparency notice on Find a Tender

## Notice URLs

- https://www.ameresco.com/uk
- https://www.legislation.gov.uk/ukpga/2023/54/contents
- https://www.nbt.nhs.uk/

## 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-06f87c. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-06f87c.json.