--- title: "Combined Heat and Power Engines" ocid: "ocds-h6vhtk-05d7ce" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d7ce" markdown_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d7ce.md" json_url: "https://d3tenders.com/contract/ocds-h6vhtk-05d7ce.json" source: "Find A Tender Service" current_stage: "Tender" buyer: "THAMES WATER UTILITIES LIMITED" published: "2025-11-07" --- # Combined Heat and Power Engines Buyer: THAMES WATER UTILITIES LIMITED Current stage: Tender OCID: ocds-h6vhtk-05d7ce [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-h6vhtk-05d7ce) [Download OCDS JSON](https://d3tenders.com/contract/ocds-h6vhtk-05d7ce.json) ## Summary Thames Water Utilities Limited is actively engaged in a procurement process for Combined Heat and Power (CHP) Engines, aiming to enhance operational efficiency and energy recovery at multiple wastewater treatment sites. The tender, identified as FA2277, falls under the industry category of turbines and motors, spark-ignition engines, and related machinery services, with delivery expected in the UK regions UKI and UKJ. The procurement is presently at the tender stage and follows an open, competitive flexible procedure. Key deadlines include a PSQ submission deadline of 28th November 2025, with the contract award anticipated by 30th March 2026. This tender presents significant opportunities for businesses specializing in the supply, installation, and maintenance of CHP engines and related services. Small and medium enterprises (SMEs) with innovative solutions in energy recovery and emissions compliance can benefit from this opportunity, as Thames Water is looking for suppliers capable of providing comprehensive solutions that include new CHP engines, spare parts, and technical support. The flexible approach to the tender process and the potential for long-term engagement through a framework agreement make it a lucrative opportunity for businesses seeking to establish or expand their operations within the utilities sector. ## Notice This procurement relates to the supply, commissioning and maintenance support of Combined Heat and Power (CHP) engines across multiple Thames Water wastewater treatment sites to maximise engine availability / performance. The scope includes the provision of new CHP units and associated services to support operational efficiency and energy recovery, as well as spare parts stock holding and technical support. Objectives and Expected Outcomes Effective utilisation of the biogas produced during the treatment of sludge, minimising flaring of gas, maximising electrical heat and power production * Securing Capacity: Ensure supply of CHP Engine requirement through AMP 8 and AMP 9 * Standardisation: Promote consistency across the CHP estate to reduce complexity and improve asset availability * Commercial Value: Leverage volume-based incentives and long-term value through strategic sourcing * Serviceability: Ensure availability of cost-effective spare parts and technical support * Efficiency & Sustainability: Support energy recovery and carbon reduction goals by securing high-performance, low-emission CHP solutions * Regulatory Changes: Ensure compliance with evolving regulatory requirements * Innovation: Accommodate benefits from innovation Procurement Approach: A competitive tender process will be undertaken to appoint a supplier capable of delivering the full scope. We anticipate awarding the contract to a single supplier but reserve the right to award to more than one supplier if it is deemed to deliver best value. Background: Thames Water (TW) currently operates 47 Combined Heat and Power Engines (CHP) across 24 wastewater treatment sites. These engines vary in age, size and output, and many are approaching the end of their lifecycle (typically 20 years). Anticipated Requirements: * Replacement of end-of-life engines during AMP 8 with estimated 10 - 16 new engines (Estimated range between 100kW - 1500kW electrical output) expected to be installed within AMP 8 alone. Further new engines will be required for AMP 9 * Specification: to be provided at PSQ * Support innovation: We are always looking for ways to improve what we do, and welcome innovative ideas/solutions * Compliance with evolving environmental regulations, especially around emissions to air (e.g. methane slip and possible carbon capture under the Industrial Emissions Directive) * Integration of AMP 9 requirements, to leverage further standardisation and volume-based discounts: The engines on an additional 7 wastewater treatment sites planned to be upgraded in AMP 9 What we anticipate purchasing TW is seeking to procure a comprehensive solution for CHP engines, which includes: * Supply, installation, and commissioning of new CHP engines across the TW estate * Ancillary components required for engine connection and operation * Provision of spare parts to support ongoing maintenance * Planned and reactive maintenance in line with the manufacturers O&M manual * Technical support to ensure safe and efficient operation through the lifecycle of the asset The procurement will cover both replacement of end-of-life engines and new installations to meet growing demand. The current aim is to award a single-source agreement to enable standardisation, improve serviceability, and reduce complexity across the estate. Please note that that deadline for asking for access to the PSQ & submitting of the PSQ is 28th November 2025, at 10 am. ## Key Details | Field | Value | | --- | --- | | Publication source | Find A Tender Service | | Latest notice | https://www.find-tender.service.gov.uk/Notice/071910-2025 | | 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 | 7 Nov 2025 | | Submission deadline | 28 Nov 2025 | | Future notice date | Not specified | | Award date | Not specified | | Contract period | 31 May 2026 - 30 May 2034 | | Recurrence | Not specified | ## Values | Field | Value | | --- | --- | | Tender value | Not specified | | Lots value | Not specified | | 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 | THAMES WATER UTILITIES LIMITED | | Locality | READING | | Post town | Reading | | Postcode | RG1 8DB | | Country | England | | ITL 1 | TLJ South East (England) | | ITL 2 | TLJ1 Berkshire, Buckinghamshire and Oxfordshire | | ITL 3 | TLJ16 Berkshire West | | Local authority | Reading | | Electoral ward | Thames | | Westminster constituency | Reading Central | | Delivery location | TLI London, TLJ South East (England) | ## CPV Codes ### Divisions - 34 - Transport equipment and auxiliary products to transportation - 42 - Industrial machinery - 50 - Repair and maintenance services ### Codes - 34311110 - Spark-ignition engines - 42110000 - Turbines and motors - 42510000 - Heat-exchange units, air-conditioning and refrigerating equipment, and filtering machinery - 50530000 - Repair and maintenance services of machinery ## Release History - 7 Nov 2025 at 10:31 - TenderUpdate - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/071910-2025 - 31 Oct 2025 at 11:23 - Tender - UK4 - Tender Notice - https://www.find-tender.service.gov.uk/Notice/070025-2025 ## Documents - https://www.find-tender.service.gov.uk/Notice/071910-2025 7th November 2025 - Tender notice on Find a Tender - https://www.find-tender.service.gov.uk/Notice/070025-2025 31st October 2025 - Tender notice on Find a Tender ## Notice URLs - https://forms.office.com/e/pb0jdHXSdy - 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-05d7ce. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-h6vhtk-05d7ce.json.