--- title: "Prior Information Notice - Project Wren" ocid: "ocds-b5fd17-710245be-da04-42a6-9795-5e43dd5a11b4" canonical_url: "https://d3tenders.com/contract/?ocid=ocds-b5fd17-710245be-da04-42a6-9795-5e43dd5a11b4" markdown_url: "https://d3tenders.com/contract/ocds-b5fd17-710245be-da04-42a6-9795-5e43dd5a11b4.md" json_url: "https://d3tenders.com/contract/ocds-b5fd17-710245be-da04-42a6-9795-5e43dd5a11b4.json" source: "Contracts Finder" current_stage: "Planning" buyer: "GOVERNMENT PROPERTY AGENCY" published: "2025-06-17" --- # Prior Information Notice - Project Wren Buyer: GOVERNMENT PROPERTY AGENCY Current stage: Planning OCID: ocds-b5fd17-710245be-da04-42a6-9795-5e43dd5a11b4 [View canonical contract page](https://d3tenders.com/contract/?ocid=ocds-b5fd17-710245be-da04-42a6-9795-5e43dd5a11b4) [Download OCDS JSON](https://d3tenders.com/contract/ocds-b5fd17-710245be-da04-42a6-9795-5e43dd5a11b4.json) ## Summary The procurement process for "Project Wren" is currently in the planning stage with a Prior Information Notice issued by the Government Property Agency (GPA). The project focuses on the district heating industry, specifically regarding the decarbonisation of the Whitehall District Heating System in London, UK. The initiative, under the procurement identification number ocds-b5fd17-710245be-da04-42a6-9795-5e43dd5a11b4, seeks to replace key components within the heating system. Interested parties should note the engagement end date of 15 July 2025 and a market engagement meeting scheduled for 30 June 2025. The full project execution is slated to take place over two summer shutdown periods from May 2026 to May 2027. This procurement offers significant opportunities for businesses experienced in district heating and construction. Projects of this nature typically benefit from the involvement of SMEs due to their agility and innovative potential. Furthermore, firms with expertise in designing, building, and managing district heating projects, particularly those capable of handling site-specific customisations and securing necessary clearances like SC, will find this tender particularly relevant. Participation requires registration through the RM6313 Demand Management & Renewable Dynamic Purchasing System, enhancing competition and transparency. Such opportunities can serve as a substantial boon to companies looking to expand their portfolio in the UK's renewable energy and infrastructure sectors. ## Notice Prior Information Notice (PIN) The purpose of this PIN is to maximise transparency and competition for the upcoming tender being carried out via the Crown Commercial Services RM6313 Demand Management & Renewables Dynamic Purchasing (DPS) System. https://www.crowncommercial.gov.uk/agreements/RM6313 All details in this PIN are subject to updates or change. It is not a formal invitation to tender. Procurement / Project Information Project Wren Scope: The Whitehall District Heating System (WDHS) is currently powered by 4 large boilers and supplies heat to 17 Buildings across Whitehall in London. Project WREN (Whitehall Renewable Energy Network), aims to provide enabling works to potentially decarbonise the WDHS in future years to come. Project WREN will reduce the operating temperature from 145 degrees to 95 degrees and introduce a variable flow rate across the system; to achieve this the project will need to replace 49 Plate Heat Exchangers across 24 plant rooms in 11 buildings, as well as carrying out some modifications to the primary side pumps within the main boiler house. The new PHE's must be capable to withstand a potential second drop in operating temperature in the future to 65 degrees. Not all plantrooms are the same and therefore all designs will need to be tailored to each specific plantroom. The contract will be a design and build contract, the contractor will be given a RIBA 3 developed design which they will progress to a RIBA 4 and issue 'Drawings for construction' for approval with the GPA. Notwithstanding any approval from the GPA the contractor will maintain design liability for the project. The Contractor will need to complete the onsite works within 2 summer shut down periods between 01 May 2026 to 30 September 2026 and 01 May 2027 to 30 May 2027, when the district heating system is not in operation. Due to the location and security level of the project all personnel working on the project must hold a minimum of SC clearance. Dynamic Purchasing System (DPS) It is intended that the tender will be held via Crown Commercial Services RM6313 Demand Management & Renewables DPS. To participate in the tender, you will need to be a registered RM6313 supplier. DPS registration details are here: https://www.crowncommercial.gov.uk/information-for-buyers-and-suppliers/start-supplying/become-a-supplier-on-a-dynamic-purchasing-system-dps Market Engagement (ME) An initial market engagement session is scheduled on 30/06/2025 at 10 - 11am via Googlemeet. A questionnaire will be issued to all interested parties, with the aim of helping GPA understand the market and refine the project deliverables. To attend the market engagement meeting and receive a copy of the questionnaire, Please email netzeroprocurement@gpa.gov.uk ## Key Details | Field | Value | | --- | --- | | Publication source | Contracts Finder | | Latest notice | https://www.contractsfinder.service.gov.uk/Notice/4794a783-bc1c-4315-8a44-cdf7ebc92983 | | Notice type | Market Engagement Notice | | Procurement type | Dynamic | | Procurement category | Not specified | | Procurement method | Not Specified | | Procurement method details | Not specified | | Tender suitability | SME | | Awardee scale | Not specified | | All stages | Planning | ## Dates | Field | Value | | --- | --- | | Publication date | 17 Jun 2025 | | Submission deadline | Not specified | | Future notice date | 15 Jul 2025 | | Award date | Not specified | | Contract period | Not specified | | 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 | Planning | | Lots status | Not specified | | Awards status | Not specified | | Contracts status | Not specified | ## Buyer | Field | Value | | --- | --- | | Main buyer | GOVERNMENT PROPERTY AGENCY | | Locality | LONDON | | Post town | South West London | | Postcode | SW1H 0NN | | Country | England | | ITL 1 | TLI London | | ITL 2 | TLI3 Inner London - West | | ITL 3 | TLI35 Westminster and City of London | | Local authority | Westminster | | Electoral ward | St James's | | Westminster constituency | Cities of London and Westminster | | Delivery location | TLI London | ## CPV Codes ### Divisions - 09 - Petroleum products, fuel, electricity and other sources of energy - 45 - Construction work ### Codes - 09323000 - District heating - 45251250 - District-heating plant construction work ## Release History - 17 Jun 2025 at 15:46 - Planning - Market Engagement Notice - https://www.contractsfinder.service.gov.uk/Notice/4794a783-bc1c-4315-8a44-cdf7ebc92983 ## Documents - https://www.contractsfinder.service.gov.uk/Notice/4794a783-bc1c-4315-8a44-cdf7ebc92983 17th June 2025 - Early engagement notice on Contracts Finder ## Notice URLs - https://www.crowncommercial.gov.uk/agreements/RM6313 - https://www.crowncommercial.gov.uk/information-for-buyers-and-suppliers/start-supplying/become-a-supplier-on-a-dynamic-purchasing-system-dps ## 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-b5fd17-710245be-da04-42a6-9795-5e43dd5a11b4. The underlying structured data is available as OCDS JSON at https://d3tenders.com/contract/ocds-b5fd17-710245be-da04-42a6-9795-5e43dd5a11b4.json.