Notice Information
Notice Title
Homes for Net Zero Phase 3 (HfNZ P3)
Notice Description
DESNZ is seeking to procure a contractor/s to deliver Phase 3 of the Homes for Net Zero research programme (HfNZ P3). This is a continuation of our multiyear, largescale research and demonstration trial, building on the existing cohort of approximately 1,250 owner-occupied homes. Among other tasks the appointed contractor(s) will be responsible for trial management and coordination, longitudinal monitoring, data collection and processing, and participant engagement - including physical measurements in homes and social research with occupants. It will include research on practical, scalable pathways to decarbonising owner-occupied homes, particularly complex-to-decarbonise and space constrained properties, with a focus on low carbon heating. This includes evaluating the real-world performance, costs, and user experience of heat pumps (including reversible air-to-air systems), alternative electric heating and domestic hot water solutions. Consumer engagement approaches, and measures to improve resilience to a future climate, such as overheating mitigation, are also key elements of HfNZ P3. The programme will require delivery through competitively procured work packages (lots); * Lot 1: Trial management and co-ordination - including programme management of whole trial, collecting data from monitoring devices and ensuring high data quality, managing trial participants, supporting additional technology trials through an innovation test bed; * Lot 2: Data analysis and research - including technical analysis of in-home monitoring data to answer the research questions, and collaboration with Lots 3 and 4 to ensure methods are designed to address those questions. * Lot 3: Consumer engagement and social research - establishing best practice consumer engagement approaches to transition homes to low carbon heating and using these to support the delivery of measures in Lot 4, carrying out social research to support the research objectives in collaboration with Lot 2. * Lot 4: Design and installation of low carbon heating measures in homes - including, air-source heat pumps, reversible air-air heat pumps, alternative approaches to electric domestic hot water in space constrained homes and the specification and installation of monitoring equipment. Contractors will need to work collaboratively across the work packages as well as with DESNZ and possibly with linked programmes, notably Built Environment Adaptation and Resilience (BEAR) and Heat Pump Ready Programme (info here: https://www.gov.uk/government/publications/heat-pump-ready-programme/information-about-the-heat-pump-ready-programme#latest-opportunity-from-2026). Outputs are likely to include regular, publicly accessible research publications; including two annual reports with research findings, an annual trial delivery summary, and publication of datasets (subject to GDPR). The programme will also deliver thematic research briefs and a final report at project completion, with outputs designed to directly inform DESNZ policy development and analysis on clean heat, energy efficiency, and climate resilience. DESNZ is holding a supplier event on MS Teams on Wednesday 29th April 2026 from 1400 - 1600, consisting of presentations by DESNZ and interactive feedback sessions.
Planning Information
There will be a Supplier Engagement Call on 29th April 2026 from 1400 – 1600 GMT. If you are interested in this potential opportunity, please complete the MS Form with your company details. Link for sign-up form: https://forms.office.com/e/KgpgXyDnpr Following confirmation of company details and contact information, an ‘MS Teams’ invite will be circulated for the market engagement event on the week of the event. We would ask that you have a maximum of 2 attendees from each organisation. Participants will need to register by 5pm on 28.04.2026. Please send any clarification questions or queries to internationalclimateandenergy.procurement@energysecurity.gov.uk by 5pm GMT on 08.05.2026.
Notice Details
Publication & Lifecycle
- Open Contracting ID
- ocds-h6vhtk-068249
- Publication Source
- Find A Tender Service
- Latest Notice
- https://www.find-tender.service.gov.uk/Notice/033899-2026
- Current Stage
- Planning
- All Stages
- Planning
Procurement Classification
- Notice Type
- UK2 - Preliminary Market Engagement Notice
- Procurement Type
- Standard
- Procurement Category
- Services
- Procurement Method
- Not Specified
- Procurement Method Details
- Not specified
- Tender Suitability
- SME, VCSE
- Awardee Scale
- Not specified
Common Procurement Vocabulary (CPV)
- CPV Divisions
71 - Architectural, construction, engineering and inspection services
73 - Research and development services and related consultancy services
79 - Business services: law, marketing, consulting, recruitment, printing and security
-
- CPV Codes
71314300 - Energy-efficiency consultancy services
71314310 - Heating engineering services for buildings
73100000 - Research and experimental development services
73110000 - Research services
73300000 - Design and execution of research and development
79315000 - Social research services
Notice Value(s)
- Tender Value
- £8,150,000 £1M-£10M
- Lots Value
- Not specified
- Awards Value
- Not specified
- Contracts Value
- Not specified
Notice Dates
- Publication Date
- 14 Apr 20261 weeks ago
- Submission Deadline
- Not specified
- Future Notice Date
- 20 May 20264 weeks to go
- Award Date
- Not specified
- Contract Period
- 31 Jul 2026 - 31 Mar 2029 2-3 years
- Recurrence
- Not specified
Notice Status
- Tender Status
- Planning
- Lots Status
- Planning
- Awards Status
- Not Specified
- Contracts Status
- Not Specified
Buyer & Supplier
Contracting Authority (Buyer)
- Main Buyer
- DEPARTMENT FOR ENERGY SECURITY & NET ZERO
- Contact Name
- Available with D3 Tenders Premium →
- Contact Email
- Available with D3 Tenders Premium →
- Contact Phone
- Available with D3 Tenders Premium →
Buyer Location
- Locality
- LONDON
- Postcode
- SW1A 2HP
- Post Town
- South West London
- Country
- England
-
- Major Region (ITL 1)
- TLI London
- Basic Region (ITL 2)
- TLI3 Inner London - West
- Small Region (ITL 3)
- TLI35 Westminster and City of London
- Delivery Location
- Not specified
-
- Local Authority
- Westminster
- Electoral Ward
- St James's
- Westminster Constituency
- Cities of London and Westminster
Further Information
Notice Documents
-
https://www.find-tender.service.gov.uk/Notice/033899-2026
14th April 2026 - Preliminary market engagement notice on Find a Tender
Open Contracting Data Standard (OCDS)
View full OCDS Record for this contracting process
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.
{
"tag": [
"compiled"
],
"id": "ocds-h6vhtk-068249-2026-04-14T15:58:30+01:00",
"date": "2026-04-14T15:58:30+01:00",
"ocid": "ocds-h6vhtk-068249",
"initiationType": "tender",
"parties": [
{
"id": "GB-PPON-PDHQ-2163-WYMH",
"name": "Department for Energy Security & Net Zero",
"identifier": {
"scheme": "GB-PPON",
"id": "PDHQ-2163-WYMH"
},
"address": {
"streetAddress": "55 Whitehall",
"locality": "London",
"postalCode": "SW1A 2HP",
"country": "GB",
"countryName": "United Kingdom",
"region": "UKI32"
},
"contactPoint": {
"email": "internationalclimateandenergy.procurement@energysecurity.gov.uk"
},
"roles": [
"buyer"
],
"details": {
"classifications": [
{
"id": "publicAuthorityCentralGovernment",
"scheme": "UK_CA_TYPE",
"description": "Public authority - central government"
}
]
}
}
],
"buyer": {
"id": "GB-PPON-PDHQ-2163-WYMH",
"name": "Department for Energy Security & Net Zero"
},
"planning": {
"milestones": [
{
"id": "engagement",
"type": "engagement",
"description": "There will be a Supplier Engagement Call on 29th April 2026 from 1400 - 1600 GMT. If you are interested in this potential opportunity, please complete the MS Form with your company details. Link for sign-up form: https://forms.office.com/e/KgpgXyDnpr Following confirmation of company details and contact information, an 'MS Teams' invite will be circulated for the market engagement event on the week of the event. We would ask that you have a maximum of 2 attendees from each organisation. Participants will need to register by 5pm on 28.04.2026. Please send any clarification questions or queries to internationalclimateandenergy.procurement@energysecurity.gov.uk by 5pm GMT on 08.05.2026.",
"dueDate": "2026-05-08T23:59:59+01:00",
"status": "scheduled"
}
],
"documents": [
{
"id": "033899-2026",
"documentType": "marketEngagementNotice",
"noticeType": "UK2",
"description": "Preliminary market engagement notice on Find a Tender",
"url": "https://www.find-tender.service.gov.uk/Notice/033899-2026",
"datePublished": "2026-04-14T15:58:30+01:00",
"format": "text/html"
}
]
},
"tender": {
"id": "prj_6910",
"legalBasis": {
"id": "2023/54",
"scheme": "UKPGA",
"uri": "https://www.legislation.gov.uk/ukpga/2023/54/contents"
},
"title": "Homes for Net Zero Phase 3 (HfNZ P3)",
"description": "DESNZ is seeking to procure a contractor/s to deliver Phase 3 of the Homes for Net Zero research programme (HfNZ P3). This is a continuation of our multiyear, largescale research and demonstration trial, building on the existing cohort of approximately 1,250 owner-occupied homes. Among other tasks the appointed contractor(s) will be responsible for trial management and coordination, longitudinal monitoring, data collection and processing, and participant engagement - including physical measurements in homes and social research with occupants. It will include research on practical, scalable pathways to decarbonising owner-occupied homes, particularly complex-to-decarbonise and space constrained properties, with a focus on low carbon heating. This includes evaluating the real-world performance, costs, and user experience of heat pumps (including reversible air-to-air systems), alternative electric heating and domestic hot water solutions. Consumer engagement approaches, and measures to improve resilience to a future climate, such as overheating mitigation, are also key elements of HfNZ P3. The programme will require delivery through competitively procured work packages (lots); * Lot 1: Trial management and co-ordination - including programme management of whole trial, collecting data from monitoring devices and ensuring high data quality, managing trial participants, supporting additional technology trials through an innovation test bed; * Lot 2: Data analysis and research - including technical analysis of in-home monitoring data to answer the research questions, and collaboration with Lots 3 and 4 to ensure methods are designed to address those questions. * Lot 3: Consumer engagement and social research - establishing best practice consumer engagement approaches to transition homes to low carbon heating and using these to support the delivery of measures in Lot 4, carrying out social research to support the research objectives in collaboration with Lot 2. * Lot 4: Design and installation of low carbon heating measures in homes - including, air-source heat pumps, reversible air-air heat pumps, alternative approaches to electric domestic hot water in space constrained homes and the specification and installation of monitoring equipment. Contractors will need to work collaboratively across the work packages as well as with DESNZ and possibly with linked programmes, notably Built Environment Adaptation and Resilience (BEAR) and Heat Pump Ready Programme (info here: https://www.gov.uk/government/publications/heat-pump-ready-programme/information-about-the-heat-pump-ready-programme#latest-opportunity-from-2026). Outputs are likely to include regular, publicly accessible research publications; including two annual reports with research findings, an annual trial delivery summary, and publication of datasets (subject to GDPR). The programme will also deliver thematic research briefs and a final report at project completion, with outputs designed to directly inform DESNZ policy development and analysis on clean heat, energy efficiency, and climate resilience. DESNZ is holding a supplier event on MS Teams on Wednesday 29th April 2026 from 1400 - 1600, consisting of presentations by DESNZ and interactive feedback sessions.",
"items": [
{
"id": "1",
"additionalClassifications": [
{
"scheme": "CPV",
"id": "73110000",
"description": "Research services"
},
{
"scheme": "CPV",
"id": "73100000",
"description": "Research and experimental development services"
},
{
"scheme": "CPV",
"id": "73300000",
"description": "Design and execution of research and development"
},
{
"scheme": "CPV",
"id": "79315000",
"description": "Social research services"
},
{
"scheme": "CPV",
"id": "71314300",
"description": "Energy-efficiency consultancy services"
},
{
"scheme": "CPV",
"id": "71314310",
"description": "Heating engineering services for buildings"
}
],
"deliveryAddresses": [
{
"region": "UK",
"country": "GB",
"countryName": "United Kingdom"
}
],
"relatedLot": "1"
}
],
"value": {
"amountGross": 9780000,
"amount": 8150000,
"currency": "GBP"
},
"mainProcurementCategory": "services",
"aboveThreshold": true,
"lots": [
{
"id": "1",
"suitability": {
"sme": true,
"vcse": true
},
"contractPeriod": {
"startDate": "2026-08-01T00:00:00+01:00",
"endDate": "2029-03-31T23:59:59+01:00"
},
"status": "planning"
}
],
"communication": {
"futureNoticeDate": "2026-05-20T23:59:59+01:00"
},
"status": "planning"
},
"language": "en"
}