Directory data & guides
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PAS 2035 Standards & Quality
Links to key guidance documents for Retrofit Coordinators, Assessors, and Installers navigating UK whole-house retrofit standards.
- BSI Knowledge - PAS 2035:2023 Official Specification : The official page from the British Standards Institution (BSI) detailing the core specification and framework for retrofitting domestic buildings for improved energy efficiency.
- The Retrofit Academy - PAS 2035:2023 Standard Document (PDF) : A full downloadable copy of the overarching technical standards and guidelines guiding the assessment and design stages of home energy upgrades.
- TrustMark - PEPA Retrofit Assessor Scheme Requirements (PDF) : The operational criteria and scheme quality controls mandatory for accredited assessors operating within government-backed retrofit installations.
- The Insulation Assurance Authority (IAA) - Guide to PAS 2035/2030:2023 Standards : An industry breakdown detailing property inspection criteria, ventilation rules, and technical risk pathways.
- Trade Engine - Retrofit Framework & Quality Management Downloads : A resource library offering structured process flowcharts, compliance toolkits, and quality management maps for installation contractors.
- Royal Institution of Chartered Surveyors (RICS) - Residential Retrofit Standard (PDF) : Professional practice guidelines addressing quality controls, legal liability, and reporting parameters for surveyors performing domestic energy upgrades.
Decarbonisation Funding & Grants
Links to information on Social Housing Decarbonisation Fund (SHDF), Home Upgrade Grant (HUG), local authority and other funding streams.
- GOV.UK - Warm Homes: Social Housing Fund Wave 3 Official Guidance : The definitive government portal detailing the core framework, technical annexes, and allocation data for what was previously known as the Social Housing Decarbonisation Fund (SHDF).
- GOV.UK - Warm Homes: Social Housing Fund Wave 3 Scheme Guidance & Addendums (PDF) : The official technical specification updates detailing funding mechanisms, eligibility criteria, and delivery timelines for housing associations and local authority providers.
- GOV.UK - Warm Homes: Local Grant Portal : The official regulatory and administrative hub for local authorities delivering energy performance upgrades. This consolidated stream serves as the formal operational successor to the Home Upgrade Grant (HUG) and Local Authority Delivery (LAD) schemes.
- GOV.UK - Warm Homes: Local Grant Policy Guidance (PDF) : Comprehensive baseline policy guidance outlining the dual £15k cost cap mechanics, household eligibility, and the implementation guidelines for transition to the RdSAP10 methodology.
- GOV.UK - Apply for the Warm Homes: Local Grant Portal : The live public eligibility checker and application gateway used by privately owned and privately rented low-income households to access funding directly through their local councils.
- GOV.UK - Successful Local Authorities Funding Allocations : Official records outlining the direct distribution of localized funding streams, including special allocations under the Warm Homes and Public Sector Decarbonisation Devolution Programme.
- Salix Finance - Housing Programme Delivery Hub : The delivery partner documentation, case studies, and compliance toolkits used by social housing providers and local councils to distribute decarbonisation funds.
Heat Pump Integration Research
Links to research on heat pump integration, including the Heat Pump Centre and the Heat Pump Association .
- GOV.UK / DESNZ - Heat Pump Ready Programme: Background on Innovation Needs (PDF) : A comprehensive technical review detailing system innovations, plug-and-play modular heat pump setups, digital integration, buffer tank balancing, and optimizing flow temperatures.
- GOV.UK - Transition to Heat Pumps Technical Annex (PDF) : A 2026 data-driven study analyzing how households moving to heat pumps across capital funding projects (ECO4, Warm Homes Fund) balance fabric insulation alongside low-carbon heating installations.
- GOV.UK - Leeds RHINOS Heat Pump Ready Project Report (PDF) : An operational feasibility study and real-world deployment model tracking high-density urban clusters utilizing individual heat pumps linked to shared ambient ground loops.
- UK Energy Research Centre (UKERC) - Accelerating Energy Efficiency Retrofits in Owner-Occupied Homes (PDF) : An academic paper matching heat pump deployment speeds against traditional thermal envelope treatments, analyzing the dynamic interplay between direct grants like the Boiler Upgrade Scheme and structural fabric improvements.
- ClimateXChange Scotland - Balancing Investment in Clean Heat and Energy Efficiency : The ScotCODE study exploring the performance and lifecycle cost optimization of installing Air Source Heat Pumps (ASHPs) inside older stone dwellings and tenements vs. installing fabric insulation measures first.
- UK Collaborative Centre for Housing Evidence (CaCHE) - Heat Pumps & Domestic Heat Decarbonisation (PDF) : A systems-thinking evaluation exploring technical deployment barriers, institutional supply chains, consumer behavior, and local authority strategies when moving away from fossil fuels.
- ScienceDirect - Multi-Criteria Decision-Making (MCDM) Approach for Heat Pumps in Retrofits : A formal academic research case study assessing the selection mechanics of different heat pump variants (air, ground, water, ventilation-exhaust) inside typical UK domestic layouts.
Community Energy & Retrofit Models
Links to research on community energy and retrofit models, including the Community Energy England and the Community Energy Scotland .
- GOV.UK - Local Power Plan (LPP) Framework : The official government infrastructure document tracking the allocation of GB Energy's £1bn capital deployment fund to support community-owned renewables, scalable business models, and local energy generation partnerships.
- UK Parliament - How Community Energy Can Turbocharge the Transition : A comprehensive House of Commons Select Committee report analyzing price security, local supply regimes, community export guarantees, and regulatory barriers to community-led retrofitting.
- Energy Saving Trust - Delivering Warm Homes Through Community Power : An operational brief outlining how the Warm Homes Plan and Local Power Plan integrate, focusing on area-based retrofitting models, post-installation localized support, and procurement template guidance.
- Centre for Sustainable Energy (CSE) - Community Retrofit Guide (PDF) : A comprehensive operational handbook for grassroots community groups mapping local assessor networks, establishing localized supply chains, and initiating aggregate community-led retrofit surveys.
- Community Energy England - Data & Digital Resources Hub : A repository of structural tools containing the Home Retrofit Planner software and data models designed to run aggregate community energy assessments and street-by-street retrofit pipelines.
- Net Zero Go - Local Climate Resource Library : An implementation library backed by the Local Net Zero Hubs, providing vetted business cases, crowdfunding structures, local climate bonds, and municipal joint-venture contracts.
- Buildings and Cities Journal - Six Types of Local Authority Energy Service Models : A peer-reviewed empirical study outlining structural delivery mechanisms for localized retrofitting, categorizing municipal in-house programs, third-sector enterprises, and Energy Performance Contracts (EPCs).
- ACAN UK - Community Retrofit Map Platform : An interactive, live digital database mapping active UK grassroots community-led retrofit initiatives, ecovillage projects, and alternative cooperative housing funding models.