What is HEETSA (Heat and Energy Efficiency Technical Suitability Assessment)
The Scottish Government's HEETSA (Heat and Energy Efficiency Technical Suitability Assessment) is
a proposed new framework to provide detailed, property-specific guidance for home energy retrofits, going beyond standard Energy Performance Certificates (EPCs) to ensure homeowners install the right measures, protecting consumers and boosting decarbonisation goals. Introduced via a June 2025 consultation, HEETSA aims for a standardized, data-driven assessment by qualified professionals, involving on-site inspections and occupant behaviour analysis to create a robust plan for effective energy improvements. Industry bodies broadly support the concept but stress the need for practical, affordable implementation with strong consumer protection and finance options.
Key Aspects of HEETSA:
Beyond EPCs: Offers a more bespoke, technical assessment than the current EPC system for choosing heating and insulation upgrades.
Consumer Protection: Aims to prevent unsuitable or ineffective installations, safeguarding homeowners from poor investments.
Standardized Approach: Seeks to create consistency and quality in retrofit projects across Scotland.
Qualified Professionals: Will involve independent, highly skilled assessors.
Holistic View: Considers whole-building performance and long-term carbon impact.
Development & Consultation:
The Scottish Government launched a scoping consultation in June 2025 to gather views on the proposals.
Research led by Glasgow Caledonian University informed the framework.
Industry groups, including the Retrofit Roundtable, have welcomed the initiative but highlighted concerns about deliverability, cost, and the need for a strong support framework (finance, redress) for consumers.
Next Steps:
Further consultations and development are expected, with a focus on ensuring HEETSA is practical, affordable, and effectively implemented to meet Scotland's climate targets.

