RdSAP Is Changing
OHM Energy Sussex
If you work in the world of energy assessments, retrofitting, or renewable installations – or if you’re a homeowner planning energy efficiency upgrades – it’s time to take note: RdSAP 10 launched on 15 June 2025.
This update to the Reduced Data Standard Assessment Procedure (RdSAP) is a significant step forward, bringing better accuracy, greater recognition of renewable technologies, and improved regional data to the Energy Performance Certificate (EPC) process.
As the official method for assessing the energy performance of existing dwellings in the UK, RdSAP plays a crucial role in how we evaluate and plan energy efficiency improvements. At OHM Energy, we’re here to help you understand what’s changing – and why it matters.
RdSAP (Reduced Data Standard Assessment Procedure) is the simplified version of SAP (Standard Assessment Procedure), used specifically for existing buildings. It’s the foundation for producing Energy Performance Certificates (EPCs) – a requirement for selling, renting, or upgrading a home in the UK.
RdSAP assessments help identify:
The new RdSAP 10 update brings several enhancements to improve accuracy, reflect modern technologies, and align with the UK’s evolving energy landscape.
Key Updates in RdSAP 10:
Whether you’re a renewables installer, EPC assessor, retrofit coordinator, or a homeowner looking to future-proof your property, RdSAP 10 offers a more accurate and forward-thinking framework for assessing home energy performance.
For professionals, this means:
For homeowners:
To help professionals across the energy and retrofit sectors get up to speed, we recommend downloading the RISE RdSAP 10 advice pack here. It outlines the updates in detail and explains how these changes will affect:
As a trusted renewable energy installer serving Sussex, Surrey, and Kent, OHM Energy stays ahead of industry changes – so you don’t have to. Whether you’re installing solar, upgrading to a heat pump, or planning a full retrofit, we’ll ensure your project aligns with the latest RdSAP standards and EPC requirements.
📞 Want advice on making your home energy-efficient or future-ready?
Contact us today or request a free quote from our expert team.
Tel: 01323 739474
Email: hello@ohmenergy.co.uk
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