Planning retrofit measures, Retrofit technical considerations, Support for businesses delivering retrofit

Supply Chain Advice Pack: Solar Pholtovoltaic in domestic retrofit

Introduction

Solar Pholtovoltaic (PV) is a highly cost-effective solution that utilises otherwise unusable space within the home. For retrofit projects adding solar has one of the minimum installation disruption for the occupants, as well as helping to improve the EPC ratings as part of a decarbonation program. A 2-3kW solar system can improve the EPC of a property by 1-2 bands, for example a D rated property may be improved to a EPC band C or B. The addition of solar PV onto a building can help to reduce the energy bills in a medium sized home by an average of £330 annually.

Published: 28 May 2026

This advice pack will cover the basics of solar PV, funding requirements, technical considerations, battery storage and resident engagement.

Download the PDF below to access this Advice Pack. 

Readers that would like this document in a more accessible format should contact rise@turntown.co.uk.

To be kept up to date with future Advice Packs, resources developed for businesses working in retrofit, and upcoming training and events, please join the RISE supply chain mailing list. You’ll hear from us monthly, with relevant updates and information.

Join the mailing list here.