Social housing: net zero progress report - quarter 2 2024

Project Title: Cairn Housing Association – Whole House Retrofit

Project Organisation: Cairn Housing Association

Technology Type(s): ASHP, Solar PV and Battery Storage

Location(s): Wick, Highland Council

Grant Value: £92,813

Completion Date: November 2022

Project Headline: Whole house retrofit pathfinder of 2 homes in Wick

Project Description:

This project was as a pilot project for the organisation, which will act as a pathfinder for future projects to upgrade their housing stock. The project took the whole house retrofit approach and installed clean heating and energy efficiency measures to 2 homes in Wick, Scottish Highlands. These properties were built in the 1950s of traditional construction but had irregular cavity width with previously no wall insulation.

The measures included as ASHP, solar PV, battery storage, EWI, UFI, Roof Insulation, Triple glazed windows, external doors, MVHR. The houses were previously heated by a mix of storage heaters and panel heating, along with a hot water cylinder in a cupboard upstairs which provides hot water via immersion.

The aim of the whole house retrofit was to bring the properties to Enerphit standard.