Social housing: net zero progress report - quarter 2 2024

Project Title: East Ayrshire Deep Retrofit Pathfinder

Project Organisation: East Ayrshire Council

Technology Type(s): PAS 2035 principles, EnerPhit retrofit and LETI Whole House Retrofit - including a mix of ASHP, HHRSHs, Solar PV, Battery Storage, Thermal Storage, EWI, CWI,UFI, RI

Location(s): Darvel Kilmarnock and Rankinston, East Ayrshire Council

Grant Value: £534,976

Completion Date: Projected December 2024

Project Headline: This ‘Pathfinder’ Project comprises of three separate approaches to deliver whole house retrofit in a single phase of works and to monitor outcomes

Project Description:

This project involves the following three strands:

Strand 1 – PAS 2035

Six flats in Kilmarnock have been identified to benefit from a whole house retrofit under the principles of PAS 2035 to minimise space heat demand and emissions. The flats are currently heated with mains gas boiler systems. Measures to be fitted include a mix of ASHPs, EWI, floor insulation, insulated roofing, solar PV, domestic hot water storage tank, battery storage and high retention storage heaters, where required.

Strand 2 – LETI

Eight homes (a mix of flats and houses) in Rankinston have been identified to benefit from a LETI whole house retrofit. Rankinston is an off-gas area with a mix of old electric storage heaters, of oil and solid fuel. Measure to be fitted include a mix of EWI or CWI (as appropriate), floor insulation, solar PV, solar thermal, domestic hot water storage tank, battery storage and ASHPs.

Strand 3 – EnerPhit

Four void flats in Darvel have been identified as ideal candidates for a retrofit to EnerPhit standard. The flats currently have gas central heating systems which will be replaced by ASHP alongside deep fabric improvements including insulation measures and microgeneration.

Monitoring

In all three areas, monitoring equipment will be installed, and the building performance will be monitored for a period of three years. East Ayrshire Council will not only compare pre and post install data to evaluate the effectiveness of the system installed but also compare the three approaches in terms of cost, effectiveness and practicality and deliverability for roll out on a wider scale.