Towards Net Zero: Whole-House Energy Retrofits, Swansea

Swansea, United Kingdom, Europe

Completed · Residential · Social Housing Retrofit Programme · Temperate · 2022

A collaborative retrofit of energy-inefficient social homes off the mains gas grid in South and West Wales, led by Cardiff University's Welsh School of Architecture with Swansea Council and Wales & West Housing. Six demonstrator homes combined demand reduction, renewable supply and battery storage. Post-retrofit net operational carbon fell to 197 kgCO2e per year from 3,312 kgCO2e, and the approach is designed to be replicable at scale. Named 2023 CIBSE Building Performance Champion.

Innovation highlights

• Net operational carbon cut from 3,312 to 197 kgCO2e/yr
• Whole-house systems approach
• Replicable retrofit template
• Demand reduction plus renewables plus storage

Innovations in the catalogue

• Whole-House Retrofit Systems Approach
• Off-Gas Electrification with Renewables and Storage
• Replicable Retrofit Template for Scale

Client / Developer

Swansea Council / Wales & West Housing

Engineer

Low Carbon Built Environment Team, Welsh School of Architecture, Cardiff University

Type

Social Housing Retrofit Programme

#retrofit #social housing #whole house #net zero #battery storage #fuel poverty

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