Perisoglou, Emmanouil ORCID: https://orcid.org/0000-0002-7295-6058, Patterson, Joanne ORCID: https://orcid.org/0000-0002-4440-159X and Ionas, Miltiadis 2024. Evaluating the performance of six 1970s off-gas deep retrofit bungalows. Building Services Engineering Research & Technology 10.1177/01436244241287111 |
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Abstract
This paper presents the energy and environmental performance of whole house energy systems implemented in six 1970s bungalows in South Wales, owned by Swansea Council. The objective was to reduce energy demand and carbon emissions, maximise renewable supply whilst ensuring a comfortable and affordable home for the residents. The whole house energy system for each home involved the installation of a combination of passive and active low carbon solutions. Detailed monitoring was carried out for a year before and for more than 2 years after the work, annual figures have been validated and normalised for weather. Analysis of monitored data confirms that Standard Assessment Performance ratings improved from 12 to 95. The average annual energy consumption across the six bungalows was reduced from 16,117 to 4560 kWh. 2418 kWh was provided by the PV panels and battery, with 1963 kWh of excess electricity that could be sold back to the grid. Real-life average Ground Source Heat Pump CoP was monitored at 3.3. Embodied carbon for retrofitting each house is estimated at 22,980 KgCO2e +/−20%, approximately 5-years carbon payback. Indoor conditions have been improved with internal temperature and relative humidity achieving standards with residents reporting levels of improved comfort satisfaction.
Item Type: | Article |
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Date Type: | Published Online |
Status: | In Press |
Schools: | Architecture |
Publisher: | SAGE Publications |
ISSN: | 0143-6244 |
Funders: | WEFO, UKRI |
Date of First Compliant Deposit: | 1 October 2024 |
Date of Acceptance: | 11 September 2024 |
Last Modified: | 01 Nov 2024 12:13 |
URI: | https://orca.cardiff.ac.uk/id/eprint/172507 |
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