Retrofitting Historic Buildings - Westminster City Council

Installed Solar Thermal Panels on the roofPerformanceSolid wall insulation and secondary glazing being installed at the propertyFurther information on the specification is available from EnergySaving Trust 72 . Monitoring undertaken by Rickaby Thompson for aperiod of 19 months post completion suggests that assumptionsmade in the initial feasibility study about occupants’ heatingpreferences were inaccurate. The actual consumption of electricitywas 7% less than predicted, but gas consumption was 57% higher.A revised simulation model, taking into account more accurate detailsregarding occupancy, heating demand and internal temperaturepreferences demonstrated that to maintain the actual measuredinternal temperatures in the original unimproved building would havecost an additional £7450 and result in an additional 16.62 tonnes ofCO 2 . The user satisfaction ratings were also high with users feeling73comfortable, with some scope for further temperature reduction.57