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Carrigbeg
A Rooney • 27 August 2020
Family home in Dun Laoghaire
Carrigbeg is a detached house in Dun Laoghaire built in 2009 with eight 160Wp Solarfun Monocrystalline PV modules on a south facing roof with a slope of c.35°. The DC output from the PV modules is converted into AC electricity by a Fronius IG15 inverter. The AC supply from the inverter is connected to the main household AC circuit. A MyEnergi Eddi controller diverts surplus PV output to a 3kW immersion heater in the HW tank. The house, which is occupied by two adults, is heated by a condensing gas boiler. Monthly energy consumption in Carrigbeg has been recorded since the Eddi controller was installed in February 2019. The resulting data set is summarised below;
Comparisons
A comparison between the two sites in Dun Laoghaire (Carrigbeg and Cherrytree Lodge) are interesting. The seasonal differences are the result of slightly different locations and orientations.
THE DEVELOPMENT OF A STORAGE COOKER THAT COULD BECOME THE HEART OF YOUR HOME
Urban sustainablity
The Passive House Plus standard when applied to this house indicated that the capacity of the PV array must be c.8.16 kWp at minimum. This was achieved using 24 LG 340Wp solar PV panels oriented East-West at a slope of 10°. The annual output from these PV panels, calculated using PVGIS, is 6,612 kWh. The total energy demand of the house (which is largely used for hot water and non-space heating appliances), calculated using 5-minute operating schedules for all electrical equipment and appliances, is 6,907 kWh.
