Supermarket building (with heat recovery) Case Study This factsheet shows the potential of optimised technical building systems for supermarket buildings1. Supermarket buildings cover a floor area of approximately 115 million square meters within Europe. Reference Supermarket building Floor area: 1,025 m² view from Northeast View Northeast Final energy consumption: 181 kWh/m²a Heating Hot water Ventilation Cooling Lighting Gas condensing boiler (heat recovery from refrigeration system) - Mechanical ventilation system without heat recovery Central staged compression chiller for refrigeration and air conditioning Direct/indirect fluorescent tubes Technical building system Heating Hot water Ventilation Cooling Lighting Total [%] Total [kWh/m²a] Get the basics right Energy savings High performance Energy savings 17% 50% - - 23% 73% 30% 62% 0% 17% 14% 45% 26 82 The following table illustrates energy and energy cost savings as well as the required investment and payback period for the case study (building level). Optimisation package Final energy savings [%] Energy cost savings* [Euro] Investment [Euro] Payback period [years] Get the basics right 14% 2,370 4,910 2.0 High performance 45% 8,080 36,110 4.5 * EU28 energy cost averages from 2017 to 2030 as used in EPBD impact assessment (Gas: 5.9 ct/kWh; District heat: 9.6 ct/kWh; Electricity: 21.9 ct/kWh) 1 In the underlying study of this factsheet two supermarket buildings have been analysed with and without heat recovery from the refrigeration system (up to five times higher space heating demand without heat recovery). This factsheet shows the supermarket building with heat recovery from the refrigeration system.
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