ITALY DEMO CASE

Location: Bagnolo in Piano, Reggio Emilia, Italy.
Building Description: Large multifamily house finished in 1985 and has two staircases and four floors.
Building Features: The building is a concrete structure, with brick cavity walls envelope, and hollow block floors and roof. The windows are single glass and wood frame.
HVAC Facts: The building is equipped with centralized gas boilers that provide energy for heating and domestic hot water (DHW). Air-Conditioning units provide cooling to some of the apartments.
Retrofit package: The building will be deeply retrofitted with the whole HEART toolkit. Existing fuel-powered generators will be replaced with the high efficiency heat pumps. Each apartment will be equipped with three Smart fan-coils, connected to the heat pumps (DC-HP), in order to provide both heating and cooling. The electricity generated by Building-Integrated Photovoltaics (BIPV) is approximately 10 kWp, will be mainly used to power the heat pump directly, using one multi-input multi-output unit (MIMO). In order to allow the storage of excess energy, thermal storage of about 4000 liters and a battery pack of 3 kWh, will be connected to the DC-HP. Windows refurbishment and opaque envelope insulation on the rest of the façades and roof will contribute to reducing the energy demand.

FRANCE DEMO CASE

Location: Lyon, France.
Building Description: Large multifamily house finished in 1975 with three staircases and five floors. It has a net surface of about 1300 m2.
Features: The building is a concrete structure, with honeycomb clay masonry envelope, and hollow block floors and roof. The windows are single glass and PVC frame.
HVAC facts: The building is equipped with centralized gas boilers which provide energy for heating and DHW. Some apartments are equipped with AC units for cooling.
Retrofit package: The building will be deeply retrofitted with the whole HEART toolkit. Multifunctional external thermal insulation and windows refurbishment techniques will be applied in order to reduce the energy demand of the building significantly. At the same time, the existing fuel-powered generators will be replaced with two units of high efficiency heat pumps connected to 54 smart-fan coils which provide both heating and cooling to the apartments. The roof will be covered with about 375 m2 of BIPV (25 kWp) directly coupled with DC-HP and two MIMO units. Thermal storage of about 8000 liters and a battery pack of 6 kWh, will increase the on-site self-consumption, and avoid grid overloading.