Demo Site 1: nZEB Smart House DIH, Mixed-use, Thessaloniki Greece

Thessaloniki, Greece

One demonstration building will be CERTH/ITI nZEB Smart House at CERTH premises in Greece, for the validation of the developed software components, through an iterative process. The Smart House is a fully operational rapid prototyping & novel technologies demonstration infrastructure of 316 m2, resembling a real domestic building where users can experience actual living scenarios while exploring various innovating smart technologies. The house is representative of a single-family, detached residential building and is already equipped with many IoT, smart home solutions that provide a lot of information about its operational characteristics It is equipped with a 9.57kWp PV system and a 5kWh Li-on battery, and a custom BMS for monitoring and control. It constantly evolves by actively participating as a pilot to different research projects and through the collaboration with local, national and cross-border companies. Hence, the existing infrastructure of the building will be extended to incorporate the proposed software tools.


Demo Site 2: Frederick University Main Building, Limassol, Cyprus

Limassol, Cyprus

Frederick’s University main building in Limassol Campus is a three-storey 4021 m2 building, built in 1996. The construction of the building follows the average practices of the Cypriot buildings of that era. It is a structure of reinforced concrete with brick walls and double-glazed windows. The Frederick’s Limassol campus building is a mixed-use building, hosting educational, administrative, and other services. The building hosts a total of 10 labs, 4 studios, 12 classrooms, 31 office spaces, and a cafeteria-restaurant on its ground floor. The building accounts for approximately 715 users, both academic staff, administrative staff, and students for 2021 and it includes central control of HVAC equipment.


Demo Site 3: Ehituse Mäemaja, Tallinn University of Technology (TalTech), Tallinn, Estonia

Tallinn, Estonia

Modern office and laboratory building constructed in 2020 fulfils NZEB (EPC class A) energy requirements in force in Estonia from 2020. The building produces solar electricity with the entire roof surface, and wooden structures have been used to reduce the carbon footprint. There is demand controlled heat recovery supply and exhaust ventilation and active chilled beam and ceiling panel room conditioning units. Most rooms have radiator heating, and the building is connected to an effective district heating network. Extra control and monitoring layer interface for BACS for reliable energy, system, and IEQ performance monitoring and simple fault detection is implemented as an energy management IoT platform.


Demo Site 4: Single family house, Leitza, Spain

Leitza, Spain

​​​​The single-family house was constructed in 2001, has a living area of 4 people and a living space of 420m2 (3-storeys of 150 m2). It was built in 2001, and in accordance with the type of construction of the time, it has some thermal insulation on the façade and the roof. Biomass is used for heating initially and if further heating is needed, the natural gas boiler will come into operation. DHW demand is also covered by the natural gas boiler.​


Demo Site 5: Private flat, Leitza, Spain

Leitza, Spain

​This case study is a 3-bedroom flat in a 3-storey building. It is located on the ground floor of the building and is adjacent to the garage and to the common area of the building. It was built in 1985.This housing is a flat with a constructed area of 130m2 and it has a living area of 4 people. It has an envelope without any insulation. And similar to the previous case, it has a wood-burning open fireplace for heating. But when it is not sufficient the gas boiler comes into operation. This gas boiler is used, as well as, for DHW. ​


Demo Site 6: Mixed-use Building, Leitza, Spain

Leitza, Spain

​This building is a mixed-use building built in 1860. Floors 1 and 2 are two apartments of 216 m2. And the lower lever is a commercial space, a chocolate shop where the air-cooling system is in operation 24 hours a day due to the activity's condition. For the air cooling, as well as, for heating, there is an air-air heat pump with an interior split. And there is a 50l electric water heater for DHW service. In each apartament the occupation is of 2 people. And they have a central installation for heating with a biomass boiler and an individual gas boiler in each apartment for heating and DHW. The only insulation in the building is on the roof.​​​


Demo Site 7: Town Hall, Leitza, Spain

Leitza, Spain

​Another case study is the city council. It was built in 1917, thus according to the construction time, it has a wooden structure and masonry walls. There are 22 daily employees working and it receives approximately 30 daily visitors. This building contains multiple uses: there is the municipal archives, a multipurpose room, an storage space, the court of justice, a radio station, social services, basque language school, forest management agency, offices for the municipal staff and the mayor as well as the assembly room. It has no insulation on the envelope. The heating system depends on the floor: the first floor is heated by water radiators and the second floor by fan-coils. But the heat water for both heating systems is obtained by a gas boiler. There is also an electrically heated tank in order to cover the little DHW demand. Finally, it is noteworthy that there is PV installation on the roof which is able to produce 3.4 kWh/m2y.​​


Demo Site 8: School Building Facilities, Leitza, Spain

Leitza, Spain

​The school was built in 1968 and since then no renovations have been made as an energy saving measure. It is compounded by an original principal 4-storey building and 2 annexed 3-storey buildings. It has a double brick façade without insulation. The exterior windows are made of single glazing with aluminium frames without thermal break or wood. And the heating system is based on a central gas boiler and radiators. And the point demand of DHW is covered by 2 electrically heated tanks.​​


Demo Site 9: Sports Centre, Leitza, Spain

Leitza, Spain

​​This building is the town's main sports centre. It is not a huge sports centre, it receives approximately 300 visitors per day. It was built in 2001 and the facade was renovated in 2016 with an aluminium ventilated facade as well as the windows. That is why the facade is well insulated. Insulation can also be found on the roof which is finished with sandwich panels. There is a diesel boiler for DHW with 1000 litres storage. And the overall conditioning system consists of an air heater with oil.​​​