The Spanish demonstrator is located in Zaragoza and its surroundings (Aragon region, in the North-East of Spain). Aragon is characterised by a large population concentrated in its capital city, which, together with the large number of industrial and service companies, generates a great area of energy consumption. The rest of the region has a very dispersed population (rural area) and a large number of renewable generation plants. To facilitate the integration of these renewable sources, it is proposed that all types of energy consumers and prosumers are incorporated into flexible markets, which is why the Spanish demonstrator consists of residential, office and industrial buildings, covering the main types of consumers in the area.

In order to address this challenge in a holistic way, this demo-site counts with URBENER as aggregator and main energy player of the demonstration area in order to make the link between the Spanish facilities and the energy market, and OMIE, the Spanish and Portuguese electricity market operator. On this basis, the demo-site counts with a total of four areas with a set of residential and non-residential buildings that will enable REEFLEX to exploit the potential of flexibility at different levels.

CIRCE’s headquarters demonstrator is located in a 15-year-old business park that is still in the process of expansion and incorporation of new tenants into existing offices. In addition to office space for more than 240 employees, CIRCE’s facilities include a storage system with a capacity of 18 kWh and 5 kW power, a solar PV generation installation of 13.5 kWp of and three electric vehicle charging points, one of which is bi-directional.

Along with the laboratories, this building has been designed as a living lab for testing both grid-connected and isolated renewable energy grids at national level, which makes possible the integration and testing of distributed resources such as photovoltaic generation, storage and electric vehicle charging facilities.

Urbener’s headquarters, located in an emblematic building in the centre of Zaragoza, has a 250 m2 floor where the HVAC system is controlled. Five separate zones have been created where the consumption can be measured in real time in each one. On the roof of the building there are two outdoor air conditioning machines, which are connected to the indoor machines of the pilot plant. It also has humidity, temperature and luminosity sensors in each zone for a better study of the flexibility that can be provided. The installation consists of a gateway of intesis that thanks to it everything is controlled, it also consists of two clamps of measurement, one to know the consumption and another one that controls the climate.
Zaragoza Vivienda (Housing company), manages the social housing offer with 2,200 social rent dwellings in order to attend  vulnerable population. The purpose of Zaragoza Vivienda is to achieve greater efficiency in the municipal actions designed to promote the regeneration of the city and its housing sector, the construction of new buildings and urbanization of the land.

Demosite is composed by two simetrical plots with 192 social dwellings (Alejandro Casona and Margarita Xirgú), built in 1992 managed by Zaragoza Vivienda (Owner). The current energy behaviour is extremely poor with a provisional Energy Certification E and with individual gas boilers for Heating and DHW. In one of the two promotions there is PV installation (26kW PV).

The inhabitants are tenants, vulnerable population with social rent  with a mixed profile (families, monoparental families, ederly population). Zaragoza Vivienda provides social support to the tenants in order to help them to promote their lives.”


  • Greece

    The Greek demo-site is located in the city centre of Thessaloniki and is composed of a set of 50 residential buildings, 3 energy retail stores and one large commercial facility managed by WVT as utility company together with INNO as energy efficiency services provider. Therefore, the whole demonstration area will represent a common EU neighbourhood and will aim at obtaining real experiences on how EU citizens can participate in and facilitate the deployment of flexibility services supporting the grid operators.

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  • Switzerland

    Motta district is an urban area with residential buildings, offices, warehouses, and an elderly care home. All prosumers are connected to the AEM distribution network and are served by a 400 kVA substation. The pilot site leverages the existing smart metering infrastructure, with 2 years of 15-minute consumption and production historical data. Moreover, the district has a PV plant and a V2G-ready EV charging column for additional flexibility.

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  • Bulgaria

    Sofia is Bulgaria’s capital, the largest Bulgarian city, and the 13th largest city in the European Union. It hosts some 1.24 million residents within a territory of 492 km2, a concentration of 17.9% of the country population within the 200th percentile of the country territory. Sofia is the economic hub of Bulgaria.

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