Cold climate, with yearly average 8.6°C. Building from 1902, recently retrofitted. Multi-storey house with three commercial activities on the ground floor, 12 apartments on the other floors and a total floor area of 998 m2. The annual final energy consumption is 194 kWh/m2, of which 155 kWh/m2 from natural gas, 12 kWh/m2 from coal and 27 kWh/m2 from electricity. The annual heating demands are 111 kWh/m2 for space heating and 33 kWh/m2 for DHW.
Design and realization of a heat pump based Thermowatt system that would use communal wastewater to heat and cool buildings around the St. Stephan Square in Budapest District 4. Humid climate, annual average temperature 11.2 °C. The expected wastewater temperature is 15-20°C and the available wastewater flow is about 250 m3/hour.
Suptropical Mediterranean climate with very mild winters and long warm to hot summers. The annual average temperature is 17.8 °C. Building from 2001. Ground floor assigned to commercial use, and 4 other floors, which are dedicated to residential use. The building has a centralized natural gas boiler and there are no installed RES for heating or electricity. The annual final energy consumption is 61 kWh/m2, of which 54 kWh/m2 from natural gas and 7 kWh/m2 from electricity.
Helsinki, the capital of Finland, has a population of over 626,300 inhabitants and greater Helsinki does even count up to 1.4 million. Helsinki is Finland´s major political, educational, financial, cultural and research centre as well as one of northern Europe´s major cities.
More liveable space for more residents
Smart urban transformation for citizens
Within IRIS, Utrecht combines solar energy, affordable social housing and broad access to electric mobility. These solutions are developed together with citizens and built on open data to accelerate change.
Home to 350.000 inhabitants, Utrecht is the fourth largest municipality in the Netherlands and the fastest growing city in the country with a predicted 400.000 inhabitants in 2025. Utrecht's core ambition is to be a climate neutral city by 2030.
