The "San Carlo Trieste" of Milan becomes smart & green

Milan, june 26th 2019

How to manage at best the energy impact of a large condominium consisting of 32 buildings inhabited by about 1,900 families. We succeeded in drastically reduce the carbon footprint of a residential estate in the southwest part of Milan, with relevant economic benefits for families.

Works to modernize the facility, serving the estate owned by San Carlo Trieste and previously consisting of six gas boilers for heating and warm sanitary water, were concluded with the final connection of the co-generator to the medium-voltage grid. Using latest technology, We implemented facilities that guarantee clean energy to the whole complex: A new co-generation plant composed by two new 2MW condensing boilers, two 0.4MW co-generators for the production of electric energy and a 1.2MW geothermal heat pump that uses groundwater recovered by two wells.

Thanks to this implementation, the neighborhood is at the forefront in terms of energy efficiency, with significant benefits for citizens and the environment: a substantial cost savings of around 200,000 euros a year and an equally important saving of CO2 emissions in the atmosphere of more than 1,250 tons a year.

We also built an electrical charging station for vehicles and has equipped the neighborhood with two electric cars and a Car Sharing service, in collaboration with E-Vai, that can be used by the estate residents under exclusive economic conditions.


«This ambitious plan on a residential estate with such important dimensions represents a great success both for the innovative solution adopted and also because permits us to bring clean energy to a large number of families and citizens, contributing to the air quality of the city of Milan. Our goal is to realize a completely transition towards zero impact energies. We believe that, acting together, we can significantly reduce our ecological footprint and be the solution for our planet».

Olivier Jacquier, CEO ENGIE Italy


The innovative technologies  to produce electricity and the use of groundwater to produce heat allow huge savings in terms of environmental impact, compared to liquid fuel, On top of this, to complete the  scope of the contract, ENGIE also took over the redevelopment of the green area surrounding the plant and provided a lighting system. ENGIE makes the neighborhood greener and gives an example of excellence and inspiration for the other districts of the city.

We manage more than 3,000 blocks of flats, of which over 600 in Milan. Furthermore, in the capital of Lombardia region we ensure energy to 525 Municipal buildings, to Teatro Alla Scala and many services to the stadium Giuseppe Meazza of San Siro, to the Università degli Studi and to many others public-sector and private customers.