Wegreenit was responsible for the energy requalification of the Super-condominium di via Mar Nero – Nikolajevka, in the western area of Milan (Baggio district), the largest energy efficiency project carried out in the residential sector in Lombardy and one of the largest in Italy.

The operation, with a total value of EUR 46 million, involved 18 buildings with a total of 547 residential units. As General Contractor, Wegreenit was in charge of the architectural and plant design up to the executive level, permitting, management of the financial operations related to the intervention, project management, supply of materials and plant technologies, realization of the intervention, works management and safety coordination.

In addition to the 48,000 m² of insulation and 8,100 m² of insulation and waterproofing of the roofing systems, photovoltaic systems combined with storage systems were installed on all buildings for a total energy production of 220,000 kWh/year. In addition, the project included the replacement of windows and doors on some buildings and the installation of solar shading. To replace the old heat generators, four condensing boilers with a total capacity of 2.3 MW were installed, serving a small district heating network that, through two rings, supplies heat to the entire district. The level of efficiency achieved by the building envelope has made it possible to reduce the installed power by about 40% compared to the pre-existing system. All these interventions are generating a 65% saving in utility bills and an increase of about 40% in the value of the 547 building units involved. In line with the new European Green Homes Directive, the individual housing units have gone from an average energy class of F to an average performance level of Class B, with peaks in Energy Class A2.

The intervention is also bringing economic, social and environmental benefits to the entire Baggio neighborhood in which the housing estate is located.