Energy Equalization and the Case of the “nZEB Hotels”

Nowadays, energy equalization is one of the many issues concerningthe energy policies on the urban scale and in the perspective of reducing theUrban Heat Island effects (UHI-e). The different economic-financial profiles ofthe interventions implemented in the buildings having a wide range of climaticlocations, typological arrangements, architectural-historical constraints, need tobe coordinated within unitary local energy-environmental policies inspired byeconomic-financial as well as environmental issues. The renovation of existinghotels to achieve a nearly Zero-Energy performance is one of the goals of the2050 EU’s energy policy. This paper presents the nZEB retrofit case of anexisting historic hotel and proposes a step by step approach to nZEB performancewith a perspective on the costs, in order to identify the most effectiveenergy solutions. Such approach allows highlighting useful insights regardingenergy and economic-financial strategies for achieving nZEB standards.