adopted revision of the European Energy Performance of Buildings
Directive (EPBD) requires that by 2028 all newly-constructed buildings
will be zero emission (ZEB, Zero Emission Building), and all existing
buildings will have to become zero emissions by 2050. Such obligations
will concern all residential and not-residential buildings (with some
exceptions) and will provide for the achievement of challenging energy
classes: residential buildings will have to reach class E by 2030 and
class D by 2033; the other buildings, including those owned by public
bodies, class E from 2027 and class D from 2030.
directive requires the Member States to present national plans for the
energy requalification of buildings, leaving 15% of the most
energy-intensive ones in the lowest energy class. According to Istat data, there are approximately 1.8 million residential buildings in Italy in class G out of a total of 12 million.
expected exemptions will be able to mitigate the impact of this
obligation, but the effects of the directive will be really important in
countries like Italy. Here a large part of the residential building
stock was built before 1991 and the deep renovation of the older
buildings would require significantly longer times than those expected
at the European level, with higher costs.
the same time, the increasing diffusion of renewable energy sources and
the electrification of energy uses introduce urgent issues concerning
the optimization of hybrid systems, the use of multi-source heat pump
systems, different types of energy storage (including the use of new
energy carriers such as hydrogen), in the context of an ever-increasing decarbonisation of buildings.
this context, it is suitable to investigate, through the contribution
of wide-ranging analysis and more specialized studies, the opportunities
provided by integrating technologies, systems, and building design in
the transition from NZEB to ZEB, also considering a better internal
Based on these items, the 53rd AiCARR
International Conference will present contributions of interest to the
HVAC sector, relating to innovative design approaches, new monitoring
and control systems, new components and systems, with related insights
into their impact on energy consumption, comfort (thermal-hygrometric,
acoustic, visual, air quality) and on the healthiness of internal