In this work, a TRNSYS model of a five-story hotel located
in Northern Italy is used to evaluate simple energy flexibility
strategies for the cooling season to be used in a possible
smart grid integration. The strategies are demandside
and include energy efficiency and load shifting. Two
models are used, one of the building envelopes, to evaluate
the instantaneous heating and cooling demands, and
the HVAC system model, used to simulate the heating and
cooling production by two multifunctional heat pumps
and two heat pump boosters for the domestic hot water
production. The flexibility strategies are applied in the
building model controlling the room thermostats while the
heating and cooling demands are calculated using measured
occupation profiles. On the other hand, the hot and
cold-water tanks set point temperatures are used to implement
the energy flexibility of the HVAC system. In both
cases, the target is to shift the loads in the PV panels production
hours, reducing the electricity demands from the
grid during the other hours.
