In summary, there is a lack of using an efficient multi-objective
optimization algorithm to search for optimal solutions instead of
using simulation approach that evaluates the performance of a
limited number of configurations. Additionally, the integration of
transportation into a building energy supply system is seldomconsidered so that PEV are not part of an optimal HRES design.
Hence, it can be represented as a future research direction to study
how new transportation technologies may affect total NPC and CO2
emission of HRESs. In other words, the design of HRESs should
consider not only electricity, cooling and heating load but also the
required energy for transportation