Impact of differentiated local subsidy policies on the development of distributed energy system

Optimal unit sizing for small-scale integrated energy systems using multi-objective interval optimization and evidential reasoning approach

“…In addition, as the labor cost takes a large portion of the cost that should be paid during the operation periods, it is also taken into account in this model, which is treated as a constant annual salary according to the economic indicators reported in Ref. [25]. The expression of the maintenance cost is given as follows.…”

“…The heating season and the cooling season are assumed to be 5 months and 4 months per year, respectively. Suppose two labors are employed to work in the DH/DHC station and the annual salary is set to be 8026$ for each labor [25]. Table 4 shows the pollutant emission factors and the environmental values of electricity and natural gas.…”

Evaluating the performance of biomass gasification based combined cooling, heating, and power system operated under different operating strategies

“…On the contrary, if the PGU generates more electricity than that required for the building, excess electricity is discharged because the electricity selling technology is not mature in some areas. 23,29,30 It should be noted that the storages for electricity and heat was not considered in the analysis. There are two reasons for this.…”