Energy management and economics of a trigeneration system Considering the effect of solar PV, solar collector and fuel price

The effect of solar PVs, solar collectors and fuel price on optimization of a typical micro combined cooling, heating and power (CCHP) system based on a natural-gas generator (NGG) was investigated. The CCHP system was considered to supply the given cooling, heating and electricity demand of a 5 story high residential building; having a total of 1000 m(2) floor area with the peak electricity of 48 kW, heating and cooling needs of 100 and 50 kW, respectively. If Iran removes the fuel subsidy, the cost of fuel would increase and the PV or hybrid PV/Generator systems would become more attractive. In this paper, a techno-economical procedure was conducted by using two definitions of loss of power supply probability (LPSP) and levelized cost of energy (LCOE). The results indicated that the optimal operation strategy changes with boiler and NGG fuel prices while it also changes with increasing the number of solar collectors. (C) 2015 International Energy Initiative. Published by Elsevier Inc. All rights reserved.