Substation construction cost (Baht)
SCC = Substation construction cost (Baht)
EC22 = Electrical cost of 22 kV system (Baht/month)
EC115 = Electrical cost of 115 kV system (Bath/month)
OC = Outage cost (Baht/event)
F22 = Outage frequency of 22 kV system (event/year)
F115 = Outage frequency of 115 kV system (event/year)
PM = Preventive maintenance cost (Baht/year)
OPE = Operating cost (Baht/year)
Power loss cost of power transformer (Baht/year)