เศรษฐศาสตร์

The economic analysis is conducted using the Levelized Energy Costing (LEnC) method, based on the net energy output from the IMWtE by the CHP system. The key parameters include the investment cost (Inv), operation and maintenance costs (OM), discount rate (r), annual operating time (tOT), real interest rate (iReal), inflation rate (iInflation), and deterioration factor (DF). The procedural steps for determining the economic outcomes are presented in Topics 3E and 1L model , The economics analysis present as Table.

Levelized cost swc

Description Baht USD
Exchange rate at 16 July 2025 32.511 1
Investment cost
Cost of building a plant (ZSWC) 1,232,200.00 37,901.02
Cost of incinerator (ZIC) 500,000 15,379
Cost of hot fluid tank (ZTank) 500,000 15,379
Cost of the ORC (ZORC) 2,500,000 76,897
Cost of Steam sterilization machine (ZSST) 53,560,000 1,647,442
Cost of drying room (ZDR) 200,000 6,152
Cost of piping and insulation (ZPI) 200,000 6,152
Cost of truck transportation (Ztt) 3,477 107
Total investment cost (Inv) 58,695,677 1,805,410
Operating and maintenance costs
The minimum labor cost in Thailand (OMMan) 330 10.15
Maintenance cost at 5% of investment cost (OMOP) 2,934,784 90,270.49
Operating and maintenance costs (OM) 3,050,284 93,823.13
Operating condition
Lifespan (n, y) 20 20
Operating time (tOP, h/d) 16 16
Operating time (tOP, d/y) 350 350
Levelized cost LElnC analysis
Real interest rate (iReal, %) 2.18% 2.18%
Inflation rate (iInflation, %) 2.30% 2.30%
Deterioration factor (DF, %) 2% 2%
Discount rate (r, %) -0.12% -0.12%
Net energy output (EIMMtECHP, kWh) 209.13 209.13
levelized logistics costing (LlnC) 6.29 0.19
Total lifetime impact (kg emission-eq) 2.97E+07 2.97E+07
Energy costing per life cycle assessment logistics (USD/kg emission-eq) 4.06E+00 1.25E-01