Table 1.
Estimated cost and payback period of the 120-kW thermoelectric generation system87
| Nameplate capacity (kW) |
120 |
Note | |
|---|---|---|---|
| Operating hours (h) | 8,000 | ||
| System establishment cost | A. Equipment price (US$) | 400,000 | – |
| B. Expected subsidy (US$) | 134,000 | Government subsidy covers one-third of the implementation costs | |
| C. Installation cost (US$) | 16,700 | – | |
| D. Cost without subsidy (US$) | 416,700 | A + C | |
| E. Cost with subsidy (US$) | 282,700 | A + C-B | |
| Maintenance cost | F. System maintenance (US$/y) | 3,400 | Mainly electrical control components |
| Energy conservation | Annual generation (kW) | 960,000 | – |
| Electricity price (US$/kW) | 0.08 | – | |
| G. Electricity cost saved per year (US$) | 80,000 | – | |
| H. Net savings after deducting system maintenance cost (US$) | 76,600 | G-F | |
| Payback period | Cost without subsidy divided by cost saved (year) | 5.44 | D/H |
| Cost with subsidy divided by cost saved (year) | 3.70 | E/H | |