| Items | Annual costs (USDa) | Notes |
|---|---|---|
| Boiler for hot water | 25,000 | 200,000 USD (8 depreciation years)− 1 |
| Electric generator | 5700 | 80,000 USD (14 depreciation years)− 1 |
| Running cost | 14,400 | 1200 USD month− 1 |
| Maintenance cost | 15,000 | 1250 USD month− 1 |
| Labor cost | 35,000 | One person |
| Total | 95,100 |