Research Article
Grid-Connected Semitransparent Building-Integrated Photovoltaic System: The Comprehensive Case Study of the 120 kWp Plant in Kunming, China
Table 5
The variation of the payback period and NPV with the interest rate.
| | Government subsidy (RMB yuan) | 2,500,000 | 2,500,000 | 2,500,000 | 2,200,000 | 2,400,000 | 2,600,000 |
| | Nominal interest rate | 4.00% | 4.50% | 4.25% | 4.00% | 4.00% | 4.00% | | Inflation rate | 3.00% | 2.00% | 1.50% | 3.00% | 3.00% | 3.00% | | Real rate of interest [39] | 0.97% | 2.45% | 2.71% | 0.97% | 0.97% | 0.97% | | Payback period (years) | 15 | 17 | 18 | 24 | 18 | 13 | | NPV (RMB yuan) | 359,347 | 211,565 | 189,551 | 62,133 | 260,210 | 458,287 |
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