Table 3 Simulation results for Howard College Campus
From: Economic and environmental analysis of a grid-connected hybrid power system for a University Campus
Economic metrics | Base case | WT–DG–G | PV–WT–DG–G | WT–DG–B–G | PV–WT–G | WT–G |
|---|---|---|---|---|---|---|
Payback (years) | N/A | 3.9 | 4.0 | 4.1 | 4.0 | 3.9 |
COE (R/kWh) | 1.932 | 1.044 | 1.044 | 1.084 | 1.047 | 1.048 |
IRR (%) | N/A | 25.2 | 24.83 | 23.91 | 24.78 | 25.16 |
NPC (R) | 523 447 300 | 374 855 300 | 375 167 800 | 382 357 200 | 376 294 700 | 375 957 300 |
Annual utility bill saving (R) | N/A | 15 579 110 | 15 668 490 | 15 435 600 | 15 559 530 | 15 472 240 |
Environmental metrics | ||||||
CO2 emissions (metric ton/yr) | 11 918.20 | 5 827.90 | 5 805.20 | 5 895.00 | 5 804.9 | 5 827.6 |
Annual fuel consumption (l/yr) | N/A | 610 | 617 | 616 | N/A | N/A |