Research Article
Advancing the Adoption of Net Metering: An Economic Assessment of Grid-Tied Solar Photovoltaic Systems in Urban Homes in Ghana
Table 12
Impact of electricity tariff on payback periods under various tariff structures.
| | City | Tariff | Initial | 10% | 20% | 30% | 40% | 50% | 60% | 70% | 80% | 90% | 100% |
| | Accra | BLK | 22.6 | 16.3 | 13.3 | 11.2 | 9.8 | 8.7 | 7.9 | 7.2 | 6.6 | 6.1 | 5.7 | | ToU1 | >25 | >25 | >25 | >25 | >25 | >25 | >25 | 20.3 | 17.2 | 14.7 | 13.1 | | ToU2 | >25 | >25 | >25 | >25 | >25 | >25 | >25 | 19.7 | 16.6 | 14.4 | 12.9 | | ToU3 | >25 | >25 | >25 | >25 | >25 | >25 | 21 | 17.2 | 14.8 | 13 | 11.7 | | ToU4 | >25 | >25 | >25 | >25 | 21.6 | 17.1 | 14.5 | 12.7 | 11.3 | 10.2 | 9.3 | | ToU5 | 17.4 | 13.6 | 11.4 | 9.8 | 8.7 | 7.7 | 7 | 6.4 | 5.9 | 5.5 | 5.2 |
| | Sunyani | BLK | 18.7 | 14.3 | 11.9 | 10.2 | 9 | 8 | 7.3 | 6.7 | 6.2 | 5.7 | 5.3 | | ToU1 | >25 | >25 | >25 | >25 | >25 | >25 | >25 | 20.3 | 17 | 14.7 | 13.1 | | ToU2 | >25 | >25 | >25 | >25 | >25 | >25 | >25 | 20.3 | 17 | 14.7 | 13.1 | | ToU3 | >25 | >25 | >25 | >25 | >25 | >25 | 19.7 | 16.3 | 14.1 | 12.5 | 11.3 | | ToU4 | >25 | >25 | >25 | >25 | 20.4 | 16.4 | 14 | 12.2 | 10.9 | 9.9 | 9.1 | | ToU5 | 15.3 | 12.2 | 10.4 | 9 | 8 | 7.2 | 6.6 | 6 | 5.6 | 5.2 | 4.8 |
| | Navrongo | BLK | 18.7 | 14.3 | 11.9 | 10.2 | 9 | 8 | 7.3 | 6.7 | 6.2 | 5.7 | 5.3 | | ToU1 | >25 | >25 | >25 | >25 | >25 | >25 | >25 | 20.3 | 17 | 14.7 | 13.1 | | ToU2 | >25 | >25 | >25 | >25 | >25 | >25 | 24.8 | 19.3 | 16.3 | 14.2 | 12.7 | | ToU3 | >25 | >25 | >25 | >25 | >25 | 22 | 17.7 | 15 | 13.1 | 11.7 | 10.6 | | ToU4 | >25 | >25 | >25 | 24.3 | 18.4 | 15.2 | 13.1 | 11.5 | 10.4 | 9.4 | 8.7 | | ToU5 | 15.2 | 12.2 | 10.4 | 9 | 8 | 7.2 | 6.6 | 6 | 5.6 | 5.2 | 4.8 |
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