Economic analysis model input assumptions
| Cost per panel (HIT technology) | £201·60 |
| Cost per panel (p-Si technology) | £135·00 |
| Discount rate (real) | 3·5% (HM Treasury, 2011) |
| Installation life | 25 years |
| FiT duration | 20 years |
| FiT rate | 9·3 p/kWh |
| Standard electricity tariff rate (day) | 11·7278 p/kWh |
| Inverter replacement (50% of initial cost) | 15 years |
| Operating, maintenance and insurance costs | 1% of initial cost per year |
| PV degradation rate – HIT | 1% per year |
| PV degradation rate – p-Si | 0·6% per year |
| CRC energy efficiency scheme, cost of carbon dioxide emissions | £15·60/t carbon dioxide (Environment Agency, 2014) |
| Cost per panel (HIT technology) | £201·60 |
| Cost per panel (p-Si technology) | £135·00 |
| Discount rate (real) | 3·5% ( |
| Installation life | 25 years |
| FiT duration | 20 years |
| FiT rate | 9·3 p/kWh |
| Standard electricity tariff rate (day) | 11·7278 p/kWh |
| Inverter replacement (50% of initial cost) | 15 years |
| Operating, maintenance and insurance costs | 1% of initial cost per year |
| PV degradation rate – HIT | 1% per year |
| PV degradation rate – p-Si | 0·6% per year |
| CRC energy efficiency scheme, cost of carbon dioxide emissions | £15·60/t carbon dioxide ( |
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