Mathematical Problems in Engineering / 2021 / Article / Tab 5 / Research Article
Grid Impact Assessment of Centralized and Decentralized Photovoltaic-Based Distribution Generation: A Case Study of Power Distribution Network with High Renewable Energy Penetration Table 5 Cost and system assumptions.
Variable Quantity Unit Electricity selling price (both cases) 0.10 $/kWh Operation and maintenance (O & M; both cases) 25 $/kW/year Civil works (centralized PV system) $76,412.64 $ Maintenance engineers (both cases) 1,000 $/month Inflation rate (both cases) 3% — Minimum attractive rate of return (both cases) 12% — Tax rate (both cases) 10% — Price of PV system (rooftop) 700 $/kW Price of PV system (land) 850 $/kW Plant power substation (centralized PV system) $45,847.58 $ Yield factor of PV system 1750 kWh/kW/year Roof rent 6 $/m2 /year Land $42,313.65 $/dunam Degradation 0.8 %/year Salvage value 0 $ Operational period 20 Year