Table 4 Input data and results for cost analysis
From: Utilization of renewably generated power in the chemical process industry
Chemical process | |||
Power requirement (MW) | 5 | ||
Operating hours (h/a) | 8,000 | ||
Average energy costs (Mio. €/a) [4] | 6.5 | ||
Electricity supply | |||
| Â | Wind turbine | Photovoltaic | |
Capacity per plant (MW) | 2.5 | 5 | |
Full load hours (h/a) [11] | 2,100 | 840 | |
Capital cost, operating costs, and WACC | |||
|  | Capital cost (€/kW) [26] | Capital cost (€/kW) [26] | |
| Â | Lower bound | Upper bound | |
Wind turbines (2 to 3 MW) | 1,000 | 1,800 | |
Photovoltaic (5 MWp) | 1,000 | 1,400 | |
| Â | Nominal WACC (%) [26] | ||
Wind turbines (2 to 3 MW) | 1.8 | 5.9 | |
Photovoltaic (5 MWp) | 24 | 4.8 | |
Results for different sources of electricity supply | |||
| Â | Scenario I | Scenario II | Scenario III |
100% wind power | 100% sun power | 50%/50% mix | |
Installed capacity (MW) | 20 | 50 | 10 (wind turbines) |
25 (photovoltaic) | |||
Σ capital cost (Mio. €) | 20 (lower bound) | 50 (lower bound) | 35 (lower bound) |
36 (upper bound) | 70 (upper bound) | 53 (upper bound) | |
Operation costs (Mio. €/a) | 0.72 | 9.6 | 5.16 |
Payback period (a) | 5.7 (lower bound) | Not within lifetime (> 4.lifetime) | 40 (not within lifetime) |
10.5 (upper bound) | |||