In the spring and autumn seasons (Fig. 8), the optimal energy storage system configuration is a battery capacity of 1578.57 kWh, hydrogen storage capacity of 4176.08 kg, EL capacity of 1196.22 kW, and fuel cell capacity of 606.85 kW. The system cost is 3700889.06￥, with a power supply reliability of 99.22 %.
The most important part of designing any off-grid solar or battery system is calculating the daily energy requirement in kWh. For grid-connected sites, detailed load data can often be obtained directly from your electricity retailer or by using meters to measure the loads directly.
The energy storage system configuration for winter is a battery capacity of 1859.97 kWh, hydrogen storage capacity of 4341.12 kg, EL capacity of 1606.42 kW, and fuel cell capacity of 601.68 kW. The system cost is 3.39 million ￥, with a power supply reliability of 99.78 %.
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