- Charging station operating scenario: The charging volume per charger is assumed to be 130 kWh/day starting from the first year, operating steadily for 350 days per year. A conservative estimate assumes the charging volume increases by 10% annually. The charging service fee is 0.4 RMB/kWh. No future increase in service fees is considered.
- Estimated total charging volume in the first year: 20 × 130 kWh/day × 350 days = 910,000 kWh
- First-year usage fee of a certain charging brand platform: 910,000 kWh × 0.03 RMB (0.03 RMB/kWh usage fee) = 27,300 RMB
- Subscription fee for the UltimateBox EV Charging Platform : 20 × 398 RMB = 7,960 RMB











