The design calculation load is 6Kw per household. In actual use, the load used by each household at the same time rarely exceeds 1/2, which is the load utilization rate. Furthermore, it is impossible for 360 households to use electricity at the same time. This is the simultaneous rate. Generally, the electricity load rate for urban residents is 0.5. The simultaneous rate is 0.6~0.8. In summary: 360X6=2160X0.5X0.8=864KVA .. You can choose from 630KVA to 800KVA, and it is recommended that each household install a meter.