I'm wondering how ESS batteries with embedded inverters handle AC voltage drop. In the following diagram:
Suppose the grid voltage is 240V, the load is 10kW, and the system wants to supply the load fully from the batteries. To compensate for the 7V voltage drop, should the battery inverter output 247V to ensure 240V at the end of the wiring where it meets the grid, solar and the load? If such compensation is needed, is there an upper limit of voltage drop that particular batteries (e.g. Tesla PW 2 AC, Enphase IO 5P) can handle? Will too much voltage drop cause malfunction of the battery?
Code:
Solar
|| 0kW
0kW +------+ 130ft AWG 8 Wire
Grid ====| 240V |==================================== Batteries(embedded inverters)
+------+ 7V voltage drop <- 10kW 247V?
|| 10kW
|| |
|| \|/
Load
Suppose the grid voltage is 240V, the load is 10kW, and the system wants to supply the load fully from the batteries. To compensate for the 7V voltage drop, should the battery inverter output 247V to ensure 240V at the end of the wiring where it meets the grid, solar and the load? If such compensation is needed, is there an upper limit of voltage drop that particular batteries (e.g. Tesla PW 2 AC, Enphase IO 5P) can handle? Will too much voltage drop cause malfunction of the battery?