I need to obtain some information regarding purchasing a Tesla Powerwall 2 for use with a solar system and a utility grid that is 50Hz. The system I am building will be principally for self-consumption, with a reserve for backup in the event of a utility outage or overnight usage. The system would not be grid tied but would draw energy from the utility grid to supplement the battery output, if necessary, and to charge the battery if solar energy is not available. There has been some information on the net that says the AC Powerwall 2 cannot charge the battery from the solar system if the grid is down. I do not know if that is true or not but that would be a deal breaker. If the Powerwall 2 uses frequency shifting to change its input sources, could its programming be changed to base its frequency shifting on 50Hz (eg. 50.4 Hz versus 60.4 Hz). I have tried to get information from Tesla but they require a deposit before one can have access to someone with technical information.
Since the information I need will inform the purchasing decision, I need a credible source with sound technical knowledge and experience. If someone is knowledgeable regarding this issue, or knows where I might be able to obtain the necessary information, I would be grateful for the assistance.
Since the information I need will inform the purchasing decision, I need a credible source with sound technical knowledge and experience. If someone is knowledgeable regarding this issue, or knows where I might be able to obtain the necessary information, I would be grateful for the assistance.