superczar
Keymaster
3 phase since my existing supply is 3 phase but you can get up to 5 or 6kw approved for single phase supply also.More questions for you,
1. When did you get your solar setup?
2. Do you have a single phase or 3 phase connection?
3. What have you done to deal with the power outages?
as for power outages and backup, thats a completely different problem set which is totally unrelated to a solar setup.
an on-grid solar setup anyway shuts down when there is a power outage .
The solar inverter output links up to the mains supply before your house MCB so whatever existing backup setup you have (eg DG in my case but could very well be an inverter elsewhere) will continue to work as is