Let's say I have a grid tied sol-ark 15K with 30kwh of 48v batteries.
If there is a long term grid outage, what is the best way to economically have a backup solar charger/inverter on hand? Another 15K would be great, and maybe that will happen along with 2 or 3 more strings of panels in the future, but in the mean time, is there any way to realistically swap in a lesser solar charger/inverter (doesn't need to be 15K - ~5K would be a LOT better than nothing to keep some lights, fridge/freezer, starlink going). I know I'd have to jury rig some of the connections in that situation. Turn off the exterior AC disconnect, hook up the backup to the bus bars on the batteries, and move a string or two of panels to the backup, and backfeed a breaker on my critical load panel from the backup inverter load output.
I would want to hook it all up once to test it and make sure I have everything needed to hook it all up, and then hopefully never have to use it again. Having to spend a few hours to switch over would be fine.
Any thoughts?
If there is a long term grid outage, what is the best way to economically have a backup solar charger/inverter on hand? Another 15K would be great, and maybe that will happen along with 2 or 3 more strings of panels in the future, but in the mean time, is there any way to realistically swap in a lesser solar charger/inverter (doesn't need to be 15K - ~5K would be a LOT better than nothing to keep some lights, fridge/freezer, starlink going). I know I'd have to jury rig some of the connections in that situation. Turn off the exterior AC disconnect, hook up the backup to the bus bars on the batteries, and move a string or two of panels to the backup, and backfeed a breaker on my critical load panel from the backup inverter load output.
I would want to hook it all up once to test it and make sure I have everything needed to hook it all up, and then hopefully never have to use it again. Having to spend a few hours to switch over would be fine.
Any thoughts?