risingtiger
New Member
- Joined
- Mar 23, 2021
- Messages
- 2
Which is better: running 48vdc or 110ac from solar/battery shed to multiple points of load?
I will have the solar/battery unit about 100 feet from the house and about 75 feet from an Airbnb unit. Both locations will be primarily drawing AC power, but also some DC: I’m assuming about a 80%/20% split. The home will likely need roughly 2-3KW and the Airbnb would likely need about 1K.
It annoys me that, if I supply 110VAC to the units, I would be running through an extra DC->AC->DC hop for 20% of the load. But, then again, I would still have to convert 48VDC to 24/12VDC for final use anyways, so it might be a illogical concern.
Is it standard practice for solar system designers to run one inverter at the batteries so that power is traveling as AC to multiple units (over less expensive wire)? Or is there an argument to run 48VDC to the units (over more expensive wire) and have an inverter at each unit?
I will have the solar/battery unit about 100 feet from the house and about 75 feet from an Airbnb unit. Both locations will be primarily drawing AC power, but also some DC: I’m assuming about a 80%/20% split. The home will likely need roughly 2-3KW and the Airbnb would likely need about 1K.
It annoys me that, if I supply 110VAC to the units, I would be running through an extra DC->AC->DC hop for 20% of the load. But, then again, I would still have to convert 48VDC to 24/12VDC for final use anyways, so it might be a illogical concern.
Is it standard practice for solar system designers to run one inverter at the batteries so that power is traveling as AC to multiple units (over less expensive wire)? Or is there an argument to run 48VDC to the units (over more expensive wire) and have an inverter at each unit?