SunRun installed a 9.2kW rooftop (7.6kW inverter) system for $42K. They will upsell name-brand battery banks for serious coin. I'm inclined to move kitchen, laundry and Home AC system breakers into a separate breaker box along with 100a breaker (half of the home 200a service). My goal would be to have failover for the key home systems/areas but not the whole home. The 100a service would come through the 100a breaker, to an inverter/charger (with 48v DC battery bank attached) and then to the three home systems areas.
Has anybody considered such a set up? I have a 24v Inverter/charger (Aims 6000watt continuous/18000 surge) to serve two 50amp hot legs. Do I need a second inverter or just get a LARGER inverter/charger? My battery bank would be 24v (three 24v packs of 8, 304ah cells from 304ah EVE lifepo4 cells, bms, balancers and hardware) in a sealable shelf configuration similar to the 'Off Grid Garage' fella (he has 48v) for about 22kW battery backup. The inverter/charger has ATS. I would save close to $5K DIY and in the footprint of ONE 7Kw Tesla Powerwall.
Thoughts? I've not fully designed my solution but I have similar DIY on my bus (15.5kW - 24v, 600ah pack).
Has anybody considered such a set up? I have a 24v Inverter/charger (Aims 6000watt continuous/18000 surge) to serve two 50amp hot legs. Do I need a second inverter or just get a LARGER inverter/charger? My battery bank would be 24v (three 24v packs of 8, 304ah cells from 304ah EVE lifepo4 cells, bms, balancers and hardware) in a sealable shelf configuration similar to the 'Off Grid Garage' fella (he has 48v) for about 22kW battery backup. The inverter/charger has ATS. I would save close to $5K DIY and in the footprint of ONE 7Kw Tesla Powerwall.
Thoughts? I've not fully designed my solution but I have similar DIY on my bus (15.5kW - 24v, 600ah pack).