If you don’t consider the 100% depth of discharge, it seems a bit spendy. I can get inverters for about 20 cents per watt. Batts for 15 cents per watt hour.
If I was going to build a 14 kWh/5500 kW inverter setup, I think I could do it for $3200 but as Bill pointed out, I will ruin my batts if I do 100% DOD more than just a few times. From: Peter Kranz Sent: Monday, October 31, 2016 12:14 PM To: [email protected] Subject: [AFMUG] Tesla powerwall 2 The new tesla powerwall 2 appears to be an interesting UPS option now that it has a build in inverter/charger. 14kWh for $5500, so would run most of my sites for about 24 hours. When I backed out the costs for 14kWh of our standard AGM cells and inverter, I think this price is quite reasonable. https://www.tesla.com/powerwall Peter Kranz www.UnwiredLtd.com Desk: 510-868-1614 x100 Mobile: 510-207-0000 [email protected]
