Hi Folks, About to spec my first Lithium battery backup job. The client is not a heavy user, but wants things done right more than being totally cost effective. We put in 14kW of net metered solar using SolarEdge and now he wants the backup component. This was significantly oversized for his use, but he wanted to be sure he was putting a bunch more back into the grid than he was using (making up for past profligate power usage). We will be using a dual stacked XW 6848, mostly for enough backfeed capacity (we could wire in a transfer switch and only use 1 XW, but he'd prefer this setup instead). I have narrowed down my choice for batteries to either:
- (2) Iron Edison 200 amp hour batteries, or - (3) Discover AES 130 amp hour batteries Advantages for the AES are that they integrate directly with the Schneider Xanbus network so the Conext battery monitor provides direct insight into the SOC and SOH of the batteries, and they have a slightly higher rated cycle life so higher lifetime energy capacity. Advantages of the IronEdison are they come in a larger amp hour size allowing for only needing 2 vs. 3 batteries, they have an integrated fuse and disconnect, and from my sources are 1/3 less in price. If anyone has any thoughts on any of this, or corrections to my comparison, I'd greatly appreciate it.
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