The SolarEdge Home Battery goes onto SolarEdge solar, whether an existing Home Hub system or a new build like one Colorado DIYer's, and owners in high-rate or demand-charge territory such as Arizona's APS or California's PG&E use it to shift solar into the evening peak. Where it is installed well it does that job: a Phoenix owner on a demand-charge plan reports steep bill cuts by charging in the morning and covering the 4-7pm window, and utility incentive programs such as Xcel's in Colorado treat it alongside Powerwall.
Many complaints concern what the battery does when it is not working hard. Several 2023 owners found it losing charge while idle at reserve; SolarEdge told one that a 15% overnight drop was normal, another's app showed a constant 20W night draw that by the owner's own math explained only about 2% of the loss, and two other owners see just 1-3% a night. Backup depends on the Backup Interface and the inverter being wired correctly, and two owners have seen it fail to engage, one of them in real outages. Issues go through the installer to SolarEdge, which, by one account, is poor at troubleshooting anything off its script, and older non-Hub inverters need replacing before any of this works.
Existing SolarEdge Home Hub owners get storage without a second inverter at a mid-pack installed price, typically $7,000-15,000. Owners with older SolarEdge inverters are pointed to AC-coupling a Powerwall or FranklinWH, which keeps the old inverter, while one installer wary of SolarEdge tells clients they will be happier with Enphase microinverters.