Works with

Wonder Watt connects your home battery to the things that decide what it should do: your inverter, your energy supplier’s tariff, and the grid. Everything below works through each company’s own cloud service, so there’s no extra hardware to buy and no Home Assistant to run.

Inverters

Seven hybrid inverter brands, connected through each manufacturer's cloud. If your system already reports to the manufacturer's app, Wonder Watt can work with it. See what works with each brand.

Growatt SPH, SPM, MIN and MOD hybrids, AC coupled systems included GivEnergy All in One, Gen 1 to Gen 3 hybrids, AC and DC coupled Solax X1 and X3 Hybrid Gen4, through your Solax account or Developer Portal app AlphaESS SMILE-G3, SMILE-B3 and Storion-T Solis Hybrid inverters through SolisCloud FoxESS Hybrid systems through the FoxESS Cloud open API Sunsynk Hybrid inverters through your Sunsynk Connect account

Energy suppliers and tariffs

Charging, holding and exporting around what your electricity actually costs. On Octopus and EDF, Wonder Batt can read your tariff straight from your account and keep it up to date if you switch.

Octopus Energy Agile, Intelligent Octopus Go, Go, Flux and Cosy, with Agile Outgoing, Flux and Prime export. Connect your Octopus account and Wonder Batt keeps your tariff up to date. EDF Wonder Batt beta FreePhase Dynamic, FreePhase Static and GoElectric, including its Smart Charging slots. Connect your EDF account and your tariff stays up to date. E.ON Next Wonder Batt beta Next Drive, ready to pick from the tariff list. British Gas Wonder Batt beta Electric Driver, ready to pick from the tariff list. Any other tariff Any other tariff Flat rate, Economy 7 or any time of use tariff. Enter your own rates and times.

Grid services

Get paid when the grid needs your battery, without your other automation getting in the way.

Axle Energy Earn from grid export events. Wonder Watt exports automatically when an event starts, and everything else stands aside.

Missing something?

Tell us which inverter, supplier or service you’d like next in the community forums. New integrations depend on the company offering a cloud API that lets a third party send instructions, and demand shapes what we build next.

Brand names and logos belong to their owners and are used only to show compatibility. Wonder Watt is an independent service and is not affiliated with or endorsed by any inverter manufacturer, energy supplier or Axle Energy.