Fronius + Sensibo

What Zerofy can do with Fronius and Sensibo

In practice

• Autopilot switches the air conditioner on when there’s surplus; the unit’s own setpoint logic still decides when it heats or cools.
• Zerofy gets new Fronius data every 5 minutes and adjusts accordingly. A minimum runtime and an activation threshold in Autopilot keep passing clouds from interrupting the device.
• Zerofy also shows your Fronius battery, so you can see whether surplus goes into the battery or into the air conditioner.
• The API key gives Zerofy access to your Sensibo account: keep it in place, because deleting or regenerating it at home.sensibo.com/me/api cuts the connection until you enter a new key in Zerofy.

What Fronius and Sensibo offer on their own

Fronius: The Fronius Ohmpilot feeds surplus into a heating rod (0.3–3 kW single-phase, 0.9–9 kW three-phase) and has a control output for a heat pump with an SG Ready input. GEN24 inverters can also switch an SG Ready input through one of their four digital outputs plus a coupling relay, and Fronius lists direct integrations with heat pumps from IDM, Bosch and NIBE.

Sensibo: The Sensibo app automates by schedules, geofencing and “Climate React” (reacting to room temperature and humidity) and added kWh and cost tracking in October 2026. Sensibo does not advertise a mode that follows PV surplus automatically; Enphase sells Sensibo controllers, but the pairing means manually matching AC use to the production shown in the Enphase app.

Zerofy connects the two: it reads Fronius production and controls your Sensibo-controlled air conditioner to match, together with your other devices in one app, with dynamic tariffs and forecast-based Smart mode.

Setting up Fronius and Sensibo in Zerofy

1. Connect Fronius

Zerofy reads your system from Fronius Solar.web through a guest account that you create for Zerofy.

1. Make sure your Fronius inverter is online and shows up in Solar.web.
2. In Solar.web, go to Settings → Permissions and create a new guest account.
3. Add Fronius in Zerofy and log in with the guest account credentials.

Step-by-step guide for Fronius

2. Connect Sensibo

Zerofy connects to your Sensibo account with an API key; it can switch the air conditioner on and off, set the target temperature and let Autopilot run it on solar surplus or in Smart mode.

1. Set up the Sensibo device in the Sensibo app.
2. Create an API key at home.sensibo.com/me/api.
3. In Zerofy, add Sensibo and paste the API key.

Step-by-step guide for Sensibo

3. Turn on Autopilot

In Zerofy, open your Sensibo-controlled air conditioner, turn on Autopilot and choose Solar – or Smart to also use dynamic tariffs and forecasts. Set the priority, activation threshold and minimum runtime.

Dynamic tariffs

Zerofy can also run your Sensibo-controlled air conditioner on dynamic electricity prices (EPEX Spot or Nord Pool, e.g. Tibber or aWATTar) or on a fixed time-of-use tariff. Smart mode combines those prices with forecasts of your household consumption and your Fronius solar production.

Learn more about Smart Mode

About Fronius and Sensibo

Fronius – Austrian manufacturer of inverters, welding and battery-charging technology. Homeowners typically have a Primo GEN24 (single-phase, 3–6 kW) or Symo GEN24 (three-phase, 3–10 kW) hybrid inverter, older Primo/Symo SnapINverters, and the Fronius Reserva battery (6.3–15.8 kWh). Monitoring app: Fronius Solar.web.

Sensibo – Sensibo was founded in Tel Aviv, Israel, in 2013. Its controllers (Sky, Air, Air PRO) make existing air conditioners, mini-splits and air-to-air heat pumps smart by sending the same infrared commands as the original remote. Products: Sensibo Sky, Sensibo Air, Sensibo Air PRO (plus Room Sensor and Elements/Pure air-quality devices).

Manufacturer information last checked: October 2026.

All devices that work with Fronius