SolarEdge + Zaptec
SolarEdge + Zaptec: solar surplus charging from about 1.4 kW thanks to phase switching, plus dynamic tariffs. Set up in the Zerofy app, no extra hardware.
Download Zerofy Plans and PricingSolar Charging
Automatically charge your EV with surplus solar power from your SolarEdge system. Solar surplus charging made easy.
Dynamic Tariffs
Optimize for electricity prices. Charge or run devices when rates are lowest, and use solar when prices are high.
Cloud Integration
No hardware required. Connect your SolarEdge and Zaptec via cloud APIs in minutes.
SolarEdge + Zaptec: TL;DR
Yes, SolarEdge and Zaptec work together in Zerofy. Zerofy reads your SolarEdge system through SolarEdge Monitoring / mySolarEdge app and controls your Zaptec charger through the Zaptec cloud. With phase switching, solar charging starts from about 1.4 kW of surplus. Smart mode also follows dynamic electricity prices and solar forecasts. No extra hardware needed.
What Zerofy can do with SolarEdge and Zaptec
| Solar data from SolarEdge | Live values and history, new data every 5 min, including the battery |
| Connection to Zaptec | Cloud – your Zaptec account |
| Start and stop charging | Yes |
| Adjust charging current | Yes |
| Switch between 1 and 3 phases | Yes |
| Autopilot: Solar mode | Yes |
| Autopilot: Smart mode (tariffs and forecasts) | Yes |
In practice
- Zerofy can switch your Zaptec charger between one and three phases. Solar charging can therefore start at about 1.4 kW of surplus (6 A on one phase) and move to three phases once the surplus passes about 4.1 kW.
- A typical SolarEdge home system (3–10 kW) reaches the 1.4 kW single-phase minimum on most bright days; three-phase charging from about 4.1 kW needs a sunny midday or a larger system.
- Zerofy gets new SolarEdge data every 5 minutes and adjusts accordingly. A minimum runtime and an activation threshold in Autopilot keep passing clouds from interrupting charging.
- Zerofy also shows your SolarEdge battery, so you can see whether surplus goes into the battery or into the car.
- If your car is connected to Zerofy too, turn on Autopilot for either the car or the charger, not both.
- Ask whoever set up the charger to make you site owner in the Zaptec portal or to grant the permissions; otherwise Zerofy can only switch charging on and off instead of following the surplus. With phase switching the Go 2 starts at about 1.4 kW on one phase; on three phases it needs about 4.1 kW.
What SolarEdge and Zaptec offer on their own
SolarEdge: SolarEdge sells its own EV charger, controlled from the mySolarEdge app. With the SolarEdge ONE Controller (inverter firmware 4.22 or later), mySolarEdge can instead run one third-party OCPP 1.6J charger with Excess Solar charging: MENNEKES AMTRON, Wallbox Pulsar Max/Plus/Pro, Alfen Eve S-line/Pro-line or ABB Terra AC. Only one charger can be used at a time.
Zaptec: Since June 2026 Zaptec offers its own solar charging in the Netherlands, Belgium, Germany, Switzerland and Luxembourg for Go, Go 2 and Pro. It needs a Zaptec Sense (Generic or P1) that detects local production, a Home installation with up to three chargers and a TN grid; the app then offers “Surplus + grid” and “Surplus only”.
Zerofy connects the two: it reads SolarEdge production and controls your Zaptec charger to match, together with your other devices in one app, with dynamic tariffs and forecast-based Smart mode.
Setting up SolarEdge and Zaptec in Zerofy
1. Connect SolarEdge
Zerofy connects to SolarEdge’s monitoring cloud with the same login you use for the SolarEdge Monitoring website or the mySolarEdge app.
- Make sure your SolarEdge inverter is online and your account has the Owner role on the site.
- Add a new SolarEdge device in Zerofy.
- Log in with your SolarEdge Monitoring / mySolarEdge credentials and follow the on-screen prompts.
Good to know: Your account needs the Owner role, which the installer usually assigns to the system owner during setup; ask your installer if you don’t have it. Battery and meter data depend on how your system is configured.
Step-by-step guide for SolarEdge
2. Connect Zaptec
Zerofy connects with your Zaptec portal login and controls charging, current and phases through the Zaptec cloud.
- Make sure your Zaptec charger is online and registered in the Zaptec portal.
- In Zerofy, add a Zaptec charger and enter your Zaptec portal credentials.
Good to know: Only the site owner in the Zaptec portal may change current and phases. Without that permission Zerofy can only start and stop charging, and the app tells you so. Charging sessions only appear in the history after the car has been unplugged.
3. Turn on Autopilot
In Zerofy, open your Zaptec charger, 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 Zaptec charger 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 SolarEdge solar production.
About SolarEdge and Zaptec
SolarEdge – Israeli company (Herzliya) known for inverters with a power optimizer on every module. Homes typically have a SolarEdge Home Wave single-phase or Home Hub three-phase inverter with optimizers, often with a SolarEdge Home Battery and SolarEdge Home smart-energy accessories. Monitoring app: SolarEdge Monitoring / mySolarEdge app.
Zaptec – Zaptec is a Norwegian charger maker. The Zaptec Go 2 is a very compact 22 kW charger with a MID meter, free built-in 4G and automatic switching between one and three phases, and like Easee it also runs on 3×230 V IT grids. Products: Zaptec Go 2, Zaptec Go, Zaptec Pro.
Manufacturer information last checked: October 2026.
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