ZAP - Beyond P1 Meters

We've updated the ZAP firmware to support more than just P1 meters. The latest version now also works with inverters and EV chargers, see Compatible Devices.

Firmware

Purchase date

Capabilities

1.2.1

Before November 28

✅ P1 meters

❌ Inverters
❌ EV-chargers

1.6.20+

November 28 and later

✅ P1 meters
✅ Inverters
✅ EV-chargers

• If you bought your ZAP before November 28, 2025 and want to connect a compatible inverter or EV charger, contact us at support@sourceful.energy.

• If you only use the ZAP as a P1 meter reader, no update needed — your ZAP will continue working just fine.

• If you bought your ZAP on or after November 28, 2025, you're already on the latest firmware — no action needed.