Enphase inverter
📋 Overview
Enphase uses micro-inverters in combination with an Envoy gateway as a central communication point. The Currentt Navigator can read solar energy production via the Envoy gateway, provided it supports Modbus TCP. Only the Envoy-S Metered and IQ Gateway Metered models support Modbus TCP.
Unlike string inverters (such as Huawei or SolarEdge), the Currentt Navigator does not communicate directly with the micro-inverters, but with the Envoy gateway. Modbus TCP must be enabled remotely by Enphase. Not all Envoy models support this.
⚙️ How does it work?
The Enphase micro-inverters report their production data to the Envoy gateway. The Currentt Navigator then reads the total production data via Modbus TCP on the Envoy gateway.
🔌 Connection
Option 1: Modbus TCP via Envoy gateway (direct connection)
A connection via the local network between the Envoy gateway and the Currentt Navigator. Modbus TCP must be enabled remotely by Enphase Support.
| Property | Value |
|---|---|
| Speed | Real-time (polling every 1-5 seconds) |
| Connection | Ethernet (LAN) |
| Internet required | No (after activation) |
| Suitable for control | No — read-only |
| Supported models | Envoy-S Metered, IQ Gateway Metered, IQ Gateway Commercial |
Modbus TCP is disabled by default on the Envoy gateway and can only be enabled by Enphase Support remotely. Contact Enphase Support and request activation of Modbus TCP on the gateway.
Option 2: External meter (alternative method)
If Modbus TCP is not available (e.g. with an unsupported Envoy model), solar energy production can be measured with an external energy meter (CT clamp or Modbus meter) connected to the solar panel circuit. The meter is configured in the Currentt Navigator and linked to an inverter named "Enphase" via manual configuration.
| Property | Value |
|---|---|
| Speed | Real-time (polling every 1-5 seconds) |
| Connection | Depends on meter (CT clamps or Modbus meter) |
| Internet required | No |
| Suitable for control | No — read-only |
This method works with all Enphase systems, regardless of the Envoy model. It does require the installation of an additional energy meter.
⚖️ Comparison
| Modbus TCP (Envoy) | External meter | |
|---|---|---|
| Data latency | < 1 sec | < 1 sec |
| Polling interval | 1-5 sec | 1-5 sec |
| Internet required | No (after activation) | No |
| Additional hardware | No | Yes (energy meter) |
| Envoy model | Metered models only | All models |
| Activation by Enphase | Yes (by phone) | No |
| Suitable for control | No | No |
| Setup complexity | Medium | Medium |
✅ Compatible Envoy gateways
Modbus TCP support
| Model | Modbus TCP | External meter |
|---|---|---|
| Envoy-S Standard | No | Yes (required) |
| Envoy-S Metered | Yes (activation required) | Only if no Modbus TCP |
| IQ Gateway | No | Yes (required) |
| IQ Gateway Metered | Yes (activation required) | Only if no Modbus TCP |
| IQ Gateway Commercial | Yes (activation required) | Only if no Modbus TCP |
Note: Modbus TCP must always be enabled remotely by Enphase Support, even for supported models. This can take up to 10 business days.