As more Australians embrace solar power and battery storage, smart energy management is becoming essential. Shelly devices are quickly becoming the go-to solution for homeowners and electricians who want live energy monitoring, automation, solar excess diversion, and local control.
When combined with a Sigenergy (Sigen) inverter system, Shelly products allow you to automate loads, increase self-consumption, and gain deep visibility into exactly how your solar and battery system is performing.
This guide explains how Shelly products work with Sigenergy inverters, how to set them up in an Australian home, and which devices you’ll need for the best results.
What Is Sigenergy?
Sigenergy is a rapidly growing inverter and battery manufacturer used widely in Australia. Their Sigen PV Inverter and Sigen Hybrid Inverter offer:
- Real-time solar generation monitoring
- Battery integration
- Smart load control
- Fast response via the mySigen app
Learn more at the official Australian Sigenergy site:
👉 https://www.sigenergy.com/au/products/pv-inverter
Why Use Shelly With Sigenergy?
Sigenergy inverters provide strong monitoring, but pairing them with Shelly gives you:
✅ Circuit-level monitoring (beyond just inverter data)
✅ Smart load automation using real-time solar values
✅ Local control (automations run even without internet)
✅ Better optimisation of excess solar
✅ The ability to control non-smart appliances directly
This is especially useful for:
- Electric hot water systems
- Pool pumps
- EV chargers
- Air conditioning
- Appliances on timers
Recommended Shelly Devices for Sigenergy Systems
Here are the Shelly devices most commonly used with solar + battery setups in Australia:
🔌 Shelly EM (Energy Monitor)
Ideal for single-phase homes or for monitoring two independent circuits.
Internal product link:
👉 https://www.ozsmartthings.com.au/products/shelly-em
Use cases:
- Measure solar generation on the inverter output
- Measure grid import/export at your switchboard
- Track consumption of a specific appliance
⚡ Shelly 3EM (Three-Phase Energy Monitor)
Perfect for 3-phase homes or large inverter systems.
Internal product link:
👉 https://www.ozsmartthings.com.au/products/shelly-3em
Use cases:
- Whole-home monitoring
- Three-phase inverter output tracking
- Accurate export/import measurement
- Solar + battery status for all phases
🔧 Shelly 1PM or Shelly Plus 1PM / Gen 4 Series
Smart relay modules with built-in power metering.
Internal link (Gen 4 ANZ):
👉 https://www.ozsmartthings.com.au/products/shelly-1pm-gen4
Use cases:
- Automate hot water systems
- Turn loads on when excess solar is available
- Control high-draw appliances
- Create “solar diverter-style” behaviour without buying a diverter
How Shelly Works With Sigenergy Inverters
Shelly does not connect directly to the Sigenergy inverter’s internal data feed.
Instead, it monitors electrical circuits using CT clamps and then uses this data to automate appliances.
This approach has huge advantages:
✔ Works with any-brand solar system
✔ Provides more granular data than inverter apps
✔ Supports Home Assistant, MQTT, Webhooks, REST API
✔ No cloud dependency
Typical Installation Setup in an Australian Home
Here is the most common way electricians install Shelly with Sigenergy:
1. Monitoring Solar Generation
- Place a CT clamp from the Shelly EM or 3EM on the inverter’s AC output.
- This shows how much solar is being produced in real time.
2. Monitoring Grid Import/Export
- Place the second CT clamp on the grid feed.
- This allows Shelly to calculate:
- Net import
- Net export
- Real-time surplus solar
3. Automating Loads with Shelly 1PM
Using the solar data gathered, you can automate loads:
Example automation:
Turn on the hot water system when solar export is greater than 2,000 W for more than 2 minutes.
This can be done using:
- Shelly Smart Control (built-in)
- Home Assistant
- MQTT
- Webhooks
- Node-RED
Best Automations for Sigenergy + Shelly
☀ Solar Excess Hot Water Automation
Maximise self-consumption by heating water only when you’re exporting solar.
🏊 Pool Pump Scheduling Based on Solar
Run pumps only when you have enough generation.
🚗 EV Charging Control
Turn on single-phase chargers only during excess solar periods.
❄ Air Conditioning Load Shifting
Pre-cool or pre-heat your home using solar instead of grid power.
Advantages for Australian Homeowners
Lower Power Bills
More solar energy is used on-site rather than exported.
Avoid Export Limits
If your DNSP limits export (common in QLD), Shelly can help you keep your export below the cap.
Blackout-Ready Automation
Shelly works locally; your automations can run even if:
- Your internet drops
- DNSP cloud monitoring fails
Perfect for Home Assistant Users
Shelly integrates seamlessly — no cloud, no subscription.
Is Shelly Approved for Use in Australia?
Yes — Shelly’s ANZ-certified products (Gen 3 & Gen 4) meet Australian standards and are approved for installation by licensed electricians.
Learn more:
👉 https://kb.shelly.cloud
Conclusion
Pairing Shelly products with Sigenergy inverters is one of the most effective, affordable ways to turn a standard solar system into a fully automated, smart energy ecosystem.
You get:
- Better data
- Better automation
- Better solar utilisation
- Lower power bills
Whether you're running a single-phase or 3-phase Sigenergy system, Shelly offers the perfect tools to make your home smarter and more energy efficient.