Solar monitoring apps in Perth: which inverter app to use and what to track

Every modern solar inverter installed in Perth comes with a monitoring app. The app is your primary tool for checking whether your system is working correctly, tracking generation over time, and identifying faults early. The specific app depends on your inverter brand.

Which app for which inverter

| Inverter brand | Monitoring app | Platform | |---|---|---| | Fronius | Solar.web | Web + iOS/Android | | Sungrow | iSolarCloud | Web + iOS/Android | | Enphase | MyEnlighten | Web + iOS/Android | | SolarEdge | SolarEdge Monitoring | Web + iOS/Android | | Goodwe | SEMS Portal | Web + iOS/Android | | Growatt | ShinePhone | iOS/Android | | Huawei FusionSolar | FusionSolar | iOS/Android | | BYD (battery) | BYD Connect | iOS/Android |

Most inverter monitoring portals require the inverter to be connected to your home Wi-Fi and registered with the manufacturer's cloud during installation. If your installer didn't set this up, contact them — registration is typically free and essential for warranty support.

What all apps show

Every monitoring app shows at minimum:

Current power output (kW): What the inverter is generating right now. On a clear Perth summer day at noon, a 6.6kW system should be producing close to its rated output (perhaps 5.5–6.2kW accounting for real-world losses). Significantly lower on a sunny day indicates a problem.

Daily total (kWh): How much the system has generated today. A 6.6kW Perth system typically produces 25–35 kWh on a good summer day, 10–18 kWh in winter.

Historical generation: Most apps show weekly, monthly, and yearly generation graphs. This is the baseline you use to spot degradation or faults — compare this month versus the same month last year.

Lifetime total: The total energy produced since installation. Some installers use this to demonstrate system performance at service visits.

What good apps add (brand differences)

Fronius Solar.web: Strong data export — CSV download of 5-minute interval data. Fronius shows string-level data on multi-string systems (where one string of panels connects to each MPPT input). Alerts can be emailed when output drops below a threshold. Solar.web Pro (additional cost) adds more analytics. Common in Perth for Primo and Symo inverters.

Sungrow iSolarCloud: Clean interface. Shows inverter internal temperature, which is useful for monitoring heat-related performance throttling in Perth summers. iSolarCloud also shows fault codes directly in the app when the inverter trips — saves a call to the installer for minor faults.

Enphase MyEnlighten: Per-panel granularity (each microinverter reports individually). Immediately shows which specific panel has dropped in output — invaluable for shading analysis and fault identification. The only app where you can see panel-level performance rather than total system output. More detail than string-inverter apps, but more data to interpret.

SolarEdge Monitoring: Per-panel data via power optimisers (similar concept to Enphase but with a central inverter). Shows module-level power, which makes shade analysis and individual panel degradation visible. Also shows battery state of charge if you have a SolarEdge-compatible battery.

What to track for a Perth system

Weekly (quick check):

• Is today's generation number reasonable for the weather conditions?
• Any fault codes or alert emails since last check?

Monthly:

• Compare this month's total to the same month last year (seasonal variation is normal; a 10%+ decline versus the same month requires investigation)
• Check peak daily output — on the clearest days, is the system still reaching near its rated output?

Annually:

• Battery state of health (SoH) if you have a battery — record the percentage once a year
• Inverter internal temperature extremes in summer (Sungrow users) — if frequently hitting thermal throttle temperatures, check ventilation

Warning signs in your monitoring app

Consistent daily total below expected: If generation is persistently 15–25% below what you expect for current weather conditions, possible causes include: panel shading from new growth, soiling, a failed panel, or an inverter operating at reduced capacity. Start by checking whether the inverter has a fault code.

Inverter not communicating (grayed-out app): The inverter is either offline (Wi-Fi dropped) or not generating (night or overcast). If it's daytime and sunny and the app shows offline, the inverter may have faulted and shut down — check the inverter display for a fault code.

Single panel reporting zero (Enphase or SolarEdge): That panel, microinverter, or optimiser has failed. Report to your installer for a warranty claim.

Generation tracking 10–15% below your installer's estimate: Common in the first year. Installation estimates often use PVWatts or similar tools with standard derate factors. Real-world results vary with exact roof orientation, local shading, and temperature. If you're within 15% of the estimate, the system is likely performing correctly. If you're more than 20% below, ask your installer to check the system.

Setting up alerts

All major apps allow email or push notification alerts for:

• Inverter going offline
• Output dropping below a specified threshold
• Fault codes

Set these up during or soon after installation. An alert that fires when your inverter goes offline at 10am on a sunny weekday is far better than discovering a silent fault when you review last month's electricity bill.

Monitoring app availability and features change with firmware updates. Check your app's current feature list via the manufacturer's support site.