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A solar system without monitoring is like a bank account without online banking. You have no idea what's happening. This guide compares every major monitoring platform available in Malaysia — SolisCloud, Huawei FusionSolar, Growatt ShineLink, Enphase Enlighten, Solar-Log, and SolarEdge — so you can track your ROI, detect faults before they cost you thousands, and optimise self-consumption to maximise savings.
Malaysia's tropical climate — heavy monsoons, extreme heat, rapid cloud cycles, dust from construction, and bird droppings from urban environments — creates unique challenges that make real-time monitoring essential, not optional.
Without monitoring, a failed inverter or broken string can go unnoticed for weeks. In Malaysia, one fault month can erase RM 400–800 in electricity savings. Monitoring apps send alerts within minutes — often before you'd even notice your bill has changed.
Knowing exactly how much your system generates daily — and comparing it against your TNB bill — lets you calculate the true payback period and catch any discrepancies before they compound. Your 25-year system should be paying for itself every single month.
Under Solar ATAP, grid export earns nothing — self-consumption is everything. Monitoring shows you exactly when your system peaks (typically 10am–2pm in Malaysia) so you can shift high-load appliances (EV charging, water heaters, dishwashers) to solar peak hours.
Your installer's proposal likely promised a specific annual generation figure. Monitoring lets you hold them accountable. If your 10kWp system was promised 14,600 kWh/year but is only producing 11,000, you need to know — and you need data to support a warranty or performance claim.
Good monitoring platforms integrate real-time weather data to separate weather-related dips from actual system faults. If output is low on a monsoon day, that's expected. If it's low on a cloudless sunny day in Kuala Lumpur, that's a problem requiring investigation.
For commercial properties on Bursa Malaysia ESG reporting, factory ISO 50001 energy management systems, or Green Building Index certification, verified solar generation data is required. Monitoring platforms generate audit-ready reports that satisfy regulators and certification bodies.
A 2024 analysis of 847 residential solar systems in the Klang Valley found that unmonitored systems had an average of 23 fault-days per year — resulting in RM 2,400+ in lost savings annually. The most common undetected faults: inverter overtemperature derating (reduces output 15–30% silently), single-string failures from burnt bypass diodes, and gradual insulation degradation from tropical moisture ingress into cable joints.
The 6 major monitoring platforms available to Malaysian solar owners in 2026
by Ginlong Solis
by Huawei
by Growatt
by Enphase
by BKW Energie
by SolarEdge
Detailed feature comparison across all 6 platforms
| Feature | SolisCloud Ginlong Solis | FusionSolar Huawei | ShineServer Growatt | Enphase Enlighten Enphase | Solar-Log BKW Energie | SolarEdge Monitoring SolarEdge |
|---|---|---|---|---|---|---|
Real-time data Live generation, consumption, and grid export data | 5 min | 5 min | 15 min | 15 min | 1 min | 15 min |
Historical charts Daily/monthly/yearly generation charts | 5 yr | 10 yr | 3 yr | 10 yr | Unlimited | 10 yr |
String monitoring Per-string current and voltage tracking | — | — | ||||
Module-level monitoring Per-panel performance data | — | — | — | — | ||
Fault alerts Push notifications for inverter faults | ||||||
Low generation alerts Alert when output drops below threshold | — | |||||
Weather integration Compares actual vs weather-adjusted expected yield | — | |||||
CSV / Excel export Download raw data for billing or audits | ||||||
Multi-site portfolio Manage multiple systems from one account | ||||||
API access REST API for custom integrations | ||||||
MQTT support For IoT and home automation integration | — | — | — | — | ||
Offline / local logging Stores data if internet connection is lost | — | — | — | — | ||
Bahasa Malaysia UI Full BM language interface | — | — | — | — | — | |
Price Cost to use | Free | Free | Free | Free / USD199/yr | RM800–2,500+ | Free |
Every Trexon system includes our unified monitoring dashboard — no extra hardware, no extra fees
Works with Solis, Huawei, Growatt, GoodWe, and more — one dashboard for all your sites
AI-powered fault detection compares your system against 847+ Malaysian installation baselines
Automated PDF reports with generation summary, savings estimate, and performance vs. projection
Fault alerts go directly to your WhatsApp — no need to open another app to check
Overlay your TNB bill against solar generation to verify your actual savings monthly
Automatically flags when performance drops below warranty threshold — with documentation for claims
Step-by-step instructions for each major inverter brand in Malaysia
Plug the Solis WiFi stick (S2-WL-ST) or LAN logger (S2-WL-ST-LAN) into the inverter COM port. Most new Solis inverters (S6 series) have built-in WiFi — no stick needed.
Available on iOS App Store and Google Play. Create an account with your email or phone number.
Tap '+' > 'Add Device'. Scan the QR code on the logger or enter the serial number manually. The app will auto-detect the inverter model.
In the app, go to Device Settings > Network. Enter your WiFi SSID and password. The logger LED will turn solid green when connected.
Go to Settings > Notification > enable 'Device Offline', 'Fault Alarm', and 'Low Generation Alert'. Set the low generation threshold to 50% of your expected daily yield.
Data uploads every 5 minutes. Open the app after 15 minutes — you should see live generation data. If not, check your router 2.4 GHz WiFi band (loggers don't support 5 GHz).
Malaysia-specific tip: Use 2.4 GHz WiFi only
All solar monitoring loggers in Malaysia only support 2.4 GHz WiFi — NOT 5 GHz. If your router broadcasts both (most modern mesh routers do), you may need to connect your logger to the 2.4 GHz band specifically. In your router admin panel, separate the SSIDs (e.g., 'HomeWiFi_2.4' and 'HomeWiFi_5G') so you can select the correct one during logger setup.
The 6 numbers every Malaysian solar owner should track daily
Total energy generated today. Compare against yesterday and same day last month.
Daily yield divided by system capacity — normalises for system size comparison.
Ratio of actual output to theoretically possible output — measures system efficiency.
Energy sent to TNB grid (credited under Solar ATAP) or tracked as self-consumption displacement.
Internal inverter temperature. Critical in Malaysia's 35°C+ ambient temperatures.
Voltage and current from each string of panels. Imbalance between strings indicates faults.
| System Size | Clear Day | Cloudy Day | Monsoon Day | Monthly Avg |
|---|---|---|---|---|
| 5 kWp | 17–22 kWh | 8–13 kWh | 5–9 kWh | 400–500 kWh |
| 10 kWp | 35–45 kWh | 16–26 kWh | 10–18 kWh | 820–1,000 kWh |
| 20 kWp | 70–90 kWh | 32–52 kWh | 20–36 kWh | 1,640–2,000 kWh |
| 50 kWp | 175–225 kWh | 80–130 kWh | 50–90 kWh | 4,100–5,000 kWh |
| 100 kWp | 350–450 kWh | 160–260 kWh | 100–180 kWh | 8,200–10,000 kWh |
Configure these alerts in any monitoring platform to catch faults within 15 minutes
Trigger if offline for >30 minutes during daylight hours (7am–7pm)
Check WiFi connection first. If inverter has fault code, note it before calling installer.
Trigger if daily yield <60% of 30-day average for same month last year
Check if panels need cleaning. Compare with local weather. If clean and sunny, call installer.
Trigger if any string is >15% below other strings of equal length
Indicates shading, soiling, bypass diode failure, or loose MC4 connector. Requires site inspection.
Trigger if inverter temperature >72°C for >30 minutes
Check if inverter is in direct sun, blocked airflow, or mounted on west-facing hot wall. Relocate if needed.
Trigger if grid voltage is outside 207–253V (Malaysia nominal 230V ±10%)
Common in Malaysia — report to TNB (15454) if persistent. Inverter will auto-reconnect when voltage normalises.
Any alert about low insulation resistance or earth fault
DO NOT ignore. Indicates water ingress in cable or panel junction box. Safety hazard. Call installer same day.
Trigger if monthly total is <80% of annual average for that month
Compare with regional irradiance data. If weather was normal but output is low, schedule a maintenance visit.
Tip: Forward push notifications to WhatsApp for instant visibility
Most Malaysians check WhatsApp more reliably than any other app. Use your phone's notification forwarding (iOS: use Shortcuts automation; Android: use Tasker or IFTTT) to forward SolisCloud or FusionSolar alert notifications directly to a WhatsApp message to yourself or your family group. This ensures you'll see fault alerts within minutes, not hours.
For energy managers, auditors, and technical users who need raw data integration
SolisCloud, FusionSolar, and SolarEdge all offer REST APIs for pulling generation data into your own systems. Common use cases in Malaysia: integrating with Power BI for energy management dashboards, feeding data into building management systems (BMS), and automating monthly billing calculations.
Huawei FusionSolar and Solar-Log support MQTT for near-real-time data streaming (1-second intervals possible). Perfect for Home Assistant integrations — display live solar data on wall-mounted dashboards, trigger smart plugs based on solar surplus, or charge batteries when solar exceeds consumption.
Export monthly generation CSV + CO₂ avoided data. Required format: GRI 302-1 (Energy within organisation) and GRI 305-1 (Scope 1 emissions). Solar-Log generates Bursa-compatible PDF automatically.
Export 15-minute interval data in CSV for energy baseline calculation. Trexon provides ISO 50001 pre-formatted data reports for factory customers on the Commercial Plus package.
Green Building Index and BCA Green Mark require verified annual solar generation data. Export annual energy reports from any major platform — FusionSolar, SolarEdge, or Solar-Log all produce suitable documentation.
Everything Malaysian solar owners ask about monitoring systems
Every Trexon installation includes real-time monitoring, monthly performance reports, and 24/7 alert coverage — at no extra cost. Know what your system is doing, every single day.