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Generac•PWRview

Analysis by Marcus & Team

Generac PWRview: App Shows Incorrect Power Scaling

Troubleshoot Generac PWRview app scaling issues. Resolve incorrect power readings with network checks, firmware updates, and app settings adjustments.

Frequently Asked Questions

•Is the PWRview system connected to the internet via Wi-Fi or Ethernet?

This determines initial network troubleshooting steps.

•When did the incorrect scaling issue first appear?

This helps identify potential correlations with system updates or configuration changes.

•Are there any other unusual readings or error messages displayed in the PWRview app?

Additional symptoms may provide clues to the underlying cause.

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Marcus leads the technical research department at Storage Faults. Together with a team of systems analysts, he specializes in translating complex solar storage error codes into actionable diagnostic steps for the US market.

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Technical Background:

The PWRview system relies on data transmitted from the energy management system (EMS) to the cloud server via Wi-Fi or Ethernet. This data includes real-time power measurements (kW), voltage (V), current (A), and energy consumption (kWh). The cloud server then processes and transmits this data to the PWRview mobile application. Incorrect scaling can arise from issues in data acquisition, transmission, cloud processing, or application display logic. The EMS calculates power based on voltage and current measurements from sensors at the grid connection, solar inverter, and battery inverter. Signal integrity issues, particularly noise or interference, during data conversion to digital format may result in corrupted values.

Observed Symptoms:

The Generac PWRview mobile application displays an incorrect power axis scale, leading to inaccurate readings of energy production, consumption, or battery state of charge. This may manifest as values exceeding expected ranges, flattened curves, or generally skewed data representation.

Safety Warning:

Ensure that all configuration changes are performed by authorized personnel, or under the guidance of Generac support. Incorrect configuration could affect system performance and safety. Protect your PWRview account with a strong, unique password and enable two-factor authentication if available. Do not share your login credentials with unauthorized individuals.

Solution:

1

Verify the Wi-Fi or Ethernet connection strength and stability using the PWRview app's network diagnostics tool (if available) or a separate network testing application on your mobile device. Restart the home Wi-Fi router.
2

Check for PWRview app updates in the app store (iOS or Android) and install the latest version.
3

Power cycle the Generac PWRcell system by first engaging the DC disconnect switch, waiting 5 minutes, then engaging the AC disconnect switch, waiting 5 minutes, and then re-engaging the AC and DC disconnects in reverse order. Observe the PWRview app after the system restarts and reconnects to the network. This will reset the EMS.
4

Review the PWRview app settings for any user-configurable scaling options or system parameters. Ensure that the system capacity and other relevant settings are configured correctly.
5

Check the Generac website for firmware updates for both the PWRview gateway and the inverters. Follow the instructions to perform over-the-air (OTA) firmware updates. Note: Proper network connectivity is crucial for OTA firmware updates.
6

If the issue persists, clear the PWRview app's cache and data in the device's application settings, then restart the app. You may need to re-enter your login credentials.
7

If the previous steps fail, contact Generac customer support for further assistance. Provide detailed information about the issue, including screenshots of the incorrect scaling and any relevant error messages.

Pro Tip:

Check the PWRview web portal (if available) through a web browser on a computer. Compare the data displayed on the web portal with the data displayed on the mobile app. If the web portal shows correct scaling, the issue is likely related to the mobile app itself.

Common Causes:

Inaccurate sensor calibration within the EMS leading to erroneous voltage or current readings.
Wi-Fi or Ethernet connectivity problems causing data packet loss or corruption during transmission to the cloud.
Software bugs or glitches within the PWRview mobile application affecting data interpretation and display.
Incorrect configuration settings within the PWRview app related to system capacity or scaling factors.
Firmware incompatibility between the EMS and the PWRview application.
Cloud server issues affecting data processing or storage.

Maintenance Tips:

Regularly check for and install firmware updates for the PWRview gateway and inverters to ensure compatibility and optimal performance.
Periodically review and confirm the accuracy of system configuration settings within the PWRview app.
Monitor network connectivity to ensure a stable and reliable connection between the EMS, the cloud, and the mobile application.
Check the Generac website for any known issues or alerts related to the PWRview system.