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Generac•PWRview

Analysis by Marcus & Team

Generac PWRview: Grid Import Displayed While Solar is Active

Troubleshoot Generac PWRview showing grid import during solar production. Investigate app settings, cloud synchronization, and network configuration.

Frequently Asked Questions

•How do I verify the correct CT polarity in the PWRview app?

In the PWRview app, navigate to the CT configuration settings. The app should provide a visual representation of the CT installation and allow you to confirm the arrow direction is correct. If the readings are inverted, you may need to reverse the CT polarity setting in the app.

•What network ports does the PWRview gateway use for cloud communication?

The PWRview gateway typically uses standard HTTPS ports (443) for secure communication with the Generac cloud servers. It may also use port 123 for NTP (Network Time Protocol) for time synchronization.

•Where can I find the latest firmware updates for my PWRview gateway?

Firmware updates are typically delivered automatically through the PWRview app. You can also check the Generac website or contact their technical support to inquire about the latest firmware version available for your gateway.

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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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Why This Happens:

Incorrect CT configuration in the PWRview app (e.g., CTs assigned to the wrong circuits or polarity reversed).
Delayed data synchronization between the PWRview gateway and the Generac cloud servers.
Firmware bugs in the PWRview gateway leading to misinterpretation of CT data.
Network connectivity issues preventing real-time data updates.
Incorrectly set energy offset values in the PWRview app.
Calibration drift in the internal analog-to-digital converters of the PWRview gateway affecting current readings.

Critical Safety Precautions:

Do not attempt to physically modify or disconnect any wiring related to the solar or grid connections. All configuration changes should be made through the PWRview app or web interface. Ensure your account password is strong and unique to protect system data.

Recommended Action:

1

Verify CT Configuration: Access the PWRview app or web interface and carefully review the CT configuration settings. Ensure that each CT is correctly assigned to the grid, solar, and load circuits. Confirm the CT polarity is correct (arrow pointing towards the load).
2

Force Data Synchronization: Within the PWRview app, attempt to manually force a data synchronization with the Generac cloud. Look for a "Sync Now" or "Refresh Data" option.
3

Reboot the PWRview Gateway: Cycle the power to the PWRview gateway. This can often resolve temporary communication glitches.
4

Check Network Connectivity: Ensure the PWRview gateway has a stable internet connection (Wi-Fi or Ethernet). Test the connection by pinging a reliable external server from a device on the same network.
5

Update Firmware: Check for available firmware updates for the PWRview gateway through the app. Install any pending updates, as these often contain bug fixes and performance improvements.
6

Review Energy Offset Settings: Examine the energy offset settings in the PWRview app. Incorrectly configured offset values can lead to inaccurate grid import/export readings.
7

Contact Generac Support: If the issue persists after performing the above steps, contact Generac technical support for further assistance.

Pro Tip:

Check the Modbus register data directly if you have access to a Modbus testing tool. Examining the raw CT values can help determine if the issue lies with the CTs themselves or with data processing within the PWRview system.

Technical Overview:

The PWRview system relies on current transformers (CTs) to measure current flow on the grid, solar, and load circuits. Data from these CTs are processed by the PWRview gateway and transmitted to the cloud. Discrepancies can arise from CT misconfiguration within the app, data synchronization errors between the gateway and the cloud, incorrect interpretation of Modbus data, or latency in data reporting.

Maintenance Tips:

Regularly check for and install firmware updates for the PWRview gateway.
Periodically review the CT configuration settings in the PWRview app to ensure accuracy.
Monitor network connectivity to the PWRview gateway to ensure reliable data transmission.
Cycle power to the PWRview gateway monthly to prevent lockups.