Bug Fix: Virtual Production Meter Sunrise Spike

Release Date: March 2026
Type: Bug fix

What's Fixed

Virtual production meter lifetime value spike at sunrise

At sunrise, PVS inverters do not all come online at the same time. They report in to the PVS one by one over several poll cycles. The virtual production meter sums lifetime kWh from all inverters, so the first few polls after sunrise produced a partial sum much lower than the actual lifetime total. When the remaining inverters finally reported in, the meter appeared to jump by a large amount all at once.

For anyone using the virtual production meter as the source for a utility meter helper, this caused the utility meter to record a massive daily production spike on most mornings, requiring manual SQLite cleanup to fix.

The integration now fills in any missing inverters from the last cached data on every poll. Missing inverters contribute their last known lifetime kWh value while their real-time power output is shown as zero. As each inverter comes online during sunrise, its fresh data replaces the cached placeholder. The virtual meter sum stays stable through the entire startup sequence.

Who Is Affected

Users who:

• Have no physical production meter (virtual meter is used instead)
• Use the virtual production meter sensor as the source for a utility meter helper in Home Assistant

Users with a physical production meter are not affected by this change.

Upgrade Notes

• Standard HACS update or manual file copy, restart Home Assistant
• No configuration changes required
• Update during daylight hours recommended so you can verify sensors populate correctly after restart