Production assessment · 90 days
System performance record
Assessment abstained
—
There is not enough information for a reliable read yet.
This sample has only 18 days of production, and roof direction is unknown. We do not calculate a performance percentage when required inputs are missing.
What would make the read possible
Collect at least 30 days of production, preferably 90, and add the array direction and tilt. Current shading also needs to be assessed.
- Window
- 18 days
- Recorded production · kWh
- 684.2
- Modeled expected · kWh
- —
- Model / weather source
- v0.1.0 / sample
What this result cannot see
The expected value is modeled, not measured. Tree growth and other shading changes can reduce production and are not visible to this method. Soiling and inverter clipping also add uncertainty. This report does not identify a hardware fault or its cause.
Sample comparison window: May 1–July 29, 2026, America/New_York. Irradiance source: demonstration fixture, not a live historical-weather feed. Model: weather-ratio-v0.1.0.