Prevention
The Prevention tab provides a performance overview of all installations, helping operations teams detect underperformance before it becomes a critical issue.
It helps to:
- Identify installations with low performance that may require attention.
- Compare estimated vs. actual production over a rolling 30-day window.
- Track performance trends through variation indicators.
How performance is calculated
Each installation is evaluated against its expected production. Performance is expressed as a percentage and represents the ratio between actual and estimated production over a rolling 30-day period.
- Estimated production is the expected output for the installation based on its technical characteristics and location, calculated using solar irradiance data for the installation's geographic coordinates.
- Actual production is the real energy output reported by the inverter manufacturer's monitoring system over the same 30-day window.
- Variation is the change in performance compared to the previous 30-day period, shown as a percentage.
This comparison provides a normalized view of performance that accounts for seasonal and geographic differences across installations.
How to use the prevention tab
- Review the list regularly, ideally on a weekly basis.
- Start with installations in the less than 70% category, as they are the most likely to have an actionable issue.
- Compare estimated vs. actual production to understand the magnitude of the underperformance.
- Check the variation column to identify whether performance is declining, stable, or recovering.
- Use the plant code to cross-reference the installation in the manufacturer's monitoring platform for further diagnostics.
- For newly installed systems, consider that a short production history may result in less reliable performance values.