Clear Sky Performance Index
A powerful analysis of the yield of your solar panels
Fast degradation detection
The CSPI is a unique, accurate and fast method to detect degradation.
Shadow has no chance
Our algorithm is insensitive to shadow during a period of the day.
Only with existing data
Irradiation data is no requirement for the CSPI to work.
How it works
Discover the power behind the Clear Sky Performance Index
- During a “Clear Sky” moment, the installation will produce the maximum possible on that day, time, orientation, tilt and with the known watt peak
- The CSPI algorithm automatically detects Clear Sky moments. Only the measured 15 minutes kWh values are used
- The CSPI is an index that should be around 1 for all installations. Lower values or a downward trend are indications of a problem
- The CSPI is a self-learning algorithm: the older the installation, the better the results. It is also ideal for the automatic assessment of many small installations
- The algorithm will correct incorrectly set orientations
Get a free demo
Would you like to be informed about our approach? Take a look at the SIMPL monitoring portal and discuss the needs for your company.