WELCOME TO PV PERFORMANCE
PV installations are affected by decreasing yields in the first few days-weeks of operation.
This yield reduction occurs due to the light induced degradation (LID) in the PV modules.
In addition, the module performance can continue to decrease by up to 1% per year through various aging processes.
Unfortunately, these degradations are not the only causes for the reduction of the performance or PV systems or solar modules.
Further polarization effects in N-type solar cells/PV modules, as well as Potential Induced Degradation (PID)/High Voltage Stress (HVS), on P-type solar cells/PV modules can significantly reduce module performance and thus the system yields.
Since the PID/HVS degradation is a reversible effect, a regeneration of the affected PV modules is possible and thus an increase of the yield of the PV installation.
With the following tool you can calculate the possible increase in yield in your PV system, based on the measured string voltage and a few details about your PV system.
WHAT IS THE REAL PERFORMANCE POTENTIAL OF YOUR PV INSTALLATION?
Calculation method based on voltage degradation
FURTHER REASONS FOR THE INSTALLATION OF A POWER BOOSTER
INCREASE OF POWER PRODUCTION PERFORMANCE ON HAND OF A CALCULATION EXAMPLE
Calculation sample of a standard roof top PV installation with 28 kWp Power Installed in 2010 in Germany
Installation and Commissioning in 2010
|Feed In Incentive:||39,14 ct/kWp|
|Power production for 2019 per kWp:||920kWh/kWp|
|Total Power Production in 2019:||28kWp*920kWh/kWp= 25.760 kWh|