Greenbyte Documentation

Operating Performance Ratio (Inverter)

Operating Performance Ratio (OPR) measures performance of the inverter, given actual weather conditions. It can indicate that the operator could have done something better during the period.

Operating Performance Ratio = Investment Performance Ratio / Resource Index

Important

For IPR/OPR/Resource index/Weather-adjusted budget to work, the following need to be configured:

  1. Reference pyranometers with data on each inverter OR any pyranometer on the site with data OR the Solargis add-on

  2. Irradiation forecast on each inverter.

  3. Default Energy budget on each inverter.

Technology

Solar: Inverter

Equation
operating_performance_ratio_eq.jpg

where:

OPR

is the Operating Performance Ratio

IPR

is the Investment Performance Ratio

RI

is the Resource Index

Inputs
operating_performance_ratio_in.jpg
Example

Operating Performance Ratio shown in a widget with Investment Performance Ratio and Resource Index for a single inverter over 24 hours, with values in hourly resolution.

operating_performance_ratio_ex.png