Free Online Efficiency-Based PR Calculator
Efficiency-Based Performance Ratio (PR) evaluates how efficiently a solar plant converts available solar energy into usable electricity, accounting for solar panel rated specifications and plant area.
- Energy (kWh): Input the total energy your solar system generated over a selected time period.
- Insolation (kWh/m²): The measured plane-of-array insolation (sunlight received) in kWh/m² during the same time period.
- Plant Area (m²): Enter the total area covered by the installed PV modules.
- Module Efficiency (%): Enter the nameplate (rated) efficiency of your solar modules.
After entering the required inputs, click the Submit button to calculate the Performance Ratio. Use the Reset button to clear all fields and start over.
This calculator evaluates how efficiently your solar system converts available solar energy into electricity, relative to its nominal energy output potential derived from module efficiency and irradiance conditions.