Greenbyte Documentation

Investment Performance Ratio (Inverter)

Investment Performance Ratio (IPR) measures the performance of assets from a financial perspective, showing how actual production relates to the budget. This lets you know whether the investor's expectations are being met.

Investment Performance Ratio = Actual energy production / Reference energy production.

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
investment_performance_ratio_eq.jpg

where:

IPR

is the Investment Performance Ratio

Eactual

is Energy with Fallback

Ebudget

is Energy Budget Default. Energy Budget Default is the signal that shows the values of the default energy budget defined for the inverter. You can see your default energy budget when you edit your inverter.

Inputs
investment_performance_ratio_in.jpg
Example

In Daily resolution, the IPR is a reflection of the Energy signal.

investment_performance_ratio_ex1.jpeg

In Monthly resolution, IPR can look like this for a site, in combination with a Signal Heatmap widget:

investment_performance_ratio_ex2.jpeg