EPI/Energy performance index chart

Last modified: 2026-06-18

Chart

View the chart at System level in the Evaluation tab in the Section: System KPIs.

Basic info

Description	The EPI/Energy performance index is the ratio between a system’s actual normalized AC energy and the expected normalized AC energy. Ideally, the value should be as close to 100% as possible. Expected normalized energy is calculated based on the selected simulation method.
Prerequisites	Simulation method for the expected power/energy is configured. See also Configure the simulation.
Further details	None

Description

The EPI/Energy performance index is the ratio between a system’s actual normalized AC energy and the expected normalized AC energy. Ideally, the value should be as close to 100% as possible.

Expected normalized energy is calculated based on the selected simulation method.

Prerequisites

Simulation method for the expected power/energy is configured. See also Configure the simulation.

Further details

None

Note

Find further information on the general functions within charts under Evaluations & charts.