Simulation and solar power chart

Chart

In the example, the light blue section represents the target range where the solar power ideally should be. The dark blue line shows the actual values for the system, illustrating a deviation.

Basic info

Description	The solar power chart compares simulated solar power production with measured values, allowing you to identify inconsistencies between measured power and the target value. You can also visualize yield losses and irradiance.
Prerequisites	The simulation is configured under Calculations > Simulation.

Set up a simulation method for the solar power chart

For the simulation settings, navigate to Calculations > Simulation.

Target range: The percentage (e.g. 10%) is applied to the simulation's target value and represented as a target range on the solar power chart. Data outside of this range is considered a yield loss.

Method: The following methods are used to estimate theoretical production. The method you choose depends on your system setup and preferences:

Method	Description	Prerequisites
Target PR	Default setting. Basic simulation where you can set your expected performance ratio overall or each month as a percentage.	A G_M0 term must be defined. See Terms. Set range at the system level under Calculations > Target PR
Physical simulation	More exact because it uses more parameters	Requires all inverters to be assigned to a subsystem. At least one working irradiance sensor
Machine learning simulation	Machine learning algorithms analyze the historically measured data of the PV system and optimize the physical simulation.	70% or more of the daytime data points are valid At least two weeks’ worth of valid training data within the last 30 days is available You have activated an artificial intelligence simulation.

We recommend selecting a simulation method and target range once and only changing it if you want to compare which options display the best results for your system. When making any changes, be sure to select Save. To view the updated solar power chart, navigate to Evaluation > Solar power chart > Refresh icon. If you change the simulation method, you do not need to perform a recalculation.

Recalculate simulation

If you change a term, for example, an irradiance term, you may need to recalculate the simulation for the solar power chart.

Example: If a sensor malfunctions, you switch to another sensor. This requires you to recalculate the simulation to ensure accuracy.