Result per inverter (CSV)

[icicle]

Is there a way for me to view the result of a simulation per inverter stated in the System? For instance, the project has three inverters. I want to see the simulation result for each inverter that I placed in the csv file (time series data). Thank you.

Edited August 19 by icicle

[Linda Thoren]

Hello,
At the moment, PVsyst only provides yield and performance results for the complete system as a whole. Viewing results per inverter is not yet available (though it is on our roadmap). If you need results for each inverter separately, the current workaround is to simulate each inverter as its own variant.

[icicle]

For your suggested workaround, how can I do that in PVsyst 7?

 

[Linda Thoren]

In a project you can create multiple variants (both in version 7 and 8). Since the results will be for the complete system, you have to define your sub-system (for instance one inverter at the time) in separate variants. Thus, in the system window etc., define only 1 inverter and run the simulation. You can then make another variant of your project with the second inverter etc. 

[icicle]

Just to follow up on this. Let's say my whole system has 2 inverters. If I want to know the output of each inverter individually, I need to do two variants, with each variant having the defined inverters of my system. Then, if I run that and extract the csv file, will the E_grid of the two variants add up to the E_grid of the variant for the whole system?

 

With this, can I say that this is how I can proportionate the output of the inverters?

[Linda Thoren]

Indeed, the final simulation result always corresponds to the full system. To view the results of the individual inverters, you would need to simulate each one in a separate variant. Depending on how AC losses are defined, the two individual inverters should produce approximately the same as when they are simulated together, although some post-inverter losses may differ due to the lower total system power. If your full system has two inverter before the injection point, this is how you should simulate the system, rather than adding variants together. Separating the inverters into separate variants is a work around to evaluate the individual inverter performance.