Economic evaluation & self-consumption

[TAu]

Hello, I am trying simulate a situation where the "self-consumption" should be 100% and "sold energy to grid" should be near 0%. I have created a CSV-file of the daily user's needs and used that in the "self-consumption" of the Main parameters.

So why is the "self-consumption" in Economic evaluation 0 kWh/year and the "Sold energy to grid" basically all produced energy, and how do I change it? It messes up the Financial results, because PVsyst thinks I want to sell all the produced energy.

Thanks

[André Mermoud]

Before analyzing the economic evaluation, please analyze first the energy output of your simulation.

I don't understand well what you have specified on your CSV file: with CSV reading, PVsyst only accepts hourly consumption values, not daily values.

If you want to create a PV system ensuring 100% self-consumption, it should be of sufficiently low power for never exceeding the User's needs, even by clear sky conditions.

[TAu]

Before analyzing the economic evaluation, please analyze first the energy output of your simulation.

I don't understand well what you have specified on your CSV file: with CSV reading, PVsyst only accepts hourly consumption values, not daily values.

If you want to create a PV system ensuring 100% self-consumption, it should be of sufficiently low power for never exceeding the User's needs, even by clear sky conditions.

 

Thanks, Andre.

I realized that the self-consumption has to be in hourly consumption values, like you said. I had the self-consumption in daily consumption values and that's why in the economic evaluation all the generated power was on the "sold energy to grid" row.

[zafris]

Before analyzing the economic evaluation, please analyze first the energy output of your simulation.

I don't understand well what you have specified on your CSV file: with CSV reading, PVsyst only accepts hourly consumption values, not daily values.

If you want to create a PV system ensuring 100% self-consumption, it should be of sufficiently low power for never exceeding the User's needs, even by clear sky conditions.

 

Thanks, Andre.

I realized that the self-consumption has to be in hourly consumption values, like you said. I had the self-consumption in daily consumption values and that's why in the economic evaluation all the generated power was on the "sold energy to grid" row.

 

Thanks for the info, where can I find a file to make my owns calculations?

Best

[martinNS]

I have a problem with Economic evaluation: Detailed economic results don't reflect saved money only calculate profit from excess energy to grid   
Self-Consumption 551MWh/year

Sold energy to 19.4MWh 

Profit per year 2162eur 

  

 

[Hizir Apaydin]

Dear Martin,

Indeed there seems to be an issue. Could you please export your project (PVsyst main menu "File>Export project") and send it to support@pvsyst.com so that we may investigate more in detail your issue.

Regards