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damonl

Hybrid PV / Diesel Generator Option with SMA Fuel Saver Controller

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Hi,

I'm looking to design a purely off grid hybrid PV / Generator system but without batteries and include the SMA fuel saver controller as an energy management system.

Can this be done in PVSol?

Thanks

Regards

Damon

 

 

 

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Hi Damon,

while we haven't implemented the exact control mechanisms of the SMA Fuel Saver, you could do the following to mimic a hybrid PV system:

  • Go to the battery and battery inverter page, select the first cluster in your system configuration
  • Click the "Battery Management" link
  • Disable the battery as good as possible with these settings:

image.png

It will not be possible to avoid their usage completely, but you can limit their participation quite effectively, so that your load will be covered by PV and diesel only:

image.png

Hope that helps, kind regards,

Martin

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Hi Martin,

Thanks, it does answer the battery part of the equation but traditional PV Diesel generator systems only really allow the PV system to provide up to 20% of energy capacity. The SMA fuel saver controller increases this capacity to 60% though.

I suppose you can't cater for the SMA fuel saver controller though?

Regards

Damon

 

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Hi Damon,

you are right, these aspects are not implemented in the simulation right now. What do you mean by energy capacity? Are these values a percentage of the instantaneous load (power), or is it in terms of daily or annual energy share?

Kind regards,

Martin

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ok, I understand now. No, that is definetely not possible to accomplish right now. But is it never possible to cover the entire load with 100% PV on sunny days with these systems? That seems a bit odd to me...

 

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No, but there is technology that can maximise PV output and minimise the diesel genset load according to the time of day, climatic conditions and demands.

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