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Unreliable grid

  • selfa
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06 Apr 2019 06:52 #6735 by selfa
Unreliable grid was created by selfa
1.Can SAM model unreliable grid. If yes how?
2. what assumptions do I need to do for me to model off-grid PV system in SAM

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  • pgilman
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08 Apr 2019 18:26 #6736 by pgilman
Replied by pgilman on topic Unreliable grid
Hello,

SAM does not have explicit inputs for modeling an unreliable grid. SAM assumes that the system can always deliver power to the grid, but you could use the "Availability and Curtailment" inputs to model grid outages as periods when the system output is curtailed.

SAM does not model off-grid systems.

Best regards,
Paul.

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  • javierache
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21 Feb 2020 02:27 #7991 by javierache
Replied by javierache on topic Unreliable grid
Ok. I understand that SAM does not model off-grid systems, but if the battery bank is great enough for not need to import from grid, why always there is a little value for energy from grid, no matter how great is the size of batteries?

Thanks in advance for helping to interpret this kind of results.

Javier H.

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  • pgilman
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21 Feb 2020 21:05 #7992 by pgilman
Replied by pgilman on topic Unreliable grid
Dear Javier,

The inverter nighttime consumption may be responsible for that small amount of grid power. You can verify that using the "Inverter night time loss" variable.

Best regards,
Paul.

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  • javierache
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21 Feb 2020 21:59 #7995 by javierache
Replied by javierache on topic Unreliable grid
I think so, but this night consumption couldn't be covered from the bank of batteries (In SAM), seeking the goal of reducing to zero the imports from grid?
Thank you Paul.

Javier H.

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