UI Message for Battery Grid Charging with PBI

[cpaulgilman]

Modify existing UI callback function that displays message when grid charging is enabled with PTC to also display message with PBI.

Also trigger message on_change so message appears when you switch to Battery Dispatch pages.

Pull Request Template

Description

Fixes #1759

Type of change

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• [ ] Bug fix (non-breaking change which fixes an issue)
• [X] New feature (non-breaking change which adds functionality)
• [ ] Breaking change (fix or feature that would cause existing functionality to not work as expected)
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• [ ] This change modifies variables in existing compute modules. Please see Checking for PySAM Incompatible API Changes.

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[cpaulgilman]

There's a minor consistency issue in the defaults: the default PBI term for front of meter is 10 years, whereas for BTM it's 0 years. That should be a separate issue if we choose to address it and can probably wait until the release.

I think the default term should be zero if the default amount is zero to force the user to set both the PBI amount and term -- otherwise they may just set the PBI amount and not notice the term.