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Unusual use case during Agile Plunge periods

Posted: Wed Apr 29, 2026 7:04 pm
by entdgc
After a couple of months of using my Fox solar/battery system I now have pretty comprehensive Home Assistant setup. I can set it to any mode at the press of a button, schedule any mode at any time, solar optimised (based on Solcast predictions) to charge as late in the day as possible and fully integrated with Agile.
Even so I have a particular use case that I cant get my head around. Agile on occasions (mostly wind related I suspect) offers what are called PLUNGE pricing when you are PAID to consume electricity. My HA system recognises these and sets the work mode to backup to stop consumption from the battery at these times. However if the sun is shining in these times my panels power the house meaning there is no advantage to me for these plunge price periods (on sunny days).

So what I would like is...

1) Stop battery powering the house (Backup?)
2) Stop panels powering the house (?)
3) Power the house from the grid
4) Export all solar being generated to the grid.

Is this even possible? Maybe by manipulating work mode and import/export kw/amp limits?
I cant be the only one in this situation so what settings do you all recommend or do you have a strategy that works well in this situation.

Re: Unusual use case during Agile Plunge periods

Posted: Wed Apr 29, 2026 8:30 pm
by MaterialBarracuda48
I think the only way you can do this is to turn the PV isolator physically.
If there's a way, I cannot think of one currently.

Re: Unusual use case during Agile Plunge periods

Posted: Thu Apr 30, 2026 8:35 am
by entdgc
Yes as I thought. The best strategy I have come up with so far is to stay in feed-in first until the best plunge prices then put everything I need on then, force charge mode, car charge, washing machine, hot water heater... This should consume all the solar and start to eat into the plunge electricity...or just get on with life in the knowledge I already have 'free' electricity, something I would have loved to say only a few months ago...😜😁

Re: Unusual use case during Agile Plunge periods

Posted: Thu Apr 30, 2026 10:05 am
by MaterialBarracuda48
I guess it comes down to how much PV you have installed, if small then I wouldn't bother about it too much.
If you have a sizable array, then might be worth turning off PV for the negative pricing if you intend to milk it.

Just depends on how much effort you wish to put in :D
When I was on Agile, I didn't bother about turning off the 6.16kWp worth of panels myself.

Re: Unusual use case during Agile Plunge periods

Posted: Thu Apr 30, 2026 12:56 pm
by entdgc
Absolutely not obsessed with making/saving every penny (though my wife might disagree 🤣). I just love a technology challenge and if there is a programmable fix then all the better. I definitely won't be turning off my panels! Thanks for the suggestion though.