Still no ESS in United States?

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sot asked Nov 28, '22

Still no ESS in United States?

I've found a few old posts where people made the same discovery that I have: there appears to be no way to take advantage of ESS in the United States because there is no grid type available for the US. Am I assuming correctly that that is still the situation? Maybe I am doing something wrong.

Can anyone tell us if Victron plans to improve on that, and when? I feel that I have made a terrible mistake buying "the best" equipment only to find out that it can't make use of my solar power during the day except to charge the battery. Would it be possible for the "none" option to disable only the grid feedback capability instead of disabling ESS entirely?

ESS usa

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Modifications Space

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Answer 1 · 2022-11-28T18:53:06Z

shaneyake answered · Nov 28, 2022 at 06:53 PM

You can use ESS in the US, it just really depends on the utility most inverters do not have the relevant UL certification.
The GRID code to be selected is "Other" and you can manually fill in the grid parameters but you will need the utility to be okay with this. There are states where this is okay, you just have to check local codes and regulations.

The other option is to use None and have the inverter disconnect from Grid and run in offgrid mode while you have solar/battery. Most people use the GX generator options with wire from GX relay to AUX1 on the inverter for this but NodeRed is a better solution.

I would email salesusacanada@victronenergy.com and ask them to please get the inverters certified, especially the multiplus-II series. If enough people ask I am sure they will do it.

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Answer 2 · 2022-11-29T18:57:14Z

sot answered · Nov 29, 2022 at 06:57 PM

Thanks for the quick reply. Where can I find documentation about the use of the AUX inputs and interfacing them from the GX? The manual shows where they are but I don't see any detail about how to use them.

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shaneyake commented · Nov 29, 2022 at 07:15 PM

My blog post should point you in the right direction.
https://shaneyake.blogspot.com/2022/09/victron-disconnect-inverter-from-grid.html

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Answer 3 · 2023-03-25T00:35:45Z

gutzpowers answered · Mar 25, 2023 at 12:35 AM

I know this is an older thread but in the US is there a way to use CTs on the mains to do zero sell back to grid? When grid is down only the critical load panel will be powered.

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Answer 4 · 2023-03-25T08:16:51Z

Michelle Konzack answered · Mar 25, 2023 at 08:16 AM

You do not need it.

Simply setup ACin as GENERATOR and switch the Multiplus to ON.

You do not even need a MultiPlus-II for it.

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gutzpowers commented · Mar 25, 2023 at 11:50 AM

I don’t see how that wound push power back to AC IN but stop before it gets to the meter (self consumption).

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Answer 5 · 2023-03-27T08:47:11Z

Michelle Konzack answered · Mar 27, 2023 at 08:47 AM

First of all, if you set it "Generator" then "Feed-In" is automatically disabled, because it is logic, that you can not feed into a Generator.

You can also configure your MultiPlus-II with "ZERO Feed-In".

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