[scrambler]

Do the subpanels that hold the Solar breaker only hold the solar breaker, or do they also hold regular load breakers?

Because if they do then you cannot monitor these subpanel through their feeding breaker, because the power will eventually go in both direction there, and right now, the 50A CTs do not report bidirectional power. In the future they will, but right now they don’t.

So if a 50ACT is on a breaker designated as load and installed in the load direction, they will always record the power as + regardless of direction, and 50ACTs on a breaker designated as Solar (installed in reverse) will always report load as minus regardless of direction

[scrambler]

Well regarding the problem mentioned above, it eventually fixed itself, so not quite sure what happens.

If it happens to you, be patient 🙂

 

[scrambler]

It does detect the L1 L2 phase to find out what CT is on which one.

When you did your new setup, did you make sure the Solar breakers were OFF, AND that you had some significant house load on both phases?

[scrambler]

If you moved CTs around, did you do a complete reset and re initialization of the APP.

Because it does all its calibration during the initial setup, and may be moving CTs around messed things up

[scrambler]

Thanks, but this is why I am asking @emporiainfo to clarify things.

They very specifically said on other posts that unlike Gen 1 that used 120Volt for calculations, the Gen2 used true Amps, True Volts AND power factor to calculate the Watts. They even said that it is possible they will include this data in the data download at some point in the future.

This is why their last remark is confusing as it somewhat implies some of the data I mention are still assumptions…

[scrambler]

@emporiainfo

You last statement

“(as now it only considers 120v when calculating amps)”

Is confusing me.

There has been many talks about what the Gen2 actually measures, and I had understood from what Emporia reported, that it measures Actual voltage, Amps and Power factor to calculate accurate Power.

Are you now saying that this is not the case??

Can you be very specific about what is being measured and what is eventually being Assumed?

Thanks

 

• This reply was modified 3 years ago by scrambler.

[scrambler]

May be the app is in a messed up stage.

Do you have an other device you can install the app on to see if you have the same issue there?

[scrambler]

I have no problem scrolling through sec, min, hr data on the app, so this is not the issue.

Try a shutdown and restart of the device the app is installed on

 

• This reply was modified 3 years ago by scrambler.

[scrambler]

@emporiainfo

Thank you for at least allowing 7 /8 days for the minute data, this is helping.

Have you decided to offer a data subscription so we could extend the minute data download to months or year?

• This reply was modified 3 years ago by scrambler.
• This reply was modified 3 years ago by scrambler.

[scrambler]

Someone also just mentioned that the App must be given the Bluetooth access.

[scrambler]

My understanding is as follow.

The 200A CTs are directional, and do measure both direction/sign. The vue does assume they are located above everything, so if you have solar above them, the calculations in the app will be wrong, but individual, measurement should still be right, so you can do your own reconciliation in excel.

About:

“Although the instructions mention fitting the CT’s directionally I was under the impression that they are only able to “read” the magnitude not direction of a current and had assumed the request for directionality was possibly related to accuracy?”

All CTs, including the 50A CTs measure directionally. BUT for now the Software ignores the sign of the 50A CTs measurement, so they will only report one sign (unlike the 200A Cts). That is supposed to be fixed in a near future SW update.

This is why it IS important to Wire the Solar CTs in opposite direction, as this is what the SW assumes.

 

• This reply was modified 3 years ago by scrambler.

[scrambler]

Love that channel 🙂

[scrambler]

You cant right now.

Amps as well as other values like Volts, Power factor… will supposedly become available in the future, but are not for now.

We are waiting impatiently 🙂

 

• This reply was modified 3 years ago by scrambler.

[scrambler]

A couple of things that are important for solar setup.

• Did you mount the CTs on solar breakers in reverse from the load breakers (pointing in opposite direction)
• Did you turn off the solar breakers before powering the Vue and doing the setup, and make sure you had some significant loads on both grid legs.

If you missed either, you may need to redo the setup from scratch following the guidelines.

• This reply was modified 3 years ago by scrambler.

[scrambler]

My setup is a little simpler as the Critcal load panel is normally connected to the grid in the house panel, and has its own transfer switch to switch to the inverter only in an outage.

So when the grid is up, the solar inverter breaker in the house panel mostly goes from inverter to the house panel. Only exception is if the Inverter is topping off the battery from the grid outside of solar hours. In that case, power goes from house panel to the inverter, but is still recorded as going the other way.
This means I have to massage the data in Excel to correct the sign during these events which are rare and short (one hour at most).

Of course during an outage, the issue would be worse, as the Critical load panel would then be fed by the Inverter, and this means the power measured at the inverter breaker in the house panel may be going into one direction, sometimes the other, so the reading becomes unusable.

Given that situation, I am waiting for them to implement the directional reading in SW, hoping it wont be too long.

 

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