Power to kWh feed playing up

My power to kWh feed is playing up on my 9.2 | 2015.12.10 install.

On the My Electric App the instant trace seems fine and changes with a change of load, but the overall daily usage isn't correct (wildly under).

Any ideas?  been working fine for months.  Rebooted (unplugged) both the Pi and EmonTX.

borpin123's picture

Re: Power to kWh feed playing up

Any ideas anyone?

borpin123's picture

Re: Power to kWh feed playing up

I also cannot get into the admin screen.  All I get is Admin re-authentication required.

Something is seriously amiss.

borpin123's picture

Re: Power to kWh feed playing up

I solved the admin screen (flushed the cache) and then ran the useful scripts to rebuild the accumulator feed.

However, the accumulator process is still not working reliably.  Can anyone suggest what the problem might be and how to fix it?

TrystanLea's picture

Re: Power to kWh feed playing up

Could you post a screenshot of what you see both the bargraph and the accumulating feed using the standard feed data viewer?

Paul Reed's picture

Re: Power to kWh feed playing up

...still not working reliably 

In what way is it not working reliably? You need to give us more information about the problem in specific terms.

Paul

borpin123's picture

Re: Power to kWh feed playing up

By reliably, I mean sometimes it seems to accumulate OK and other times it doesn't.

3 screenshots (hopefully).  1. My Electric App this afternoon.  Should be nearer 9kWh for the day. One of the recent power feed and one of the accumulating feed zoomed out which I think shows the gradient tailing off.

Is there anything in the logs to look for?  When I do look they appear normal.

Cheers

Paul Reed's picture

Re: Power to kWh feed playing up

Can you 'zoom in' just to todays data in your second graph - the power to kwh feed, and post it, so I can see what has accumulated  today.

Paul

borpin123's picture

Re: Power to kWh feed playing up

OK, graph is pretty flat though because of the scale.  24 Hrs.  Exported as CSV as well.

 

Paul Reed's picture

Re: Power to kWh feed playing up

I forgot that the y axis doesn't zoom to the data, but the CSV file is useful, and showing that you've used about 12kWh today. This suggests that power to kwh accumulator is probably recording as expected.

If you add a power to kwh/d feed after the power to kwh, you should see 12kWh's in the bargraph for today, which would confirm this.

Paul

borpin123's picture

Re: Power to kWh feed playing up

Yes but....

The screenshot taken at 17:40 shows 3.9kWh used.  My background is around 500Wh so that should have been around 9kWh on its own.  It has increased quickly since then, in fact after I logged into the web view.

Could the process be getting stuck somehow?

Cheers

borpin123's picture

Re: Power to kWh feed playing up

Paul,  What does the CSV show was used by 17:40?

pb66's picture

Re: Power to kWh feed playing up

Do you have PV? If so is 12kWh the nett balance?

I ask as the csv shows the increase throughout the bulk of the day is very very low in fact in places it goes down. Later in the day the rate increases, possibly due to an increase in use but also possibly due to the sun going down perhaps?

Does the shortfall amount track the amount generated?

Depending on your processlist an "allow positive" may fix it 

Paul 

borpin123's picture

Re: Power to kWh feed playing up

Still having problems with this.  It sometimes catches up but more often than not.  Enclosed 2 screenshots, one before I ran the php power_to_kwh.php script and one after I ran it.

I do not have any PV.

 

TrystanLea's picture

Re: Power to kWh feed playing up

It looks like the kwh data for all the days have changed, am I reading that correctly? are we looking at the same period, same week?

Is the data correct if you view it in the web based emoncms myelectric app  rather than the android app?

I would take a manual meter reading from your utility meter and note down the wh accumulator in emoncms value at that point. Run a test for a couple of days and compare the result.

borpin123's picture

Re: Power to kWh feed playing up

Yes all changed. The screenshots are just before running the script then straight after. The web and app report exactly the same just easier to do a screenshot from the app.

Yes i'd thought of doing that but it looks like the live update is what is not working correctly as the figures after running the script are about right.

pb66's picture

Re: Power to kWh feed playing up

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