Author Topic: 20 Series Units  (Read 2851 times)

tlveik

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20 Series Units
« on: August 26, 2011, 02:06:14 AM »
Updates for 20 series units are lagging those for 21 series units.  Is it in the plan to continue updating 20 series units?  I hope.

I can't use PlotWatt, presumably because of a problem in gateway version 406.

Tom

TedDev

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Re: 20 Series Units
« Reply #1 on: August 26, 2011, 02:46:19 AM »
We are testing the beta for 20-series units now that contains the 3rd party post fix for the bug discovered in R406.

http://www.theenergydetectiveforums.com/index.php/topic,523.0.html

In some cases, like demand charges, we can't support 20-series users due to hardware differences.




GAR

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Re: 20 Series Units
« Reply #2 on: August 26, 2011, 08:19:20 AM »
110825-2356 EDT

tlveik:

Your mention of PlotWatt caused me to look at the presentation at http://www.energycircle.com/blog/2010/09/21/plotwatt-figures-out-energy-use-per-appliance-from-electricity-monitor-data

My reaction is that the graph is not descriptive of power consumption. A refrigerator does have a periodic pattern but it does not look like a sawtooth as shown at the above site. Furthermore unopened it should be more consistent. The problem is long average data values are used and plotted as connected points.

For a view of what a refrigerator power plot vs time looks like see my plots P29 and P30 at http://beta-a2.com/EE-photos.html .

When averaging time is long relative to the time base a step plot provides a more informative picture of the changes as in my plot P30.

I believe you will find that a study of individual loads is more useful in determining what changes in equipment are required to reduce costs. Whole house analysis serves as a means to spot abnormalities.

.

jrwalte

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Re: 20 Series Units
« Reply #3 on: August 26, 2011, 07:54:53 PM »
PlotWatt looks interesting. I've signed up for the beta.

« Last Edit: August 26, 2011, 07:57:05 PM by jrwalte »

tlveik

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Re: 20 Series Units
« Reply #4 on: August 27, 2011, 12:44:26 AM »
110825-2356 EDT

tlveik:

Your mention of PlotWatt caused me to look at the presentation at http://www.energycircle.com/blog/2010/09/21/plotwatt-figures-out-energy-use-per-appliance-from-electricity-monitor-data

My reaction is that the graph is not descriptive of power consumption. A refrigerator does have a periodic pattern but it does not look like a sawtooth as shown at the above site. Furthermore unopened it should be more consistent. The problem is long average data values are used and plotted as connected points.

The PlotWatt plot gets more detailed and represents actual power consumption much better when you zoom in.  It has one minute detail which is fine for me.  I'm not really interested in their per-appliance calculations because I have my doubts that it will be correct.  Maybe they can prove me wrong.  So far I haven't been able to keep the PlotWatt / Ted connection working long enough for them to complete the calculation so I'll have to wait for the next TED update.

jrwalte

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Re: 20 Series Units
« Reply #5 on: August 27, 2011, 01:27:03 AM »
Did you miss the link the TED support offered for the beta firmware that works with 20 series? Have you tried it?

tlveik

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Re: 20 Series Units
« Reply #6 on: August 27, 2011, 01:46:49 AM »
I guess I missed that so I looked it up and found it.  Since it will reset totals to zero I think I'll wait for the release.

Tom