kWh Metering [RE-wrenches]

[William Miller]

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Friends:

I ordered several TEDs and installed one at my home.  I had to send most of 
them back as they did not provide accurate information.  The current 
sensors can not differentiate between current flowing in or current flowing 
out.  During the day, when I am selling to the grid, the TED thinks I am 
buying.  This skews the running total and negates many of the benefits of 
this device.

Since I am-- and most people are-- feeding back through a breaker on the 
bus, there is no location to install the current sensors that will isolate 
the consumption feed.  The good news is the TED 5000 is supposed to come 
out this month and it will purportedly resolve this issue.  There is no 
mention of the TED5000 in the on-line store.  From the TED FAQ:

Q. I have a Photovoltaic System and I send power back to the grid. Does TED 
perform net metering?  A. No. TED1000 does not perform net metering. 
TED5000 will perform net metering.

Installation was also problematic:  In a standard flush mount 
meter/main/combo there is not enough room in the customer side to install 
the current sensors.  I opened the utility side and put the sensors on the 
underground feeders, but if I get caught I will have to remove them.  I 
would not do this for a customer.

Additionally, two of my TEDs came without firmware, requiring an 
exchange.  The company was prompt and apologetic in making the exchange.

In summary:  The TED interface is great and I kept one to monitor night 
time loads.  The physical product is well made.  I hope the new model 
solves the issue described above.  If so, I want one for my home and I will 
offer them to customers.

William Miller


At 06:33 AM 1/4/2008, you wrote:

>http://www.theenergydetective.com/index.html might be just the ticket.
>Cheap and easy to install.  We've used a qty of these and are really
>impressed with them.  The only trouble I've had is at my own house where the
>local COOP uses a remote meter reading system (Turtle?) and the read pulse
>caused mine fits.  They claim to have resolved this issue with new models.

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