Residential Load Sheding

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tom baker

tom baker

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Bremerton, Washington
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Master Electrician
I got a call from a person who wants to find out who makes an electrical panel that sheds load as a peak demand is approached, the meter meters the demand and the panel turns off certain loads to keep below the peak demand. This is for an all electica house.
 
Re: Residential Load Sheding

Tom, in the late 70's early 80's I remember installing these type systems (atleast similar in the function) in commercial and industrial facilities. The manufacturers name started with an "L" but I can't remember the name at the moment.

Hopefully it will come to me, but I'm sure someone else will come forward with a system.

BTW, it wasn't Leibert.

Roger
 
Re: Residential Load Sheding

Wow, in this day and time I know that it's out there (or else will be soon). For now I would say custom build ($$$).
steve
 
Re: Residential Load Sheding

Are you refering to a load controller? I think Dencor makes one. We use these when the utility gives a kw$ break from 9 am to 9 pm etc. It has ct's that are mounted around the utility secondary wires, and monitor the usage by relays which switch off loads as necessary to maintain a certain peak demand. I thought Pennstar was another brand, but I can't say for sure. These are quite popular in AZ, as most homes are all electric. The average units have 2 - 30 amp relays and 2-4 low voltage relays contained in an 8" x 10" enclosure. Some of the nicer models have remote status units.
 
Re: Residential Load Sheding

Tom
Your post says residential load shed. Does the utility there charge the residential customer a demand charge? Most utilities charge large commercial and industrial customers. I was not aware of the demand charge being billed to residential customers.
 
Re: Residential Load Sheding

A Cutler APC system can probably do this sort of thing..and it uses the commonly available "CH" type breakers. There's options for the APC system that can kill loads on a schedule, monitor, etc.

In the C/H catalogs its in the "Advanced Residential Products" section.

[ January 28, 2004, 11:21 PM: Message edited by: tonyi ]
 
Re: Residential Load Sheding

Demand meters are very unusual but having a remotely controlled or time of day switch for A/C or WH is common. :D
 
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