[Oeva-list] OT: Real or Scam? Electricity Saver

bob at research13.com bob at research13.com
Tue Jul 15 13:36:50 PDT 2008

Meters haven't changed much since 1888. You probably also know smart meters are coming and there are some pilot programs. The PUCs are encouraging smart meters to give customers more knowledge and opportunities for programs to manage loads (both personal and system/utility-wide).

The new solid state meters can measure "power factor" and other things - "real time" measurements and linear measurements along with the ability to get a more accurate bill without a meter reader. Perhaps our utilities should look into financing these "power factor" devices to help reduce "peak demand." It seems like the pilot program smart meters should be able to provide the averages of potential savings already (anyone reading have access to this data?). It also would give people feed back if they were part of a "time of use" program which typically offers lower rates in the evening when you might want to charge your EV.

The California "rolling black outs" were caused by peak demand issues. We have not had hot weather sufficient enough to test the "system" in a while. Global warming suggests more peak demand challenges are coming. The smart meters would allow utilities to communicate with or "shut off" the biggest consumers and have the biggest impact in lessening peak demand. 

If this "electricity saver" really works -- How about this for a tag line "Give up your family joules and save" ... Lord, I apologize for that last pun....

-----Original Message-----
From: Tim Kutscha [mailto:tim_kutscha at yahoo.com]
Sent: Tuesday, July 15, 2008 12:31 PM
To: patrick0101 at gmail.com, 'oeva'
Subject: Re: [Oeva-list] OT: Real or Scam? Electricity Saver

Hi Patrick,

It looks like this device does "power factor correction" (PFC) for inductive loads. See the following:


As far as your electric bill, I believe the power company charges large customers like industry based on their power factor (PF), especially if it is less than 1. For residential (home) customers, I've read that the power company doesn't care about PFC and charges people the same, whether their load is power factor corrected or not. I'm guessing the electric meters used to measure the power factor are more expensive.

Because many battery chargers for EVs are switching power supplies, they should have power factor correction to maximize the current they can pull from the wall. I think this is why the chargers from Manzanita Micro are called PFC-20/30/etc...


----- Original Message ----
From: "patrick0101 at gmail.com" <patrick0101 at gmail.com>
To: oeva <oeva-list at oeva.org>
Sent: Tuesday, July 15, 2008 11:31:20 AM
Subject: [Oeva-list] OT: Real or Scam? Electricity Saver

Have any of you seen or used something like this? Do you know if it works as advertised. I could not find it on snopes. 


>From their FAQ

How Does the Power-Save Unit Work?
The Power-Save reduces the amount of power drawn from the utility by storing (in its capacitors) otherwise lost electricity (watts) caused by the inductive motors in your home. (Some examples of inductive motors are Air Conditioning units, refrigerators, freezers, washers, dryers, dishwashers, pool pumps, vacuum cleaners, furnace blower motors, fans etc.) The technology applied by the Power-Save 1200™ Unit supplies that stored electricity back to your inductive loads, thus causing you to decrease your demand from the utility. If you decrease your demand from the utility, your meter slows down, and you use less electricity. The thought is, you've already paid for that electricity, why pay for it and waste it when you can pay for it, store it, and reuse it again. This whole process is called power factor optimization.

Sunlight will never cost $4/gallon

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