Open4Energy publishes lists of products that we believe make unreasonable claims in how they save consumers energy - which we define as "scams"

The product fall into three categories: One; Power Factor Correction scams; Two; Renewable Energy scams and Three: Free Energy scams.

I have linked the three directories above for ease of review and not for seo placements - if you Google any of "power factor correction scams" or "renewable energy scams" or "free energy scams" you will find that the lists we publish are in the top results.

I am creating this post as an opportunity for energy professional to contribute their experiences with any of these products. In particular, to correct us if we are incorrect in our understanding of a particular product - or to add experiences that will help clarify.

Some products are near fraud, and without any redeeming possibilities. This is especially true in the FREE energy category. Others are less obvious, like the worthless plans to build impractical solutions .

The group that I believe needs most discussion is that pertaining to power factor correction. The science of electricity and how Kwh is calculated makes it clear that correcting power factor will not alter the Kwh on an electricity bill. At the same time there are honest people who are convinced that adding a pf correcting device to a home has lowered their electricity bill. 

I was able to test the exact affect on watts when adjusting pf supply to a small fan

PF = 100%  V = 121  A = 0.292  Watts = 35.4

PF = 033%  V = 121  A = 0.912  Watts = 36.3

Based on the above I do see a change of 2.54% in the Watts drawn by the motor, or put another way, it may be that pf correction does not change any Kwh calculation, but it can change the efficiency of the motor. 

I was able to test the exact affect on Watts when adjusting pf supply to a cfl

PF = 076%  V = 121  A = 0.236  Watts = 21.7

PF = 020%  V = 121  A = 0.901  Watts = 21.7

I would appreciate any expert measurements, where a motor is operated at differing PF values, so we can be clear on any actual electricity savings.

I would not buy a unit to correct PF for a small fan, or a fridge if the energy use change is 2.54% - and at such low values could be a measuring error. But if changing the PF supply to a large heat pump motor, from say 80% to 98% really does allow the motor to operate more efficiently, this should be known.

I will still argue that the simplistic assertion that correcting PF saves 15% or 40% in an electricity bill is a scam, but without harming the legitimate efforts of the PF industry to correct PF on a circuit or device where savings can be achieved.

I look forward to the discussion, by experts (no product promoters) in this arena.

Tags: energy scams, free energy, magnetic energy, power factor

Views: 1427

Reply to This

Replies to This Discussion

Yes and yes

Many of our audits and retrofits have been under the aegis of a local community-owned utility which got a grant to partly subsidize these efforts. The grant has expired, but cooperation continues.


I insist on a starting with a year's worth of utility bills pursuant to an audit. That allows approximation of HVAC vs balance-of-home. Other major loads such as water heating, laundry and pool pumping are easy to estimate with a fair degree of certainty.

Clients with above average plug loads, such as multiple refrigerators or extravagent media centers are loaned a Kill-A-Watt or two and given the homework assignment of deploying them and reporting results.

We deploy retrofits with predicted savings anywhere from 15 to 50+% savings, and I'm rarely too far off the mark. I generally try to predict conservatively and bask in client delight when my savings forecast comes in a bit low.

This stuff ain't rocket science - we know what works and what doesn't.

...because you track, right?

Oh man I love hearing that. This exists SOMEWHERE on the resi level!!


A huge opportunity is being missed where I live because process ends at test out. My tracking was curiousity driven, not grant driven, so it's not systematized.

Any chance I can get a look at your process sequence and tracking? Details that seem "common sense" from looking back perspective are not. To systematize would require onerous development through painful trial and error I no longer have the energy for. And since I'm no longer doing audits the opportunity doesn't exist anyway.

Best practices for the approach you are using need to be documented and disceminated so others can adopt them and things can get headed in the right direction again.

I think you might be inferring too much from this...


Basically all I do is compare pre and post retrofit energy bills (nearly always just electricity) on a same month basis, adjust for climate if degree days are way off.

RSS

Home Energy Pros

Home Energy Pros was founded by the developers of Home Energy Saver Pro (sponsored by the U.S. Department of Energy,) and brought to you in partnership with Home Energy magazine.

Latest Activity

Craig Foley posted an event
Thumbnail

NESEA BuildingEnergy '15 at Seaport World Trade Center, Boston

March 4, 2015 from 10:30am to 12:30pm
High-Performance, Green Homes in Residential Real EstateInstructor Craig Foley will present three…See More
4 hours ago
Casey Gesell posted a video

ThermalDry® Insulated Floor Decking!

Larry Janesky, owner and founder of Dr. Energy Saver is once again On the Job insulating and finishing a basement in the northeast – and introducing a brand new insulation product: ThermalDry Insulated Floor Decking. ThermalDry Floor Decking was…
4 hours ago
Profile IconBergen Heat, Travis Thom and Amita Singh joined Home Energy Pros
7 hours ago
Tom White's video was featured

U.S. Department of Education Webinar for HVACR Educators

Rebroadcast from On April 30, 2013 Sharon Miller and Robin Utz of the U.S. Department of Education conducted a one hour webinar for HVACR educators to provide them firsthand information from Washington. Highlights include: * A blueprint to revise…
7 hours ago
Tom White posted a video

U.S. Department of Education Addresses HVACR Educators 4-30-2013

Rebroadcast from On April 30, 2013 Sharon Miller and Robin Utz of the U.S. Department of Education conducted a one hour webinar for HVACR educators to provid...
7 hours ago
Nate Adams's discussion was featured
18 hours ago
Bud Poll replied to Bud Poll's discussion CO poisoning in Yarmouth Maine
"Hi Chad, I sure would like to hear the follow-up on what caused the CO issue down there.  As…"
22 hours ago
Chad Mcaulife replied to Bud Poll's discussion CO poisoning in Yarmouth Maine
"I got a call yesterday from a homeowner who had a direct vent furnace installed a year ago and she…"
23 hours ago

© 2015   Created by Lawrence Berkeley National Laboratory.

Badges  |  Report an Issue  |  Terms of Service