[RE-wrenches] Power Factor

Allan Sindelar allan at positiveenergysolar.com
Thu Jul 30 17:58:36 PDT 2009


Ron,
Why try to break it to them at all? Just answer the question. Put down 1.0
or unity. That's what they're looking for. Then go on to the next question.
They'll never catch it.

Allan Sindelar
Allan at positiveenergysolar.com
NABCEP Certified Photovoltaic Installer
EE98J Journeyman Electrician
Positive Energy, Inc.
3201 Calle Marie
Santa Fe, New Mexico 87507
505 424-1112
www.positiveenergysolar.com

-----Original Message-----
From: re-wrenches-bounces at lists.re-wrenches.org
[mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of boB Gudgel
Sent: Thursday, July 30, 2009 1:20 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Power Factor

Ron Young wrote:
> Ok, so all seem to be in agreement more or less. How do I break it to 
> British Columbia Hydro? :-|
>
> I think they must be misunderstanding what they are asking for but the 
> question is in the section for PV and on the same line as the total 
> output in Kwh of the PV. Power Factor %

It was most likely just  a trick question.

You're gonna fool them, though !   :)


boB



>
> I'll contact them and see where this goes but I don't fully understand 
> what power factor is which will make it hard to argue my case. My 
> understanding is that it is the difference between what the utility 
> supplies to a residence vs. the actual loads being used by that 
> residence expressed as a percentage. 
>
> I came across the following course offering by SEI that discusses 
> Power Factor with reference to PV:
>
> POWER FACTOR AS IT RELATES TO SOLAR INSTALLATIONS 
> Presented By: Michael Smith of Alpine Management Systems 
>
>  
>
> This session will deal with power factor: What is power factor?  What 
> causes low power factor?  Why improve 
> your power factor? This session will explain the role of power factor 
> correction as it applies to solar installations. 
> There are currently over 67,000 KVAR installations in 26 countries 
> resulting in phenomenal energy savings with 
> a corresponding reduction in greenhouse gas emissions. Session 
> includes several KVAR installations and the 
> resultant savings. 
> http://www.solarenergy.org/workshops/docs/industry08_trainingdetails.pdf
>
> Ron
>
> On 30-Jul-09, at 7:43 AM, Wind-sun.com wrote:
>
>> There is no such thing as a power factor for DC or for panels.
>>  
>>
............................................................................
......................
>> Northern Arizona Wind & Sun - Electricity From The Sun Since 1979
>> Solar Discussion Forum: http://www.wind-sun.com/ForumVB/
>>
............................................................................
......................
>>
>>     ----- Original Message -----
>>     *From:* Ron Young <mailto:solareagle at solareagle.com>
>>     *To:* RE-wrenches <mailto:re-wrenches at lists.re-wrenches.org>
>>     *Sent:* Wednesday, July 29, 2009 5:45 PM
>>     *Subject:* [RE-wrenches] Power Factor
>>
>>     Can anyone point me in the direction to find the power factor for
>>     Sanyo HIT N 205 panels? The utility is requesting it on a net
>>     metering interconnection application.  
>>
>>     Ron Young
>>     earthRight Products - Solareagle.com
>>
>>
>>
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