[RE-wrenches] Power Factor

Ron Young solareagle at solareagle.com
Thu Jul 30 18:23:47 PDT 2009


Well, as it's the first grid-tie system in this region they are  
paying close attention. The guy I am dealing with is very stern and  
precise. I put down 100%, as they wanted a percentage. So we'll see.  
Thx all for the feedback, helpful as always!

Ron

On 30-Jul-09, at 5:58 PM, Allan Sindelar wrote:

> 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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