Altitude effects on PV performance [RE-wrenches]

[Dana Orzel]

I have several installs at 10,000 ft. el. to 13,200ft. el.
Without a snow field in front of the collector @ 10,000 ft. el., I have seen
20% to 30% output increase or 2% to 3% per 1,000 ft. el. depending on
temperature, the colder obviously the more output.
Add a snow field reflecting up at the array and that has added an additional
15%. Add edge of cloud effect and I have seen spikes of 50% over PV panel
rating at 13,200 Ft.
Your controller needs to be over sized to allow for this rarified output.
Allow more time for the installation too, oxygen is 30 to 32% less than sea
level and you will not be working nearly as fast.
Have fun !!

----- Original Message -----
From: "Jeff Oldham" <starpower4u at juno.com>
To: <RE-wrenches at topica.com>
Sent: Thursday, February 27, 2003 5:48 PM
Subject: Altitude effects on PV performance [RE-wrenches]


> Anyone know a basic formula or web site that addresses altitude effects on
output? I can't seem to find anything, I have a project at 12k' in Tibet and
need some ball park numbers for now (we'll take on site readings later).
I've had Everest climbing teams I've outfitted claim very noticable increase
at 15k, but these guys are deprived of oxygen and can't think straight!
>
> thanks
>
>
> Jeff Oldham
>
>
> ________________________________________________________________
> Sign Up for Juno Platinum Internet Access Today
> Only $9.95 per month!
> Visit www.juno.com
>
> - - - -
> To send a message: RE-wrenches at topica.com
>
> Archive of previous messages: http://www.topica.com/lists/RE-wrenches/
>
> List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm
>
> Check out participant bios: www.mrsharkey.com/wrenches/index.html
>
> Hosted by Home Power magazine
>
> Moderator: michael.welch at homepower.com
>
>
>

- - - -
To send a message: RE-wrenches at topica.com

Archive of previous messages: http://www.topica.com/lists/RE-wrenches/

List rules & etiquette: http://www.mrsharkey.com/wrenches/etiquete.htm

Check out participant bios: www.mrsharkey.com/wrenches/index.html

Hosted by Home Power magazine

Moderator: michael.welch at homepower.com

==^================================================================
This email was sent to: michael_welch at sbcglobal.net

EASY UNSUBSCRIBE click here: http://topica.com/u/?bz8Qcs.bz9JC9.bWljaGFl
Or send an email to: RE-wrenches-unsubscribe at topica.com

TOPICA - Start your own email discussion group. FREE!
http://www.topica.com/partner/tag02/create/index2.html
==^================================================================