[RE-wrenches] Array tilt angle doesn't matter?

[Dave Palumbo]

Tom,

 

This is coming from old memory, so I give this with a grain of salt, but I believe the noontime sun angle at my latitude (44.5) is about 78 degrees on June 21st and about 22 degrees on December 21st. That’s a difference of 56 degrees.

 

David Palumbo

Independent Power LLC 

462 Solar Way Drive

Hyde Park, VT 05655

www.independentpowerllc.com 

NABCEP Certified PV Installer

Vermont Solar Partner

23 Years Experience, (802) 888-7194 

 

 

 

From: re-wrenches-bounces at lists.re-wrenches.org [mailto:re-wrenches-bounces at lists.re-wrenches.org] On Behalf Of Tom Elliot
Sent: Tuesday, February 22, 2011 7:46 PM
To: RE-wrenches
Subject: Re: [RE-wrenches] Array tilt angle doesn't matter?

 

 

“The further north you go the wider the summer to winter sun angle.”

 

Bob-O.  Explain this one to me please.  The difference between winter solstice and summer solstice sun angle is 47 degrees, everywhere on the planet, even in Hawaii.  I suspect that in higher latitudes a lower sun angle means more atmosphere to affect insolation but the planet, last time I checked, is tilted the same everywhere.

 

Tom

 

 

 

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