REPP logo banner adsolstice ad
site map
Google Search REPP WWW register comment
home
repp
energy and environment
discussion groups
calendar
gem
about us
employment
 
REPP-CREST
1612 K Street, NW
Suite 202
Washington, DC 20006
contact us
discussion groups
efficiencyefficiency hydrogenhydrogen solarsolar windwind geothermalgeothermal bioenergybioenergy hydrohydro policypolicy
Pvusers Archive for January 2002
102 messages, last added Tue Nov 26 17:28:41 2002

[Date Index][Thread Index]

Re: [pvusers] shadow






> Would this be expected to interfere with our ability to generate solar
> electricity? .....

Yes, it should reduce your output.
What you can do is look @ the output current just before the shadow
hits the panels, and then look at the output when the shadow is there.
See how much the output current changes.


----------
> A question from a non-techie:
>
> I just noticed that our next-door neighbor here in San Francisco added a
> tall, narrow metal smokestack to his fireplace chimney. (This must have
> happened while we were out of town for the holidays.) At this time of
year,
> after 1 p.m. it casts a shadow approximately 5 feet long by 1 foot wide
> onto our rooftop solar panels.

I had a similar problem... In the summer,  the neighbors  tree has  grown
so
wide that it  blocks off the summer sunlight until noon.... my  solution
was to
move my PV's (which are on the ground),  so that  I can collect some of this
lost sunlight.  When I  move from Houston (hopefully in the near future)
then
the PV's positioning problem to collect a full days sun, will be solved.
Trying
to collect a full days sunlight in the city, (with pollution, trees, and
small sized
lots) is challenging...

Gig






--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*--*
  List sponsored by CREST/REPP  
	http://solstice.crest.org/   http://www.repp.org/