[OZAPRS] Solar panel question

[Darryl Smith]

A good rule of thumb is that a 4W panel will generate 4Watt-Hours per day
during sunny days. There are cheap ways to improve the performance of
solar
cells though. Buy a few bags of white sand, and spread it on the ground.
This will improve the reflection of light from the ground hitting the
cells.


Darryl

---------
Darryl Smith, VK2TDS POBox 169 Ingleburn NSW 2565 Australia
Mobile Number 0412 929 634 [+61 4 12 929 634 Int] - 02 9618 6459 
www.radio-active.net.au/blog/ - www.radio-active.net.au/web/tracking/


-----Original Message-----
From: ozaprs-bounces at aprs.net.au [mailto:ozaprs-bounces at aprs.net.au] On
Behalf Of Mark T. Webster
Sent: Wednesday, 3 January 2007 10:59 AM
To: VK / ZL APRS Users
Subject: Re: [OZAPRS] Solar panel question

re 250ma panel.

I don't think you will get 250ma except during the brief period when the
panel
is optimum to the sun. My experience with a 5amp (rated) panel on a boat
was that I was lucky to get an average of 2 amps over say 12 hours of
daylight. I reckon your 250ma panel would be lucky to average 150ma over
a 24hr period! This is just an opinion with no scientific backing so take
the advice lightly.

VK2BAK


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