| |
[index]
[month]
[prev]
[next]
[thead-prev]
Subject: Re: [M]: [M] OT: Recharging car battery while at 3 day star party
From: Bill Arnett
Reply To: mapug@shore.net
Date: Thu Jul 23 01:22:12 1998
|
While you're here, how about checking out the
Astronomy Book
List ? |
At 2:57 PM -0700 7/22/98, Clark Williams wrote:
...
For calculating sizing and loads start at:
<<http://www.solarelectric.com/html/solar_system_sizing_principles.html>...
OK, suppose that its a long winter night and you're running your dew
heater. I figure that might be as much as 3 amps (at 12v) for 12 hours.
That's 432 watt-hours. If you get a 50 watt panel it will take 9 hours of
full sunlight to replace that much energy. That might just be possible but
barely in the winter depending on your latitude. Such a panel, eg
http://www.solarelectric.com/Siemens/0101.htm
is about 4.5 square feet. So I guess it is feasible but just barely.
---
Bill Arnett "Science is a way of trying
Emerald Hills, CA USA not to fool yourself." -- Feynman
View index by [date] [author] [subject]
Previous message: Re: [M]: Article on 416XT cooling, Gene J Ducote
Next message: No Subj, Lawrence Harris
Previous message in thread: Re: [M]: OT: Recharging car battery while at 3 day star party, J Nordby
|
|