-----Original Message-----
From: elec-trak-bounces cosmos phy tufts edu
[mailto:elec-trak-bounces cosmos phy tufts edu] On Behalf Of Christopher
Zach
Sent: Sunday, March 25, 2007 11:11 PM
To: Matthew callahan
Cc: elec-trak cosmos phy tufts edu
Subject: Re: (ET) Wind power and tractor batteries
Wow, that's a *lot* of stuff to think about. Right off the bat get a
subscription to home power magazine. I've thought about living off the
grid, and a combination of wind and solar would probably be best.
The big question is how much power do you need, how quickly do you need
it, how much power is available, and how long do you need to go without
power coming in?
That determines the size of your array, the types and number of
batteries you need, and the depth of the batteries.
One thought off the top is that PV solar and wind make a good combo *if*
you have enough constant wind. Not everywhere has it. But I'm finding
that my little 1.8kw array is putting 6+kw per day into the grid on
Equinox, that's a starting point for calculations (but I have a lot of
trees). And a 48v bank of T105's with an estimated ah capacity of 150ah
is about 7,000 watts of power total.
You are probably going to want to start with something like L-16's for a
house; T105's are probably too small, esp in 48 volt banks.
There are a lot of books and articles. Start with Home Power.
Chris