[rescue] SGI Challenge L systems available in Denver

Patrick Giagnocavo patrick at mail.zill.net
Fri Sep 17 10:03:57 CDT 2004

On Fri, Sep 17, 2004 at 10:57:00AM -0400, Nathan Raymond wrote:
> What's really needed is a large AC->DC converter in the basement and new 
> DC outlets alongside AC outlets in houses, and devices that work with the 
> new DC outlets.  A large AC->DC converter can be made much more 
> efficiently than a small one.  The net energy savings would be *enormous* 
> if the US switched to a solution like this.  The amount of power lost on a 
> national scale to low efficiency AC->DC conversion is somewhere on the 
> order of 30-40% of all power.

I was doing some reading on solar power, and this is a hot topic in
that community.  Basically where feasible run DC straight from the
battery bank, only using AC where necessary.  

The problem with DC is its perceived danger, and that you need thicker
wires for running large loads.


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