On Fri, 23 Jul 2010 17:37:24 -0700, Rich the Cynic
wrote:

He's mig welding on solar cells? Damn!

I've been doing various kinds of welding on solar and wind power for
about 15 years.
http://www.citlink.net/~wmbjk/images...28Small%29.jpg

That's a lot of electricity!

Not really. I probably average about 4kW when welding, but that's
usually not for very long. An hour of "welding" tends to be about 55
minutes of fitting, jigging, grinding, etc. 5 minutes at 4kW and 10
cents per kWh is about 3 cents worth. Most days when I'm welding, the
overhead lighting, grinders, saws and air tools use more energy.

Wayne