Permanent Magnetic Generator Help! What is this?

Hey guys,
I want to build a DC Permanent Magnetic Generator that will generate electricity which I want to use to power things in my home.
I was reading these instruction here: http://www.scoraigwind.com/pmgbooklet/it pmg.pdf
That thing puts out 180 watts, enough to light up 2 light bulbs, not enough to power a house, not by a factor of a hundred.
This is basically an alternator. You can get one from an auto junk yard. The wind turbine turns the alternator,
