Tracker efficiencies, etc. [RE-wrenches]

[Joel Davidson]

I sold several hundred 4 and 8 module Zomeworks trackers from 1982 to 1986. All
went to U.S. customers. All were seasonally adjusted from 45 degrees to 15
degrees. All performed about the same. 10% to 15% increased energy in winter.
40% to 50% increased energy in summer. Average annual increase 25% to 30%. If
you like how trackers look (I do) and have the land (I don't), then passive
trackers are the way to go. They pay for themselves on day one compared to a
fixed mount. I think Jim Allen (Solar Jack) and Windy Dankoff know more about
trackers than anyone except Steve Baer.

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