Tracstar is as good as any of them, however I would not track this array unless
it is dedicated to a pumping load or MAYBE grid tie on a PBI. My issue is that
PV is too cheap now to do much in the way of justification for the added
expense and reliability issues. We are so lucky to have energy systems that can
produce power with no moving parts and have an extremely long life that I just
cannot see intentionally adding complex and expensive moving parts to undo this
elegance. Closely look at your math and see just how close the economics are
considering PV can be retailed for likely under $2.20/W. Lastly and perhaps
most importantly, you should consider tracker service life. With modules
lasting 50+ years you surely will have to replace the tracker well before the
array, if not twice or more. Personally, I think trackers lasting more than
15-20 years w/o significant servicing is not realistic. Not much in the solar
world more aggravating then seeing the sun shining on the BACK of your array at
almost noon! It seems that we spend a lot of time trying to talk customers out
of sexy notions like trackers, battery back-up grid tied systems and wind where
there is little. I think trackers can have their place, but not many! And this
is coming from a guy w/a tracker for 20 years and I refuse to remove it,I just
keep rebuilding it (they are indeed very cool when working). All expansions
have been fixed mounted.
>From the Solar, Wind and Hydro powered office of Jeff Oldham/Regenerative
>SOLutions
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