PV Tracking billboards- cool [RE-wrenches]

[Ray Walters]

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Hey I won't stop you Travis, I'm planning on doing the same thing at my 
shop. What a billboard! and who cares about maintenance when your drive 
time is 0 secs. The only problem is your customers will see how cool they 
are and want one too.
As far as MTBF, I've done enough repairs to probably 
offer  statistically  valid info. (just kidding)
My experience is about what someone else here said : about 18 months MTBF. 
Lightning stomping the controller is usually it.
BTW, I've got a Wattsun at my old house that has lived without trouble 
since 1998. Then a kid ran a solar car into the tilt drive at about 10 mph. 
Bent the crap out of it, I straightened it out, replaced the actuator and 
its back in action. I think the key to success on this install is that I 
grounded the array directly to a 400 ft steel well casing for lightning 
protection.

Ray


>  Again, I think trackers are
>really cool. We even plan to install one of the Wattsun dual axis monsters
>(somebody stop me, please) at the new shop we are building right now
>Travis Creswell
>Ozark Energy Services, Inc.
>
>
>

Ray Walters
ray at solarray.com
President, SolarRay, Inc.
NABCEP Certified Solar PV Installer
BS Mechanical Engineering, UT Austin 88
Returned US Peace Corps Volunteer 

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