Rick H Parker
Registered: 1489180564 Posts: 789
Reply with quote #11
If they do things there the way they do where I
came from, " " could mean my brother's construction company gets the tracker contract. better value __________________ Rick H Parker Kansas, USA Electronics Engineering Technologist
Registered: 1388591029 Posts: 2,826
Reply with quote #12
Bear in mind you're looking at a billion-dollar outfit with several BIG arrays and a fair amount of experience. I'm pretty sure they've done their homework. From the photo, one rack may hold 50 panels, and it wouldn't take much to make it moveable. The way they're arranged one drive unit could move 20 or more racks, (1000 panels).
The wiring and connections have to be maintained anyway, and they already have the staff on hand for that. So I suspect the additional investment is relatively minor. If a single-axis tracker represents a 20% gain that's a fair chunk of change, even at 9c/kwh. That said, I still don't think a tracker would be practical for a home-sized array. __________________ Solar is like the wind. It may be free, but putting it to work isn't! Willie, Tampa Bay
Registered: 1371329966 Posts: 158
Reply with quote #13
These plans might give you a few ideas.. Although I have to say that adding a few more panels to a fixed array would be far more user friendly, not to mention cost effective!
In have a friend who put up a 40 off 250w panel array on tower/dual axis tracker bought from a German company, it has been nothing but trouble, finally the top rotating gearbox started making 'graunching' noises and needed replacing after only 3 years, turning into a major hassle, all panels off, get a crane in to lift gearbox panel mount struts etc. I look at my fixed panels and think "No moving parts up there"!!
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