We've welded a flanged plate to the bottom of the pole and then set
epoxy anchor bolts into the rock. Another option we've tried is drill a
8" hole into the rock to get the base of the pole a foot down into the
rock and then poured a reinforced block of concrete on top of the rock.
smaller holes were drilled into the surrounding rock to attach the
concrete to the rock as well.
Ballasted systems could be an option, as well as low profile racking
with multiple anchor points. Not fun but it can be done.
Ray Walters
On 4/12/18 7:27 AM, Aaron Mandelkorn wrote:
Hi all,
I have a customer that requires a mounting option I have yet to
encounter. His site sits on top of of a massive hill of granite. It
is relatively flat. Are there any mounting options that could work
here? We are only talking about (12) to (16) modules for an off grid
array. Is there anything that can bolt to rock? I typically use dpw
or Mt solar pole mounts but can't imagine how these options could
work. Any thoughts?
Aaron Mandelkorn
President / Founder
Renewable Energy Outfitters
www.reosolar.com <http://www.reosolar.com>
Off Grid Depot
www.offgridnow.com <http://www.offgridnow.com>
970-596-3744
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