Holt, I have no experience with this but Unirac just announced a ballasted ground-mount system for commercial / utility systems: http://www.unirac.com/mounting-solutions/isys.php
<http://www.unirac.com/mounting-solutions/isys.php>Best regards, Nik -- Nicholas Ponzio Building Energy 1570 South Brownell Road Williston, VT 05495 t: 802-859-3384 x15 f: 802-658-3982 www.BuildingEnergyVT.com "Building Solutions for a Sustainable Future" On Wed, Jul 8, 2009 at 3:33 PM, <[email protected]> wrote: > Situation: > ROCK - limestone ledge on cliff. Surface is relatively smooth with little > to no grade in a 30' x 30' area. Basically a large slab of limestone about > 4' thick. > Question: > Anyone have experience with some type of ballasted mount system for either > fixed or tracked array in this type of environment? Boring holes will be > very expensive. I've seen the precast bell shaped ballasting on commercial > projects, wondering if there is a way to do that on residential size array > of 5 to 10kw. > Thanks in advance. > >
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