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Joel, Use a Magnum PAE system for this. Their MS4448PAE with current firmware has frequency-shift capabilities, to allow control of the Enphases' output when the grid is down. The GT output should not exceed 80% of the Magnum(s) rated output; stacking is allowed here if needed. They still recommend a dump load as a fail-safe, although they're working on a diversion load accessory. I think there's technical material on Magnum's website showing how to do this. Allan
Allan Sindelar
al...@positiveenergysolar.com NABCEP Certified Photovoltaic Installer NABCEP Certified Technical Sales Professional New Mexico EE98J Journeyman Electrician Positive Energy, Inc. 3201 Calle Marie Santa Fe, New Mexico 87507 505 424-1112 www.positiveenergysolar.com On 4/13/2012 6:07 PM, Joel Davidson wrote: Wrenches, |
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