net metered system w/generator [RE-wrenches]

[Kirk Herander]

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Group,

I'm desighing a system with 10 kw peak of pv and multiple Sunnyboys. The
owner has an existing 30 kw Kohler generator w/ ATS that transfers the main
panel to generator during a power failure. What's the best way to disconnect
the backfed Sunnyboy circuits from the panel during a power failure? I don't
want the Sunnyboys to think generator power is the grid and refuse to
disconnect as a result, attempting to put solar AC into the panel &
generator. There are easy contactor / relay senarios of course, but do any
of you have a preferred method? or is the Sunnyboy smart enough to limit
output if the power cannot be "absorbed" anywhere?

thanks for your help, Kirk

Vermont Solar Engineering
Kirk Herander
North American Board of Certified Energy Practitioners
Certified Solar PV Installer(TM)
Xantrex Certified Dealer Charter Member
NYSERDA-eligible installer
Vermont Solar and Wind Partner

PO Box 697
Burlington, VT. 05402
www.vermontsolar.com
www.backeastsolar.com
800.286.1252 - 802.863.1202
fax 802.863.7908

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