August -
I've seen this scenario and it is not pretty like William suggests. >From what I've seen, the problem is not so much the power of the PV being more than the generator, but moreso if the 1) generator is synchronous or non-synchronous with the inverted AC (sine wave) and 2) if the loads are less than the PV. The generator will 'create' the voltage and run even if there are zero loads. The inverted AC (from PV) wants to push current onto the 'local grid' and if there are no loads (nor heat sink diversion or batteries to charge) then the current will try to backfeed the generator. My recommendation is to get a critical loads panel for the generator only back-up, or go grid-tie with back-up using a Sunny Island, or the like, that make the switch seamless during an outage. Greg Seelhorst Designer/Project Manager NABCEP Certified Solar PV InstallerT POSITIVE ENERGY, Inc. 510 S. Main Street Las Cruces, New Mexico 88001 Cell: 575-650-1883 Office: 575-524-2030 FAX: 575-915-1788 <mailto:g...@positiveenergysolar.com> g...@positiveenergysolar.com www.positiveenergysolar.com <http://www.positiveenergysolar.com/> http://www.positiveenergysolar.com/images/stories/PE-logotype.png
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