All, The utility(Flathead Electric Co-op) has recently completed automatic meter reading using a power line carrier for all co-op members. I will give them a call to find out the type and frequency of signaling. The state 104 has been occurring within 10 minutes of connecting to the grid. Perhaps the IG uses the zero crossing and is confused by the meter reading signal. I have talked with Fronius and it looks like they may send an IG+ as an upgrade. Perhaps the IG+ does not get confused by meter reading signals. Fingers crossed. If it does go into state 104 maybe opening up the frequency window will help. We have no other inverters on this utility for comparison and have had no feedback on the hand full of grid-tied systems out there. Thanks for the valuable input, Jeff ![]() Jeff Wongstrom NABCEP Certified 406.291.3416 On Oct 8, 2012, at 7:38 PM, Kent Osterberg wrote:
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