I have fail commissioning with utility because I have 0.7 Vac on the grid output lugs between L1-L2. Utility need to see 0Vac. EG4 Tech support said it's normal and I'm about 4 hours waiting toi have an EG4 manager to call me. I install many other brand and i never see voltage on the grid lugs when it's disconnect fron the utility. Should be a basic UL1741 not to backfeed the grid. any suggestion or any other experiance the same problem?