G'day, I have a customer that we installed a Fronius 5kW AC Coupled to a 5kVa Multiplus in an off grid install. I've also DC Coupled in a SmartSolar and connected to SunGel Carbon Gel batteries.
The customer is now experiencing his AC powered clocks running fast and I suspect it is caused by frequency shift as the Multi controls the Fronius.
Is there a solution to remedy this issue? Thanks in advance!