All:
Solar Edge sent one of their engineers to inspect my neighbors solar
panel installation that's been causing RFI since August of 2016. They
tweaked the RFI suppression that was installed in July of this year
which did nothing to reduce the noise any further.
They also shut down the Optimizers via remote recently to see what
effect that might have. There was little change because the switching
power supplies that power each Optimizer remain active when the solar
panels are in sunlight. The power supplies would need to be disconnected
to shut them off.
The first attempt to solve the problem took place in Feburary of 2017
when they swapped out the optimizers. The attempt that took place this
July was to add ferrite to each cable coming off each optimizer.
The ferrite did have some effect, but the cables were not looped through
the core: they only made one pass through it - see attached image.
Solar Edge has obviously been slow to act given the fact that the noise
began the day of the installation in August of 2016, It's only in the
last few months have they been actively seeking to solve the problem.
They plan on taking more action soon so I will keep the group posted.
Tony -K2MO
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