I have a string being installed of six 390W panels split 50/50 between an East and a South facing aspect. I queried this with my installer (a national company in the UK) who suggested fitting three Tigo TS4-A-Os to this string.
My understanding from what reading I can find, is that this would require a Tigo optimiser per panel to allow both aspects to produce without being hampered by the shaded aspect. Am I missing something whereby just 3 Tigo optimisers could be used across these 6 panels? My installer insists they can.
Many thanks for any advice,
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