Runolfsson35
New Member
- Joined
- Mar 12, 2022
- Messages
- 4
I have string inverter and single string of panels plus installed tigo optimizer into panel which gets occasional shade from chimney however the results are weird.
To my understanding tigo optimizers work by raising panel current (in order to match with rest of string current) and lower panel voltage. What happens in my installation when the shade on particular panel comes in is the opposite: the current drops and the voltage raises! Obviously that results in poor power output for the whole string as the current for the whole is the lowest one from all panels.
Does my tigo work correctly then or maybe it doesn't work at all? I read about investigation by Aussie installer who found entire batches of tigo come with pre-installed faulty firmware which makes them no-op (unless you connect them with their monitoring system and upgrade firmware). Could mine be affected as well considering above symptoms? Or is it normal behavior and I'm only misuderstanding how it works?
To my understanding tigo optimizers work by raising panel current (in order to match with rest of string current) and lower panel voltage. What happens in my installation when the shade on particular panel comes in is the opposite: the current drops and the voltage raises! Obviously that results in poor power output for the whole string as the current for the whole is the lowest one from all panels.
Does my tigo work correctly then or maybe it doesn't work at all? I read about investigation by Aussie installer who found entire batches of tigo come with pre-installed faulty firmware which makes them no-op (unless you connect them with their monitoring system and upgrade firmware). Could mine be affected as well considering above symptoms? Or is it normal behavior and I'm only misuderstanding how it works?
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