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FB.
What would you expect to be the average useful lifespan of a solar PV inverter from respected manufacturers such as SMA, Fronius, Powerone?
Options:
5-7 years.
8-10 years.
11-14 years.
15-20 years.
Over 20 years.
Don't know.
Options:
5-7 years.
8-10 years.
11-14 years.
15-20 years.
Over 20 years.
Don't know.