How should solar installers prepare for inverter failure?

By Kelsey Misbrener Credit: Fronius
As inverters get smarter and smarter, installers should plan ahead for inverter failure in older, lower-voltage projects. Most solar systems these days use 1,000-V or 1,500-V strings, a considerable jump from the 600-V strings of the past. Richard Baldinger, group leader of marketing and sales support at Fronius, said the inverter is often the first part of a project to need maintenance or replacement.
“We have to have realistic expectations and realistic promises on equipment endurance,” Baldinger said. “We all know it’s power electronics, and the inverter is the most stressed component of the system.”
Inverter manufacturers take different approaches to

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