A new study from Pecan Street has found that most solar PV systems only experience minor issues and that solar PV is largely maintenance-free. But the minor issues can often impede power production for days, weeks or even longer. In most cases, the homeowners had no idea there was a problem. “It’s a minor issue. But by not detecting it, it becomes an issue where you’re losing value on your solar panel even though it’s a $5 issue to fix,” said McCracken, CEO of Pecan Street.