What maintenance does a solar panel system actually require

Solar systems are remarkably low maintenance compared to other home investments. Most people worry about upkeep unnecessarily.
Regular cleaning
Dust, pollen, and bird droppings reduce output but rain naturally cleans panels in most climates. If you live in an exceptionally dry area or notice visible buildup, annual cleaning with soft brushes and water helps. Avoid pressure washers that damage seals. Many homeowners skip cleaning entirely and see no problems.
Professional inspection and inverter replacement
Have an electrician inspect your system every 3 to 5 years to check wiring, connections, and hardware. Inverters typically last 10 to 15 years before needing replacement. This is the most common maintenance expense. Everything else fails rarely. Modern systems have remote monitoring that alerts you to problems immediately. Don't pay service companies for unnecessary check ups or cleaning. If your monitoring app shows normal output, your system is fine.