Maintaining PV Modules
Solar panels require little maintenance which consists on hosing them about 2 to 4 times a year. The more dust you have in your area the more you want to clean as they lose around 7% of their output if dirty. You want to make sure there are water lines that are close to the system.
Inverters are also almost maintenance free. Some regular cleaning will do the job. For a fraction of what they cost now you will have to replace them as they have a life of about 15 years.
The hardware is specially made for outdoor applications from aluminum, stainless steel, or galvanized steel. It will last you for years.