Howdy, y'all. I'm looking into getting my house off grid. Currently, I spend more in fees and the minimum charge than I do in the actual electricity I burn. Most months, I'd pay about $45 if I pulled the main breaker for a month. Most months my total bill is about $85. It's a bit more in winter, as much as $100-130, maybe. I heat my house with space heaters at the moment, so that could be even lower. Anyways, I live in a wooded area, and the only good place to mount panels in full sunlight is on the roof of the 2nd story. I have joint issues, so I won't be able to get up there to clean them off very often. Fortunately, I live in Alabama, so snow is rarely an issue - maybe once or twice a year on average. There might be an issue with tree sap and bird crap, however. How often will I have to get up there to clean those panels off? Thanks.