Solar systems get sold on how little maintenance they need, and that’s mostly true — there’s no engine, no oil changes, nothing burning fuel. But “low maintenance” isn’t the same as “no maintenance,” and the handful of things that do need attention are the difference between a system that performs well for 25 years and one that quietly loses output for months before anyone notices. Here’s what actually matters. Panel cleaning — more important than people assume Dust, Nairobi’s dry-season harmattan-like haze, bird droppings, and in some areas, proximity to dust roads, all build up on panel surfaces over time […]