BandsYieldSpare is a handy toolkit that helps you run solar sites with less guesswork and more uptime. It checks MTBF and spare stock to show if you can stay online, and flags when parts fail enough to back a warranty claim. It cuts alert noise so you only see real issues, and sets simple, smart limits for catching odd behavior. It tracks slow performance drop over time and gives a clear range for how sure that trend is. It tells dirt-related loss from true aging, so you know when to wash and when to plan fixes. It shows the hit from mixed module bins, string mismatch, and tracker misalignment in plain numbers. And it helps pick a clean DC/AC ratio for inverters, balancing cost, clipping, and yield for the best payoff.