I see uninformed people arguing a subject based on what they read, but obviously nobody here has experienced living with solar power. Some here,(the ebike dude for one) are simply liars.You are hearing a 30+ year veteran of living off-grid right here.
The literature that the industry puts out is filled with outright lies. Without trying it yourself, you really have no way of knowing. Theoretical data is simply not the same as real world experience.
People like me are rare, but we are around.
The most important point to be made shouldn't be what battery technology is best, or how long panels last or how many cloudy days there are.
The most important point should be how to reduce power consumption. In other words, conservation.
Most of you poor fools are tied to a power grid, and for political reasons will never be allowed the opportunity to try anything other than being tied to the grid.