There are practical issues with it, but it's possible. The question is EROI or Energy Return on Investment. Do you get more energy from it than it took to make it, which unfortunately is not there yet. Shrinking it down to fit into your backyard is an exercise left for the reader.
And that's assuming they are sunny days.
But yes, it needs to be sunny if that’s going to be pure solar.
I'm 100% off grid on solar in the middle of nowhere. My panels could burn up, get hit by hail, get searched by law enforcement, flooded out, eaten by mice, stolen by miscreants, abducted by aliens or buried in snow. And of course in the event of a volcano they are probably not gonna function well.
So they are of course totally unworkable in events when the power grid is down.
But I like using them and they've been reliable so far...