I live in Germany and my 12 kwp solar produces more energy than I need throughout the year for a house and a family of four including charging my car. Even if it would produce only 6 months a year, it world be a decent Investment and I get more like 9 months worth barely any grid supply out of it. The only reason we don’t go full offgrid is that the wood stove for heating in winter would be much more expensive to build and run than buying energy from the grid. What the hell are you talking about?

By the way: the number of power cuts I have experienced in the past 10 years is 1, because some idiot rammed a powerpole somewhere. The number of times I read about a power cut in the USA somewhere is more or less daily.