How to choose and operate solar power generation that is profitable even with the risks by prefecture

*This is the longest video so far, but it is the one I want you to watch the most!! There are many people who recommend solar power generation, but there are also many who reject it. In most cases, most people recommend or reject it based on their image alone, and I have never seen anyone express their intention after quantitatively calculating the return they should get and the risks they may incur. If you don't know how to calculate it yourself, you can only make a careless decision like "I won't post it because Mr. XX rejects it" or "I'll post it because Mr. △△ says it's good". As for the return, it can be calculated quite accurately, including the power generation efficiency of the solar panels, unless the country goes bankrupt. On the other hand, the calculation of risk requires a lot of personal prediction. I made it so that you can change the numbers yourself for this "personal prediction of risk". I explained how much you could buy solar power generation by prefecture and manufacturer by adding, subtracting, multiplying, and dividing, so that you can decide whether it is better or not to post it.