In modern day developed countries, there is an emphasis on creating sustainable energy. Although it costs more initially, the investment in future generations generate better returns in the long run.
Recently, Japan has approved a handful of solar projects making it the largest solar market in the group in the coming year. I think this is a smart move especially after the nuclear meltdowns as a result of the earthquake is a common occurrence. However, it should be done with caution. Other than being costly, solar panels take up a lot of space. Perhaps the land could be better utilized. Furthermore, the repair cost on solar panel is quiet expensive as well.
I would personally double check the projected financials in the long run and set money aside in case the projects take a turn for the worse such as earthquakes damaging the panels. Also, information systems can be utilized to create statistics. By analyzing this data, improvements can be made to maximize efficiency.