I have a feeling that this is not an investment to Buffet, but rather a means for him to influence the market. People now follow his investments religiously, and an investment like this in to solar could spur a lot of people to make similar capital investments.
In effect, Buffet is now making a demand for green companies for copy-cat investors to invest in.
In effect, Buffet is now making a demand for green companies for copy-cat investors to invest in.