Billy, I think you are being naive about corporations intentions... DM, I think you are being too dan-brownesque.

I think its a mixture of both of these things, its not that I think that the "evil corporations" have the technology to produce clean energy and they are hiding it in their evil-basement-cubby. But I do believe the it is not in the corporations interest to invest money in it, when it would most likely take many years to develop and test and billions on top of billions of dollars invested before a single dollar of profit is made.