Roasting is important to not only bring out the chocolate flavor but to kill all the nasties that came from the farm, from the cocoa processing center (or co-op), from the warehousing, from the shipping on the boat in open jute bags, from the transport on the semi to the chocolate factory in the US, etc. There are a million ways that even clean cocoa beans can get contaminated even if they left the farm in great condition. While I've made raw chocolate as an experiment for myself (and it is part of my job afterall), there is no way that I'd ever release the chocolate on a commercial basis without having each and every batch go through extensive microbial testing something that few raw chocolate companies do.
I own a chocolate factory so I know just a bit about this subject.
The solar panels are "green" technology.
I heard through the grapevine that the solar panels narrowly beat out using wind power but they were worried about the wind encountered at such high velocities and the possibility of killing birds.