MIAMI, July 14 /PRNewswire-USNewswire/ — Karl W. Miller, a senior energy executive and institutional investor, today issued the following summary ratings through his advisors, regarding the state of the US renewable energy. Mr. Miller has issued a Sell/Short rating on the US renewable and green energy sector.The Industry Rating Rationale is driven by fact that the renewable industry is still very immature in the United States. The public companies in the renewable energy sector will continue to