It just shows you that unless the financial side makes sense, no matter how good an idea something is, it's unlikely to happen. Incentives from the government help in driving deployment of these projects, but really it needs to stand on it's own two feet. What I found really interesting about this short study is how important picking your market and location is when margins are small i.e. large companies that want to show off their green image and in states that offer the largest financial incentives.