Not buying it. Most corporations are rational actors when it comes to shareholder value, and with all the attention given to sustainability and the amount of goodwill available by engaging with it, there’s has to be a financial reason why more haven’t engaged.
I suspect you have a problem of scale or a problem of assumptions. Your article aggregates the net possible savings by industry, but doesn’t break it down by company. It’s possible that to an individual corporation, the savings is either negative or such a small contributor to the bottom line that it’s small potatoes — — there’s more value to the bottom line by taking some other action.
The other possible problem is that the corporations do these analyses as you have, but they use more different, and more conservative assumptions as to the financial value that can be unlocked . Using unconservative assumptions for major projects is a great way to get yourself fired; hence, corporate facility decisions tend to be made conservatively.
I guess I’ll add a third one: not everyone is comfortable with the “innovative financing” aspect. Solar City got smashed by Jim Chanos calling out their financing practices and shorting the stock; everyone from Elon Musk on down attacked Chanos (who is one of the most sucessful Wall Street short sellers — — EVER) and it turned out that Chanos was right. Food for thought, there.