23. Sustainability System Directed Sustainability Graph – goal is to build ‘capital’ in all four dimensions! Social Natural Economic Self
24.
Editor's Notes
Wind power is real power. Germany and Europe have made significant investments in wind, where it can supply as much as 40% of electrical demands (peak power). Using methane as backup / peaking power and wind as a primary source. The cost of wind makes it very attractive – new GE wind turbines with 3.6 MWhr sell for 3.6 million dollars, or roughly $1 a watt, and at least 5 to 10 times cheaper than solar installations.