David Clamage & Tim Huckaby

Financing Energy Efficiency Projects

Buildings use more than 70 percent of the electricity generated and more than 40 percent of the natural gas used in the United States. The existing U.S. building stock is extremely energy inefficient. The DOE's Energy Information Agency estimates that 30 percent of energy used in commercial buildings is wasted. In a 2009 report, McKinsey & Company estimated that energy savings worth $1.2 trillion are available if the full amount of economically viable and commercially available energy efficiency projects is implemented in the U.S. through 2020. Achieving these savings would require an upfront investment of $520 billion.