The Case For Investing In Energy Productivity | mckinsey.com

Unless there is a shift in world energy policies, global energy demand is set to accelerate, putting increasing strain on the world economy and the environment. Yet additional annual investments in energy productivity of $170 billion through 2020 could cut global energy demand growth by at least half—the equivalent of 64 million barrels of oil a day or almost one and a half times today’s entire U.S. energy consumption.