IEA member countries saved enough energy to power Japan 2015 investment in efficiency estimated to be $221 billion The world is squeezing more from the energy it uses even though markets are awash in cheap oil and natural gas, a report from the International Energy Agency showed. Energy intensity, which measures the amount of fuel consumed per unit of gross domestic product, fell 1.8 percent last year, triple the average rate over the past decade and more than the 1.5 percent reduction in 2014, the Paris-based IEA said Monday. Investment in efficiency measures totaled $221 billion last year, about 66 percent more than was spent on building conventional power generation. The findings will help nations meet their ambitions of reducing greenhouse gases while limiting energy costs and spreading electricity to more of the poorest communities. The IEA has been prodding governments to put efficiency at the heart of their […]