Exhilaration swept through the energy efficiency industry as city after city, state after state and nation after nation set aggressive energy saving goals over the last several years. But with target dates nearing in certain jurisdictions, a more sober attitude now permeates. Some governments are asking: Are we reaching too high? A global report issued this week by PwC, which looks into the minds of power industry executives, suggests the worry may be justified. Called “The shape of power to come,” the annual report emerged from interviews with senior executives at 72 power companies in 43 countries. It found that a good number (45%) of executives are dubious that we will reach energy efficiency targets by 2030.