.@heronpower CEO Drew Baglino on the 40-year streak that kept US electricity flat while the economy grew, and why it just ended: "We benefited from energy efficiency from the '70s... until like the 2010s. You saw efficiency everywhere... And all of that energy efficiency more or less negated the growth in energy services." "The energy services were growing over time in the United States, but the net electricity delivered to accomplish those energy services stayed basically flat. And the same…