Ben Welter - Tuesday, June 09, 2015
Greentech Media's latest "Energy Gang" podcast includes a segment with Skip Laitner, an economist who says we've been measuring energy productivity all wrong. As measured by all energy available for use, he said, the U.S. economy is running at only 15 percent efficiency.
"Whether it's light, whether it's thermal energy, an industrial process, whether it's powering up the Internet or maintaining a cold beer in the refrigerator, what is actually going on as work, to provide the cooling, to provide the heat and provide the light?" said Laitner, right. "When we [measure energy productivity] that way we find that we're wasting more than 80 percent of that energy, and that's nothing but a set of costs that really clamp down on the economy."
In another segment, starting at 25:30, the group talks about the Energy Storage Association's expo in Dallas last month. Among the takeaways: Ice-based storage and phase change material are gaining traction in the discussion of energy storage.
"Storage is everything from batteries all the way through ice storage and thermal storage units, all the way through to some of these phase change materials and other things," said energy futurist Jigar Shah. "I was pitched a couple times by folks who had much different definitions of storage, which I thought was fascinating."