I havent quite figured it all out for myself just yet, esmith, care to help me understand the slide just after the one you reference about 3000kwh for water to LA. It says 6900kwh for San Diego, but it calls it energy intensity, which I have not had time to wrap my head around. At first glance it looks like an acre foot of water to San Diego is something more like 6000kwh/ac foot.
“Energy intensity” is all energy spent on that water before it’s consumed. It includes energy spent on heating water that goes into showers or dishwashers, for example. That slide basically says that it takes 2040 kwh to get an acre-foot of water to the customer, and then that customer will spend an average of 3900 kwh on that water to heat it, or do anything else he wants.
