> All told, it takes about 3460 kilowatts per acre-foot to pump water from Northern California to San Diego; Does the author mean 3,460 kilowatt-hours? > Lamb

> All told, it takes about 3460 kilowatts per acre-foot to pump water from Northern California to San Diego; Does the author mean 3,460 kilowatt-hours? > Lambert showed me a series of pumps at the Carlsbad plant that collectively exert seven thousand horsepower of energy (eleven hundred pounds per square inch of pressure) Holy hell, how am I supposed to reason about any of these numbers? The mix of units and ignorance of power/energy differences makes the numbers completely useless to the reader. Near the beginning of the article, the daily volumes are discussed in terms of millions of gallons, but later on, acre-feet is used. Sorry if this comment is too ranty...