Understanding the Water-Energy Nexus

In a long read published in Places, Austin Troy delves into the complicated nexus between the need to increase water resources and decrease energy use, which are both exacerbated by, and exacerbate, climate change.

1 minute read

January 29, 2012, 9:00 AM PST

By Jonathan Nettler @nettsj


Troy explores in depth the water needs of Southern California and Arizona, and the power hungry infrastructure needed to deliver that water. In the process he delivers some startling information.

For Southern California, "to get from the Sacramento River to the crest of the Tehachapi Mountains, one year's worth of water requires just slightly less electricity than the combined amount used by all residences in the city of Los Angeles."

"But despite modern materials and engineering methods, the water delivery system of the American West is comparatively ephemeral - for the sole reason that it depends so heavily on energy. We have built major cities in response to the engineered availability of water, and we did so in an era when energy was cheap and apparently plentiful. But ultimately the price of energy might be as destructive to our public water supplies as invading barbarians were to Rome's."

Monday, January 23, 2012 in Places

"Planetizen federal action tracker" logo superimposed over black and white image of US Capitol dome.

Planetizen Federal Action Tracker

A weekly monitor of how Trump’s orders and actions are impacting planners and planning in America.

October 28, 2026 - Zachary Whalen

A car drives through a puddle, making a large splash. Rain pours down.

California plans to bury El Niño’s downpour

If the state plays its cards right, it may be able to store a billion acre-feet of El Niño’s water in aquifers.

October 28, 2026 - Grist

Lake Powell with much of the water evaporated.

Desperate measures: Advocates weigh draining Lake Powell to fill Colorado River

Draining the reservoir could reduce evaporation losses by a couple hundred thousand acre-feet.

October 30, 2026 - Yale Environment 360

A Firefighter sprays water from a hose at a tall blaze.

US buildings threatened, destroyed by fires set to triple by 2060

Researchers found a high fire risk for socioeconomically vulnerable neighborhoods in the American West.

November 4 - Inside Climate News

People cross a crosswalk in Los Angeles.

LA residents may be allowed to paint their own crosswalks

Councilwoman Katy Yaroslavsky put out a motion instructing the Los Angeles Department of Public Transportation to study the feasibility of allowing volunteers to paint crosswalks.

November 4 - ABC7

Two women walking on the sidewalk in Dallas.

Dallas moves to overhaul its zoning code

The city's zoning reform will allow more multi-family and mixed-use developments.

November 4 - Yahoo News