Episode summary

The Hoover Dam is About to Lose 70% Of Its Power

Behind The Markets Podcast · · 7 min · Hosts: Dylan Grice

The Hoover Dam is About to Lose 70% Of Its Power – Behind The Markets Podcast

Summary

The host argues that the Hoover Dam is heading toward a major loss of generating capacity as Lake Mead falls toward 1,035 feet above sea level. Once that threshold is crossed, 12 of the dam’s 17 turbines would be forced offline, cutting power output by as much as 70% and threatening the Southwest grid that has long benefited from cheap, clean hydroelectricity.

He says the implications reach cities such as Los Angeles, Las Vegas, and Phoenix, and he frames the situation as both an infrastructure problem and an energy-security issue. To slow the decline, the US Bureau of Reclamation is described as using increasingly improvised water-management measures, including holding back water in Lake Powell to protect Glen Canyon Dam.

The host then turns to geothermal as the most practical substitute. He argues that geothermal is continuous base-load power, unlike intermittent solar and wind, and says it already supplies almost 10% of Nevada’s electricity while generating twice as much electricity as the Hoover Dam there. He adds that major companies, including Google, Nvidia, Microsoft, and Berkshire Hathaway’s MidAmerican, are moving into geothermal deals because it appears faster and cheaper than nuclear.

Key takeaways

  • The host says the Hoover Dam could lose 70% of its power capacity once Lake Mead falls below 1,035 feet.
  • He argues the Southwest grid, including Los Angeles, Las Vegas, and Phoenix, faces a serious reliability problem if the dam’s turbines shut down.
  • The host says the US Bureau of Reclamation is using Lake Powell releases as a stopgap, calling it a kind of "whack-a-mole" response.
  • He argues geothermal is the best replacement because it provides continuous base-load electricity, unlike solar and wind.
  • The host says Nevada already gets almost 10% of its power from geothermal and that the state’s geothermal output already exceeds the Hoover Dam’s.
  • He says hyperscalers and Berkshire Hathaway are pursuing geothermal because it looks cheaper and faster than nuclear.

Notable quotes

“The Hoover Dam is set to lose 70% of its power generating capacity, which threatens really the energy grid of the Southwest”

— A speaker on Behind The Markets Podcast at 0:25

“once the water level drops below 1,035 ft above sea level, 12 of the dam's 17 turbines are going to be forced to shut down”

— A speaker on Behind The Markets Podcast at 1:15

“they really face dramatic issues with getting or tapping into that grid cuz you know, you see a 70% drop in electricity”

— A speaker on Behind The Markets Podcast at 2:02

“the US Bureau of Reclamation has resorted to a bunch of what look like desperate kind of water management maneuvers”

— A speaker on Behind The Markets Podcast at 2:30

“geothermal is basically continuous, reliable base load electricity”

— A speaker on Behind The Markets Podcast at 3:38

How the episode opens

Good morning. This is Dylan Jovine with Behind the Market. Happy Monday.

Today is Monday, August 17th. Today, I'd like to talk about the Hoover Dam. I read an article in Popular Mechanics recently that talked about the crisis facing a lot of states in the Southwest because of what's happening with the Hoover Dam.

And a lot of folks don't really understand this. The Hoover Dam is set to lose 70% of its power generating capacity, which threatens really the energy grid of the Southwest. And it really, really highlights a couple problems.

And I have some notes here that I'd like to talk to you about. And you know, the Hoover Dam, this is kind of a big thing for us, you know. My goodness, this icon of American infrastructure is really facing an unprecedented crisis.

And you know, it's being driven by Lake Mead. Basically, the water levels have plummeted towards basically this critical threshold of 1,035 ft above sea level. This is kind of what in Popular Mechanics, I think they referred to it as the slowest moving train wreck in history.

But basically, once the water level drops below 1,035 ft above sea level, 12 of the dam's 17 turbines are going to be forced to shut down because they basically were not designed to operate in such low water conditions. And it's, you know, kind of a sad thing to hear or read about. It's really kind of troubling.

It speaks to a lot of things, really. But it's really going to reduce the dam's power generating capacity by upwards of 70%, which is kind of a big deal. And it really threatens, you know, a lot of states that depend on this.

A lot of cities, really. I'm thinking Los Angeles, Vegas, Phoenix, cities like that.

From the episode’s captions: roughly the first two minutes, lightly cleaned. Keep watching on YouTube →

Topics

  • hoover dam power loss
  • lake mead water levels
  • us energy security
  • geothermal power expansion
  • ai power grid competition

Companies and tickers mentioned

  • NVDA
  • GOOGL
  • GOOG
  • MSFT
  • Nvidia
  • Google
  • Microsoft
  • MidAmerican Energy

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Summary, takeaways and quote selection by Octagon. Quotes are short excerpts; the full conversation is in the episode.

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