Fresh water

You probably have no idea how much water is needed to produce electricity

Photo: That’s not carbon dioxide. It’s steam.

You’re likely within a few feet of an electric switch. When you turn it on, some power plant many miles away starts producing the electrons your device needs. Despite the growth of renewable-energy solutions, most of those electrons are still generated by fossil fuel or radioactive fuel.

The trouble is that thermal electricity generation—a category that includes coal, natural gas, and nuclear power—doesn’t just require fuel, but also water. And a lot of it.

In the US and Europe, more than half of the water drawn from nature is used for power generation. This year’s heatwave has forced some of those power plants to shut down. Thermal power plants use high-temperature steam to turn turbines, which convert heat energy into electricity. In the process, the steam’s temperature falls, so it can no longer be used efficiently to move the turbine again.

To raise its temperature back up, the steam first needs to be condensed into water, because liquids absorb heat better than gases. The condensation is achieved by using cooling water drawn from rivers, lakes, or seas, which is then dumped back at a temperature that is safe for wildlife in those waters. The amount of water needed […]

Summary
Article Name
You probably have no idea how much water is needed to produce electricity
Description
Thermal electricity generation - a category that includes coal, natural gas, and nuclear power - doesn't just require fuel, but also water. And a lot of it.
Author
Publisher Name
Quartz
Publisher Logo

Recent Posts

LA River restoration connects us back to ‘the life force of our city’

Los Angeles residents at a section of the Los Angeles River cleanup in Los Angeles,…

2 days ago

LAist: New study raises questions about heavy metals in fire retardants

Over the past decade, about 67 million gallons of fire retardant have been dropped on…

2 days ago

Meadow and watershed restoration in the Golden Trout Wilderness

Photo: Golden Trout Wilderness Seeking blue, seeing gold The Kern Plateau features a chain of…

3 days ago

First sighting of salmon in 100 years marks key milestone for California dam removal

For the first time in more than a century, a salmon was observed swimming through Klamath…

1 week ago

Developing state water roadmaps is essential

New turnout facility from the California Aqueduct on Monday, Oct. 23, 2023. Officials say the…

2 weeks ago

Migration Matters: Breaking Down Barriers to Migration

Over the past century, humans have constructed major transportation infrastructure like highways, bridges, railroads, and…

3 weeks ago