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Could the sand battery make renewable energy more dependable?

Jul 29, 2022
A start-up in Finland unveils the world’s first commercial heat storage system using sand to solve the problem of the variability of solar and wind power.
The sand battery at Kankaanpaa in southwest Finland.
Courtesy Polar Night Energy

What happens when we run out of sand?

May 2, 2022
We’re depleting the natural resource at an alarming rate, which means higher costs for building, the environment and mining communities.
Excessive mining is driving up the cost of sand, but it's also devastating the environment and mining communities. Above, a sand mining site along the Gambian coast in 2021.
John Wessels/AFP via Getty Images

Central Texas sand mines shift west, taking jobs with them

May 13, 2019
The market for McCulloch County sand has been drying up.
BRADY, TX. January 28, 2019. The Momentive Sand Plant outside of Brady.
Gabriel C. Pérez/KUT

States play catch-up with sand mining

Jan 19, 2015
In Wisconsin, sand mines go uninspected, fines are modest and some rules have lapsed.

Frac sand companies get creative with local politics

Jan 16, 2015
When a Wisconsin county tried to shut them out, sand companies found a way in.

Sand turns a rural county upside-down

Jan 15, 2015
Fracking creates a sand rush in western Wisconsin, and not everyone is happy.

Warrantless cell phone tracking is everywhere

Apr 4, 2012
A new report from the American Civil Liberties Union says that law enforcement agencies are frequently using cell phone tracking information provided by wireless carriers. Plus, Wonder Twin powers activate: Smart sand is on the way.

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Sand rush splits a community

Jan 27, 2012
How the discovery of a valuable commodity under the rolling hills of a rural Wisconsin community has pitted neighbor against neighbor.