Could the heat of the Earth’s crust become the ultimate energy source?

Scientists have developed a very stable battery cell that can directly convert heat into electricity, thus finally providing a way for exploiting geothermal energy in a sustainable way.

From http://besthealthnews.com/2019/07/could-the-heat-of-the-earths-crust-become-the-ultimate-energy-source/?utm_source=rss&utm_medium=rss&utm_campaign=could-the-heat-of-the-earths-crust-become-the-ultimate-energy-source

from
https://healthnews010.wordpress.com/2019/07/18/could-the-heat-of-the-earths-crust-become-the-ultimate-energy-source/