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

In a world where energy consumption is on the rise, our only hope is the development of new energy-generation technologies. Although currently used renewable energy sources such as wind and solar energy have their merits, there is a gigantic, permanent, and untapped energy source quite literally under our noses: geothermal energy.

source https://www.lifetechnology.com/blogs/life-technology-news-blog/could-the-heat-of-the-earths-crust-become-the-ultimate-energy-source