Geothermal

In the US, geothermal energy accounts for just 0.4% of total energy. Literally speaking, it is at the bottom of the renewable energy food chain. Its lack of significance is primarily the result of engineering issues. Historically, it has not been worthwhile to make geothermal technology viable, similar to fusion. It is not worthwhile if it requires more time, effort, or money to obtain the same amount of power. Fortunately, technology keeps developing, and geothermal is about to become much more economically viable.

Geothermal energy is designed to draw heat and electricity from the planet. There is a lot of potential in the Earth's core, which generates roughly as much heat as the sun. Of course, tapping that does provide logistical challenges because it is 4,000 miles underground. Since the heat is produced by radioactive decay, it should continue to do so for a few billion years. According to calculations of practical power, the world's energy requirements could be met for nearly 2 million years by 0.1% of the heat in the Earth.

Geothermal energy is undoubtedly the most consistent and dependable renewable resource. Weather patterns have an impact on the wind and sun. The energy is continually present, and the Earth's core is constantly hot. The technology is already being developed, and the engineering is being mastered in order to make it practical.