Kardashevs scale main

The Kardashev scale is a method of measuring a civilization's level of technological advancement based on the amount of energy they are able to use. The measure was proposed by Soviet astronomer Nikolai Kardashev in 1964.[1] The scale has three designated categories:

A Type I civilization, also called a planetary civilization—can use and store all of the energy available on its planet.

A Type II civilization, also called a stellar civilization—can use and control energy at the scale of its stellar system.

A Type III civilization, also called a galactic civilization—can control energy at the scale of its entire host galaxy.

Current status of human civilization

At the current time, humanity has not yet reached Type 1 civilization status. Physicist and futurist Michio Kaku suggested that humans may attain Type I status in 100–200 years, Type II status in a few thousand years, and Type III status in 100,000 to a million years. In 2018, the total world energy consumption was 13864.9 Mtoe (161,249 TWh),[5] equivalent to an average power consumption of 18.40 TW or 0.73 on Sagan's interpolated Kardashev scale.