Kardashev Scale of World Economies

Energy Consumption & Civilization Type Analysis

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What is the Kardashev Scale?

The Kardashev scale is a method of measuring a civilization's level of technological advancement based on the amount of energy it is able to use. Proposed by Soviet astronomer Nikolai Kardashev in 1964, it has three designated categories:

Type I: Planetary

Can use and store all of the energy available on its planet from its parent star. (~10¹⁶ Watts)

Type II: Stellar

Can harness the total energy of its planet's parent star (e.g., Dyson Sphere). (~10²⁶ Watts)

Type III: Galactic

Can control energy on the scale of its entire host galaxy. (~10³⁶ Watts)

Humanity is currently a "Type 0" civilization. Based on Total Primary Energy Supply (oil, gas, coal, etc.), we are estimated to be around Type 0.73.

*The live data below tracks Electricity Generation only, which is a subset of total energy (~20%). This results in a lower calculated Type.

Current Kardashev Status (Electricity Generation)

Calculation Method: Carl Sagan's formula: $K = \frac{\log_{10} P - 6}{10}$, where $P$ is power in Watts.
Data based on Annual Electricity Generation (Source: Ember).

Change in Electricity Generation

Last 12 Months vs Prior 12 Months
Source: EMBER, ember-energy.org (Data estimated through September 2025 based on trends)

Total Energy: Generation vs. Demand (Loading...)

TWh Comparison
Source: EMBER, ember-energy.org

World Electricity Generation by Source

Historical Trend
Source: EMBER, ember-energy.org

Frequently Asked Questions

What is a TWh?

**TWh** stands for **Terawatt-hour**. It is a unit of energy equal to one trillion watts used for one hour. To put it in perspective, 1 TWh can power about 100,000 average homes for a year.

Why does World Generation equal Demand?

The Earth is effectively a "closed system" for electricity. We don't import power from space! Therefore, every watt generated must be consumed (or lost as heat) somewhere on the planet.

Why do countries have different values?

Unlike the World total, individual countries trade electricity. If **Demand > Generation**, the country imports power. If **Generation > Demand**, it exports power to its neighbors.

How is the Kardashev Type calculated?

We use Carl Sagan's logarithmic formula: $K = \frac{\log_{10} P - 6}{10}$, where $P$ is the power in Watts. We derive the power $P$ from the annual TWh energy consumption.