Geothermal Energy: The Forgotten Renewable
The Renewable That Never Sleeps
When we talk about renewable energy, the conversation is dominated by solar and wind. But there is a source of clean power that operates 24 hours a day, 365 days a year, regardless of weather conditions: geothermal energy.
Unlike solar (which needs sunlight) and wind (which needs airflow), geothermal taps into the Earth's internal heat — a virtually inexhaustible resource that provides consistent baseload power with near-zero carbon emissions.
Who Leads in Geothermal?
The 2024 data from the U.S. Energy Information Administration reveals a surprising top 5:
| Rank | Country | Generation (bn kWh) | |------|---------|-------------------| | 1 | Indonesia | 16.8 | | 2 | United States | 15.4 | | 3 | Philippines | 10.4 | | 4 | New Zealand | 8.9 | | 5 | Turkey | 8.7 |
Indonesia has overtaken the United States as the world's largest geothermal electricity producer. This reflects decades of investment in the country's volcanic archipelago, which sits on the Pacific Ring of Fire and has enormous untapped potential.
Why Geothermal Matters More Than Ever
Capacity Factor
Geothermal plants typically achieve capacity factors of 90%+, compared to 25-35% for solar and 30-45% for wind. This means a 1 GW geothermal plant produces roughly 3x more electricity annually than a 1 GW solar farm.
Grid Stability
As grids integrate more intermittent renewables, the need for reliable baseload power grows. Geothermal fills this role without the carbon emissions of natural gas peaker plants.
Turkey's Rapid Rise
Turkey has emerged as a geothermal leader, growing from nearly zero to 8.7 billion kWh in just over a decade. The country's western Anatolia region contains significant geothermal reservoirs, and aggressive government incentives have driven rapid development.
The Untapped Potential
The International Renewable Energy Agency estimates that only 6-7% of global geothermal potential is currently being utilized. Countries along tectonic plate boundaries — including Kenya, Ethiopia, Chile, and Japan — have significant room for expansion.
Explore the Data
All geothermal generation and capacity data for 56 countries is available on energtx.com. Download in JSON, CSV, or XLSX format for your own analysis.
Geothermal energy is the baseload renewable the world needs — and it is hiding in plain sight.
Methodology
Data sourced from the U.S. Energy Information Administration (EIA) International Energy Statistics. Values represent 2024 generation in billion kilowatt-hours. Visualizations generated with R and ggplot2.