Overview

The Global Geothermal Power Tracker (GGPT) shows that expansive growth is coming to the sector, with prospective projects slated to double capacity. 

With nearly 14 gigawatts (GW) of prospective geothermal power capacity worldwide, the globe could see a nearly 100% increase of total operating capacity within the next decade.

While technological advancements are decreasing the cost of geothermal power as a baseload power source, the cost and the long construction timeline still hinder growth. As of 2026, the GGPT identifies over 830 active and in-development geothermal power units worldwide. The United States continues to lead the operation and expansion of geothermal power. Outside of the U.S., Kenya, Indonesia, the Philippines, and Taiwan are also slated to see large growth in geothermal capacity related to the data center sector, with policies that support permitting creating demand. 

The tracker notes which geothermal power units have established power purchase agreements (PPA) with data centers, showing an emerging trend of tech companies adopting geothermal as a renewable way to power growing AI demands globally. Pivoting expertise from the oil and gas drilling industry to this green technology is a viable option for job creation in a global shift away from fossil fuels. 

However, a decrease in project permitting time that sacrifices just community engagement and environmental permitting could lead to geothermal souring relationships with communities. Indonesia and Nevada in the U.S. have seen projects face financial, environmental, and community opposition, causing delays or cancellations. Overall, GEM’s geothermal power plant data paint the picture of an expanding sector that will likely continue to grow as a green baseload power supplement to wind and solar. 

Methodology

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