Subseageothermalforenergyabundance

The grid problem

Power availability is the world's greatest need

From island nations, to industrial sites, to hyperscale data centers, quality of life and technological progress are directly correlated with the availability of low cost power.

1. International Energy Agency
   In Pacific island countries, fuel imports can account for up to 13% of GDP and electricity can cost almost seven times as much as the United States.

2. US Energy Information Administration

3. SemiAnalysis

OUR BREAKTHROUGH

Subsea geothermal offers limitless renewable energy

Under the sea, where tectonic plates spread and new crust forms, volcanic activity provides ideal conditions to produce electricity from Earth’s internal heat.

OUR ENERGY SOLUTION

Advantages

24/7 Operation

Unaffected by weather or fuel supply

Zero Surface Footprint

Both generation and transmission live on or under the seafloor.

Fast

Gigawatt scale installations in months instead of years

Technologically Tested

Leverages proven oil & gas and geothermal technology

Modular and Scalable

Extreme power density enables factory production of small modular units, clusterable to gigawatt scale

SEPTEMBER 2026 DEPLOYMENT

Adélie

Adelie is Endurance’s planned 100 kW subsea power system, designed to operate for one year inside the Axial Seamount caldera and connect to the OOI Regional Cabled Array off the Oregon coast.

Recent news

Endurance is proud to announce our $54M Series A, led by Founders Fund, to develop subsea geothermal power.](https://www.linkedin.com/posts/enduranceenergy_endurance-is-proud-to-announce-our-54m-series-activity-7470842815736983552-j_oR?utm_source=share&utm_medium=member_ios&rcm=ACoAACQYUYYBpTBBW7F6xOZsN--9e48N20ikbhs)

TechCrunch: Endurance Energy raises $54M to harness a massive untapped energy source](https://techcrunch.com/2026/06/11/endurance-energy-raises-54m-to-harness-a-massive-untapped-energy-source/)

Nuku'alofa, Tonga - The Government of Tonga, in partnership with Endurance Energy, a United States-based energy developer, announces the commencement of a subsea geothermal test deployment](https://www.linkedin.com/posts/enduranceenergy_endurance-energy-is-honored-to-announce-our-activity-7460442607165313024-_tSo/?utm_source=share&utm_medium=member_ios&rcm=ACoAACQYUYYBpTBBW7F6xOZsN--9e48N20ikbhs)