About
A science-led team proving a new energy source
Fremantle Lake exists to answer one question with rigor: can geologic hydrogen become a reliable, low-carbon source of energy for California and the country? We are an experienced team building a long-term, lasting project.
Our story
Why we started, and where we are headed
Fremantle Lake began in 2024 with a conviction that the energy the world needs may already be forming beneath our feet. We built exploration models to find the most promising ground, then secured an early land position to study it.
Since then the project has been joined by experienced energy operators and climate investors, and guided by advisors with deep subsurface and laboratory expertise. That combination of capital, science, and operating experience is what lets us move with both ambition and care.
Today we are preparing for the most important step yet: drilling an exploration well in California to bring hydrogen to the surface and test our models.
Milestones
Progress so far
- 2024
Fremantle Lake is founded, and the first exploration models and land position take shape.
- 2025
Anning selected for the Breakthrough Energy Fellows cohort, the program founded by Bill Gates.
- 2025
Anning named a finalist in the Houston Innovation Awards, Energy Transition Business category.
- Now
Preparing to drill the first exploration well for geologic hydrogen in California.
The people
Who is behind the work
A focused team with the scientific and operating depth this work demands.
Sophie Broun
CEOA former Chevron senior leader with 15+ years across the US, Australia, and deep-water frontier basins, Sophie brings proven expertise in complex exploration and billion-dollar joint ventures to Fremantle Lake. She holds an MBA from the Wharton School and an MSc in Petroleum Geoscience, grounding her vision for clean geologic hydrogen in both rigorous science and sharp business strategy.
What guides us
The values we hold to
Science first
We let the data lead. Every claim has to earn its place through evidence, not optimism.
Transparency
We share our progress openly with stakeholders and communities as we learn more.
Responsible stewardship
We develop with respect for the land, the water, and the community.
Work with us
Want to go deeper?
We are happy to walk investors, partners, and policymakers through the science, the plan, and the team in detail.