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Terrament

Updated Oct 2025

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What Terrament makes

Modular Underground Gravity Batteries. Our patented solution is 20 times more energy dense than other gravity solutions.

Company Info

Terrament is building long-duration energy storage using underground gravity batteries. Our patented design achieves 20 times more energy density than other gravity solutions because we’re able to maximize both simple ingredients: height and weight.

Role of software at Terrament


Terrament's Trajectory

Roadmap: 2024-2025: Raise pre-seed funding round. Complete 1/10th scale prototype demonstration. Expand team. Secure pilot project partnerships.

2026-2027: Begin pilot project construction. Grow team to 12-15 employees adding project management and operations roles.

2028-2030: Complete first full-scale commercial project (FOAK). Begin commercial project pipeline development.

Terrament's Climate Impact

Based on CRANE modeling tool estimates, Terrament could achieve:

3.86 MT CO2/year saved at 1% market penetration 19.29 MT CO2/year saved at 5% market penetration 38.58 MT CO2/year saved at 10% market penetration

Cumulative impact by 2050: Over 1 billion tons CO2e avoided by replacing just 10% of existing peaker plants

Additional environmental benefits: No water resources required unlike pumped hydro No toxic materials or rare earth elements unlike batteries Small land footprint compared to other storage solutions 50+ year lifespan with minimal degradation