Terrament
Gravity Storage
Breakthrough gravity storage in underutilized mines, solving the
trillion dollar Long-duration energy storage market.
20×
20x more energy potential than other gravity-based energy storage solutions.
80%+
Round trip efficiency (RTE) over 80%, best in class for long-duration storage.
<8¢/kWh
Levelized cost (LCOS) under 8¢/kWh unsubsidized, with potential to hit 5¢/kWh.
Terrament Gravity Storage
Terrament's patented technology reimagines gravity storage to achieve maximum height and weight.
Our solution achieves 20x more energy density than other gravity-based energy storage solutions.
- More Height: 20x duration from a mile of height using proven drilling tech.
- More Weight: 10x power from our cable-free, shaft wall mounted rail design.
Our system is built on proven technology without science risk. We have no reliance on critical minerals or chemical batteries. We leverage motor/generators developed for wind turbines, and mine shaft technology proven for 50 years.
The Energy Storage Problem
Artificial intelligence is driving explosive growth in data centers, with AI servers using up to 10 times the power of standard servers. If data centers were a country, they're projected to be the fourth largest electricity user by 2035. The biggest cloud service providers want to run entirely off green energy, especially useful in off-grid systems, which are favored due to long interconnection queue timelines. However, wind and solar are intermittent resources; the wind doesn't always blow, and the sun doesn't always shine.
Today, 90% of the world's energy storage is pumped hydro, which is a nearly tapped out resource. And lithium-ion batteries are too expensive at long durations.
Terrament replicates pumped hydro's capabilities, but without the large footprint, water usage, or need for hills.
Grant-Funded Research Validation
Terrament is based out of Newlab in Brooklyn, NY. We've been awarded two U.S. Patents, with further patents pending. We're grateful to have pro bono legal support from Foley Hoag LLP.
We recently won U.S. federal grant funding to support outside research validation of our breakthrough technology. We won two EnergyWERX awards from the DOE valued at around $300,000.
Our research partner University of Washington, Washington Clean Energy Testbeds developed and validated our techno-economic model to conclude that Terrament's lifetime cost (levelized cost, or LCOS) is under 8¢/kWh for a 1GWh facility, and approaches 5¢/kWh at larger scales. This is cheaper than any competitors in our target market.
Our research partner LHP Engineering conducted extensive mechanical/electrical modeling and physics simulations to conclude that Terrament's round trip efficiency (RTE) is over 80%. This is as good or better than any competitors in our target market.
Accelerators and Partners
We are grateful to have been accepted into the following programs:
- CEBIP accelerator program at Stony Brook University (since 2021).
- Founder Fellowship cohort at Newlab (in 2023, still active).
- Plug and Play Program (Japan - Energy focus, in 2024).
- Cleantech Open Program (Northeast, in 2024).
