Meet Terrament
Terrament is building long-duration energy storage using gravity batteries deployed deep underground.
Our patent-pending design achieves high scale and low cost by maximizing the two simple ingredients of gravity storage: height and weight:
- First, we maximize height potential by digging a mile deep into bedrock.
- Second, we maximize density with modules that support their own weight.
Our solution is low-risk:
We don't depend on critical minerals, and we don't use any chemical batteries. Our innovative system uses only well-established technologies: We leverage the same motor/generators used in wind turbines, and we use the same mile-deep mine shafts which have been built by mining companies for over 50 years.
Terrament Pitch Deck
The Energy Storage Problem
The threat of climate change has sparked action to replace fossil fuels with wind and solar energy. But wind and solar are intermittent resources; the wind doesn't always blow, and the sun doesn't always shine. So without energy storage, our urgent transition to renewable energy will stall.
According to NREL, energy storage capacity in the U.S. needs to grow five times larger by 2050 to support wind and solar energy.
But we have a big problem: We don't yet have proven, low-cost technologies that can reach this scale.
Today, nearly all of our energy storage is pumped hydro, which is a nearly tapped out resource. And Li-ion batteries remain too expensive and impractical to scale up for the entire grid. In fact, researchers are concerned that we may struggle to mine enough Lithium for just electric vehicles, let alone to serve both mobility and grid storage.
So we need a new solution. A solution which is low-risk, high-scale, and low-cost.
Terrament's Gravity Storage
Terrament's gravity storage can solve our massive energy storage demand at an affordable cost.
Our full design is still confidential in early development. However, this early-draft animation illustrates our basic concept. More details to be revealed post-funding.
Terrament’s patent pending design achieves breakthrough efficiency by maximizing the two simple principles of gravity storage: height and weight.
- Height: We achieve 10 times more height than above-ground solutions. This is solved by digging a mile deep into bedrock (or using abandoned mine shafts).
- Weight: We achieve nearly 100% volume capacity with densely packed weight. This is solved with a modular design of self-supporting autonomous units.
About Us
Terrament is a clean-tech startup based in Brooklyn, NY.
We're a proud member of the CEBIP accelerator program at Stony Brook University. And we're grateful to have beeen chosen for the 2023 Founder Fellowship cohort at Newlab.
We are currently building our prototype at Newlab, in the Brooklyn Navy Yard. We have two pending patent applications, and we're seeking our first round of investment.
