Terrament is building long-duration energy storage with gravity batteries deployed deep underground.
Our patented design achieves high scale and low cost by maximizing the two simple ingredients of gravity storage: height and weight.
Terrament's gravity storage 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.
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 is a clean-tech startup based in Brooklyn, NY.
We recently completed a prototype at Newlab, in the Brooklyn Navy Yard.
We have been awarded a US Patent. And we have two more pending patent applications. We're seeking our first round of investment.