Closed-Loop Pumped Storage Development

The grid needs gravity.
We find where it works best.

GravityGrid identifies, evaluates, and develops optimal sites for pumped hydroelectric storage. The most proven form of grid-scale energy storage, deployed at the locations where it creates the most value.

88%
of U.S. grid storage is pumped hydro
$15B
DOE funding for PSH development
79.8 GW
in the FERC application pipeline
40yr
asset life per FERC license

Systematic site identification at portfolio scale

01 / SCREEN

Topographic Analysis

GIS-based screening across elevation differentials, water availability, geology, and land ownership to surface high-potential closed-loop sites before anyone else sees them.

02 / EVALUATE

Grid & Market Fit

Proximity to transmission infrastructure, grid congestion zones, retiring baseload plants, and state storage mandates. Sites that score high technically must also score high economically.

03 / DEVELOP

Permitting & Finance

FERC preliminary permits, environmental studies, water rights, interconnection agreements, and capital partnerships. From identification through investment-ready project packages.

Why pumped hydro. Why now.

Renewables need storage at scale

Wind and solar are intermittent. Data centers demand 24/7 power. The gap between generation and demand is widening, and only long-duration storage fills it.

Proven technology, unproven pipeline

PSH has operated reliably since 1930. The challenge was never the turbines. It's finding the right sites, navigating FERC, and assembling the capital stack.

Federal tailwinds are unprecedented

$15B in DOE funding. Expedited FERC licensing for closed-loop projects. State storage mandates in CA, NY, and expanding. The regulatory environment has never been more favorable.

40-year revenue assets

A FERC license grants 40 years of operation. These aren't 5-year battery replacements. They're generational infrastructure that appreciates as grid demand grows.

The bottleneck is siting, not technology. We're solving it.

Building the infrastructure layer that turns terrain into clean energy assets.

Explore the PSH Site Screener