Imagine if we could build pumped hydro anywhere.
Now we can.

DOE predicts 100X more blackouts by 2030

0,000:00:00:00
DAYS  HRS  MIN  SEC

Following three years of engineering and development, Ourea Energy is the first-ever spin-out of legendary architecture and engineering firm Skidmore, Owings & Merrill (SOM) and Energy Vault (NYSE:NRGV).

meet the team

Designed for large-scale, high-cycle applications, GravityBank turns intermittent and
curtailed renewable
energy into
firm power.

See how it works
50%
Cooling Savings

Reduction in data-center cooling load — GravityBank’s water manages heat, not just energy.

Gravity Bank tower structure from Ourea Energy for energy storage
1 GWh
Energy Storage

Utility-scale, long-duration storage — packaged pumped hydro, built once, operated for generations.

Close-up of swirling dark green and teal ocean water with white foam patterns.
200M gal
Water Resiliency

Held in reserve for communities facing scarcity — one platform, three benefits.

GravityBank Platform

Grid Resiliency, Powered by Physics
1
UTILITY-SCALE FLAGSHIP
GB600

600-meter tall tower, storing a gigawatt-hour of energy.

2
modular
GB300

Sits beside a data center or manufacturing plant — campus storage, cooling, and water on-site.

3
integrated
GBI

Built directly into the structure of a building — the building becomes part of the infrastructure.

in partnership with
+

Ourea is proud to partner with leading experts across architecture, engineering, energy, innovation, and construction. After three years of collaboration between SOM and Energy Vault to advance the engineering of GravityBank, in 2025 Ourea became the first company to spin out from SOM in the firm’s 90-year history. Leveraging SOM’s near-century-long legacy of engineering innovation and Energy Vault’s expertise in long duration energy storage, Ourea is uniquely positioned to deliver grid firming and resilience to communities around the globe.