Facility at night
A field of towers lit against the dark, dispatching stored power long after sundown.
Grid-scale gravity energy storage
Disruptively
Simple.
We are the future of grid-scale energy storage. GRAVIENT™ uses gravity to store energy at the most cost-effective rates, the result of our automated, innovative construction processes.
0%
Round-trip efficiency
0yrs
Operating lifespan
0%
Depth of discharge
<0sec
Ramp rate, 0 to 100%
The system film
Engineered on paper.
Proven by gravity.
Every GRAVIENT plant begins as a drawing: a 200 m tower, fifty four columns of stacked mass, one reversible machine. Keep scrolling and the blueprint builds itself, from first line to full grid.
Store energy as height.
Raise mass to store energy. Lower it to give the energy back. No fuel, no fire, no chemical degradation; the physics never wears out.
The tower
200 metres of stored force.
A slender slab holds fifty four columns of cast blocks on guide rails, raised and lowered by the crown gantries. Nothing burns, nothing wears out, nothing leaves the frame.
Charging
Surplus power becomes altitude.
When wind and solar overproduce, the hoists draw that surplus and park the weights at the crown. Charged means high.
Dispatch
Gravity answers in under a second.
On demand, the weights descend under full control and drive the reversible motor-generator. Power electronics respond in milliseconds; the grid feels it immediately.
To the grid
From tower to city.
A step-up substation and transmission lines carry the output to the grid, firming renewables around the clock.
The system film
Engineered on paper. Proven by gravity.
From blueprint to 200 m tower: how lifted weights store surplus renewable power and hand it back to the grid on demand.
Clean generation, stored by gravity
01 / Mission
Transition towards cleaner, more sustainable energy storage
Bridge the gap
Bridges the intermittency and availability gap between electricity generation and consumption.
Outlast lithium
Operates for longer periods of time compared to lithium facilities, at a fraction of the cost.
Build from what is local
Makes use of local soils and recycled industrial waste, producing eco-friendly results.
02 / Advantages
Advantages of gravity energy storage
A.01
Advanced Operation
Gravity energy storage provides hundreds of megawatts for several hours. Our technology stockpiles electricity when it is plentiful, then returns that same energy back to the grid when demanded.
A.02
Performance
Fast load ramping takes less than one second. Gravity energy storage facilities safeguard fluctuating energy on a GWh scale and maximize use of excess energy during low generation.
A.03
Uncomplicated Construction
Gravity storage construction is not as complex as conventional power plants. It uses local materials and local labour, keeping supply chains short and costs low.
03 / The System
A modular, scalable approach to store and release energy as needed
Balancing supply and demand while mitigating the effects of climate change. Watch how the GRAVIENT™ system works.
GRAVIENT™ system film
Lifted weights energy storage
04 / Visual Archive
The system, in motion
Live renders from the GRAVIENT™ visual library: the facility by day and night, under construction, and out in the field.
Robotized construction
Autonomous cranes stack the mass blocks floor by floor, with no crew at height.
Paired with renewables
Soaking up wind and solar, then firming clean power around the clock.
The tower, up close
Two hundred metres of stacked mass, engineered to the millimetre.
05 / Specifications
Features and benefits, by the numbers
Electrical and mechanical characteristics of the GRAVIENT™ gravity energy storage system.
Full technology overview →- Discharge duration
- 0.25 – 24 hours
- Depth of discharge
- 100%
- Incremental power
- 0.75 MW
- Self-discharge
- 0% / year
- Storage degradation
- 0% / year
- Operating modes
- Grid following & grid forming
- Output voltage
- 20–35 kV AC3-phase delta, preferable
- Grid frequency
- 50 / 60 Hz
- Round-trip efficiency
- 85%grid-to-grid
- Ramp rate, 0 to 100%
- < 1 secfrom idle
- Lifetime
- 50 years
- Ambient temp range
- -40 to 45°C-40 to 113°F
- Energy density
- 80–90 sq.m/MWh860–970 sq.ft/MWh
- Height
- 200 m
- Seismic rating
- All seismic zones
- System safety
- No hazardous materialsno fire or flood risk
- Plant controller
- Hitachi
- Protocols
- Modbus TCP, DNP3, OPC UA
- Interfaces
- RTU / RTAC
0 yr
Operating lifespan
1/3 cost
Compared to Li-ion
0%
Depth of discharge
06 / Features
Engineered without compromise
Ultra-fast response time
Go from zero to full power in milliseconds.
Customizable power and time
Ranging from 10 MW to multi-GW, with 0.15 to 24 hours of duration.
Revolutionary technology
First-ever robotized construction technology for high-rise facilities of its kind.
High round-trip efficiency
Up to 85% of stored energy returns to the grid.
Repurposed materials
Reuses industrial waste such as coal ash or mine tailings.
Any climate, any site
Can be built and operated in any climate; ambient conditions have no bearing.
Clean and safe
Designed to be eco-friendly, eco-conscious and safe from the ground up.
Independent supply chains
No reliance on rare earth materials, ever.
Built for the real world
From farmland to desert, GRAVIENT™ towers rise wherever the grid needs them: any climate, all seismic zones, no hazardous materials, and a 50-year working life alongside the renewables they support.
Ready for orders now
Join the transition to a sustainable future
We are building relationships with customers and partners around the world who value the commercial applications and industrial scalability of the GRAVIENT™ technology.
