Energy Storage
Stores vast amounts of energy in a compact, efficient design, combining practicality with modern innovation.
Hydrogen storage systems need to be compact, safe, scalable and reusable to outperform existing power solutions.
Proprietary Technology
- Seals hydrogen in a non-explosive format
- Capable of independently charging, storing, and dispensing hydrogen
- With Prometheus Hydrogen’s proprietary technology, hydrogen remains instantly available even after a decade of dormancy
Safe
- No toxic chemicals or metals
- Prometheus’ stored hydrogen is safer than diesel or petrol
- Prometheus storage units remain stable even after 1000°F fire exposure
Convenient and Durable
- Compact form factor that can be stacked or combined to operate together
- Prometheus Hydrogen’s unit fill-times near equivalent to diesel/gasoline with expected +30,000 cycle useful life
- Modular with “plug and play” skill level
H-Stalk™
Our innovative hydrogen storage solution is designed to adapt to your power needs. The compact size scales with the energy capacity you require, making it easy to find the perfect fit for your application. This modular system serves as the foundation for other advanced energy solutions, delivering safe, portable, resilient, and highly scalable energy—all within a small, efficient container.
Features
- Serves as building block for other products
- Compact, durable, and quiet
- +30,000 cycles between maintenance
- Operates without thermal external management
- Capable of independently charging, storing, and dispensing hydrogen
- Refillable from almost all hydrogen sources including other Prometheus storage solutions or from compressed hydrogen, or electrolysis
H-Branch™
H-Branch™ mobile hydrogen storage that, when coupled with a small fuel cell, provides electrical power that produces highly safe, portable, resilient, and scalable energy that is lighter than traditional batteries.
Features
- 3” x 12.5” cylinder (similar to tennis ball can)
- Serves as building block for other products
- Compact, durable, and quiet
- +30,000 cycles between maintenance
- Operates without thermal management
- Capable of independently charging, storing, and dispensing hydrogen
- Refillable from almost all hydrogen sources including other Prometheus Hydrogen storage solutions, compressed hydrogen, or electrolysis
- Significantly reduced logistics footprint
- Long operational lifespan with minimal maintenance downtime
- Transport safe and resilient
- Fully recyclable and US sourced
- No rare earth or conflict materials
RoadBlox™
Large-Scale Hydrogen Storage
RoadBlox™ containerized hydrogen energy storage offers extremely safe, easily deployable and scalable hydrogen access that is low maintenance, and long lasting.
Versatile
- Capable of charging, storing and transporting hydrogen in a single form factor
- Can be refilled from other Prometheus Hydrogen storage systems, compressed hydrogen, or from electrolyzers
Compact
- Storage capacity multiples denser than high pressure hydrogen storage
- No need for external coolant/heating to operate
Features
- Configurations of H-Stalk™ systems in standard shipping container formats
- Transport safe for rail, road, and sea (air certification expected)
- Can be safely shipped empty, full, or partially full.
- Serves as building block for other products
- Compact, durable, and quiet
- +30,000 cycles between maintenance
- Operates without external thermal management
- Capable of independently charging, storing, and transporting hydrogen
- Refillable from almost all hydrogen sources including other Prometheus storage solutions or from compressed hydrogen electrolysis
- Significantly reduced logistics footprint
- Long operational lifespan with minimal maintenance downtime
- Fully recyclable and US sourced