Toyota Australia
Hydrogen
Generator

Hydrogen is a lightweight gas that can store and release energy cleanly. In a fuel cell generator like the GEH2, hydrogen combines with oxygen from the air in an electrochemical process, producing electricity, water and some heat. There’s no burning, so no flames or smoky exhaust -just water vapor. In Australia, most hydrogen today is “grey” (from natural gas), but green production is ramping up through projects like those supported by the Australian Renewable Energy Agency (ARENA).

Hydrogen is flammable and leaks can ignite, but it rises and disperses quickly in open air, reducing risks compared to heavier fuels like petrol or natural gas. The GEH2 includes leak detectors, auto-shutoffs and robust venting. In Australia it complies with standards like AS 4332 for gas storage and Safe Work Australia guidelines. Real deployments, such as at the Australian F1 Grand Prix, have shown no incidents with proper setup. By training users on basic safety when near storage and the use certified installers—risks are comparable to LPG if managed well.

Hydrogen works well in targeted scenarios but requires careful planning to avoid high costs or delays.

• High costs: Green hydrogen is $50-$70/kg or more delivered; grey is ~$35/kg. For the GEH2 (3-3.5 kg/hour at full load), this means $210-245/hour (green) or $105-122/hour (grey) for 80 kW output—2-4 times diesel’s fuel cost. But this is rarely the case due to the application and usual intermittent loads.
• Limited supply: Green hydrogen is scarce, with production sites still scaling. Grey is more available but less sustainable.
• Logistics: Sparse refuelling infrastructure, especially in rural areas, adds transport costs. Plan deliveries carefully.
• Efficiency: Converting electricity to hydrogen and back loses 50-70% of energy, so it’s best for scenarios where direct renewables or batteries aren’t viable (e.g., long outages).
• Infrastructure: Requires safe storage and trained handling. Setup of new electrolyser infrastructure takes 6-12 months, including permits. The GEH2 can be deployed in a matter of days, with safety and compliance work across Australia having mostly been completed already by the Team at Toyota Australia.

The GEH2 is a hydrogen fuel cell generator designed by EODev, using Toyota’s reliable fuel cell tech (from the Mirai car) to deliver zero-emission power. It’s designed as a diesel replacement for mobile, backup, or prime applications, with a built-in battery for instant response. In Australia, units are now assembled by Toyota in Altona, Victoria, supporting jobs and faster delivery.

• Power output: 100 kVA / 80 kW prime; 110 kVA / 88 kW standby (units can parallel for more, e.g., two for 200 kVA).
• Efficiency: Around 45-50% electrical (higher than diesel’s 35-40%).
• Dimensions and weight: 3.35m long x 1.15m wide x 2.2m high; about 3.9 tons—transportable by truck, fits urban or remote sites.
• Fuel consumption: Roughly 1.0-3.5 kg hydrogen per hour (depends on load and conditions; EODev provides site-specific calcs).
• Operating conditions: -10°C to 40°C; requires 99.99% pure hydrogen at 11-16 bar input pressure.
• Noise: Low, around 55-60 dB at 7m—conversation level.
• Battery: Integrated 44 kWh lithium-iron-phosphate for peaks and quick starts (under 30 milliseconds).
• Emissions: Zero pollutants; only water (about 20-30 litres/hour at full load) and heat.
• Lifespan: Fuel cell ~15,000-20,000 hours with maintenance; unit 10+ years. Annual service similar to diesel but cleaner.

It’s quieter, cleaner (no spills or fumes) and more efficient but needs a steady hydrogen supply. Startup is fast and it handles variable loads well. Upfront cost is higher ($300k+ vs. $50k for diesel), but savings come from lower maintenance, no emissions and potential carbon credits. In practice, like at Marvel Stadium in Melbourne, it powered lighting at a series of events without the noise or smell of diesel.

Australia’s diverse landscape and net-zero push make the GEH2 suitable for scenarios where diesel is polluting or expensive to transport. Based on real deployments since 2023:

• Events and temporary power: Powered the tech hub at the Australian F1 Grand Prix in Melbourne (four units for 400 kVA, zero emissions during race weekends). Also powered Marvel Stadium for a light show, providing quiet power near crowds.
• Construction and infrastructure: Used by Kennards Hire and A W Edwards at Edmondson Park Commuter Car Park in Sydney—replaced diesel for construction works, reducing noise and emissions in urban areas.
• Remote and mining sites: Thiess deployed the first locally-assembled unit in New South Wales for off-grid operations.
• Community and education events: Powered the Maryborough Energy Breakthrough in Victoria, supplying clean energy for student trials and demonstrations.
• Disaster response: Portable for flood zones in NSW / QLD, where storable hydrogen beats short-life batteries.

These examples highlight success in short-term (events) or hybrid setups; for full-time use, pair with renewables to offset costs.

Success depends on proximity. Urban hubs like Sydney or Melbourne have depots within 100 km, but remote NT or WA sites face longer hauls.

• Distance impact: Under 200 km keeps transport costs low ($1-2/kg added); beyond 500 km, fees rise to $3-5/kg due to trucking (e.g., $2.2/km for a trailer). For example, a QLD community near Bulwer Island gets cheap delivery, while NT might source from Darwin (BOC/Coregas) with extra costs for 1,000+ km trips.
• Delivery frequency: It’s important to size the fuel storage to minimise logistic impact to site and to minimise logistics cost.
• Challenges: Road limits mean trailers max 500 kg; plan buffers for delays (e.g., weather in remote areas). Onsite electrolysis is an option but $200k+ for small units, viable only with cheap renewables.

Storage is via compressed gas at 200 bar usually (standard in Australia for safety and availability). There are some high-pressure (300-700 bar) options, but they’re rare, expensive and not readily buyable for generator use. The focus is on manpacks (manifolded cylinder packs) and tube trailers, which suppliers like BOC and Coregas provide. Scale to runtime: e.g., 24-hour backup at full load needs ~70-80 kg.

• Storage Types:
  Manpacks (bundles of cylinders at 200 bar, each holding 7-9 kg H2) for small needs; tube trailers (300 kg at 200 bar) for larger or ongoing use. Trailers can connect directly to the GEH2 via regulators. 
• Footprint examples:
  • Small (20-50 kg): 3-6 manpacks (each ~1-2 m², like a pallet); total area 5-10 m² including access and safety zones.
  • Medium (100-200 kg): 12-20 manpacks or a small bundle rack; 10-20 m², fitting beside the generator.
  • Large (300+ kg): Tube trailer (12-15m long x 2.5m wide, ~30-50 m² with setbacks and manoeuvring space). Can be semi-permanent, swapped by truck.
• Requirements:
  Outdoor, well-ventilated site on a concrete pad; 3-5m clearances from buildings per AS 4332. Include leak sensors, fencing and signage. Pressure regulators step down to GEH2’s 11-16 bar input. No significant losses like boil-off (unlike cryo). Installation: $2,000-7,000 for basics, plus rental (~$5000/month for a trailer). 

• To be considered for this offer, you must confirm that you have access to and approval from the land owner to place the generator and associated hydrogen tanks. (Please ensure you review the spatial requirements set out in the Technical FAQ.)
• The GEH2® power generator must be installed in a rural or regional location (not metro or classified as Remote Area 1) within 200km radius of one of the following sites:
  • Tonsely Park, SA
  • Port Kembla, NSW
  • Hobart, TAS
  • Altona, VIC
  • Geelong, VIC
  • Port of Hastings, VIC (starting Q1 2026)
  • Brisbane, QLD (starting Q1 2026)
  • Kwinana, WA (starting Q2 2026)

The organisation/s and stakeholders involved must demonstrate capacity and capability to enter into a contract with Toyota Australia to support deployment and ongoing engagement to provide feedback on the use of the equipment and enable support as required.

March / April 2026 (to be confirmed)