Hydrogen-based autonomous energy supply system

The next stage for energy

Following the 2011 earthquake and tsunami.
The need for a stable energy supply during disasters, when essential utilities are lost, is clear. In recent years, renewable energy has been seen as an emergency solution. However renewables depend on the weather and can be unstable. Toshiba has a better solution: H2One™.

This new energy supply system offers a total one-stop solution, from using renewable energy to produce and store hydrogen, to using that hydrogen in fuel cells.
In normal use and in disasters, H2One™ contributes to energy supply stability by using hydrogen generated with renewable energy.

Overview of the hydrogen system

Usually (under normal circumstances)

Usage and storage of each of the electricity, hot water, and hydrogen used in facilities are monitored and optimum control for operation is carried out in order to reduce the electricity charges and the amount of CO2 emissions.

In an emergency (in times of disaster)

Independently supplies electricity and hot water when a natural disaster strikes.The system in the world standard size can be transported anywhere in an emergency.

  • [Image] Independent Hydrogen Energy Supply System H2One
  • [Image] Independent Hydrogen Energy Supply System H2One
  • [Image] Independent Hydrogen Energy Supply System H2One

H2One™, Hydrogen-based autonomous energy supply system
utilizing renewable energy and hydrogen


Fuel Cells

Pure Hydrogen Fuel Cell System

Pure Hydrogen Fuel Cell System Developed Based on Outcomes of Development of Natural gas/LPG ENE FARM systems

  • Since no fuel reformer (device used to extract hydrogen from natural gas, etc.) is required, the system can be more compact, efficient, and start more rapidly.
  • The system can realize CO2-free operation by using hydrogen derived from renewable energy generated by photovoltaic power generation, wind power generation, and biomass.

Pure hydrogen fuel cell system vs. ENE FARM

Pure hydrogen fuel cell ENE FARM
Fuel Pure hydrogen Natural gas/LPG
Power output 700W 700W
Generating efficiency 55% LHV or more 39% LHV
Overall efficiency 95% LHV or more 95% LHV
FC unit size 310 (W) x 441 (D) x 1162 (H) 780 (W) x 300 (D) x 1000 (H)
Startup time Within 5 minutes Within 60 minutes
Outer appearance [Image] Pure hydrogen fuel cell [Image] ENE FARM

Advantages of introduction of pure hydrogen fuel cells

High generating efficiency
Realizes high versatility no matter how the heat demand of the facility may be.

High environmental performance
When compared with a gas engine generator, this system produces less operating noise, less vibration, and cleaner exhaust gas.
Contributes to reduction of CO2 emissions from the facility.

Short startup and stop time. High load-following performance
Because of the load-following operation and control of the number of running units, the system can supply stable power and flexibly respond to fluctuating demand.

Contributing to an increase in local energy self-sufficiency
Hydrogen can be produced even from renewable energy in the community.
The system can be used in an emergency to supply power.

More information about Pure Hydrogen Fuel Cell System

Hydrogen Energy Storage System

Large Capacity Hydrogen Energy Storage System

  • produce grid electricity : 5MWe
  • store hydrogen tank storage capacity : 12,000Nm³ ((hydrogen tank 60m³ at 20MPa))
  • use electricity storage capacity : 32MWeh ex. provide electricity for 8 hours to about 25,000~30,000 people