April 20, 2015

Press release
Kawasaki CityTOSHIBA CORPORATION
Start of an autonomous energy supply system based on renewable energy and hydrogen
CO2-emission-free hydrogen energy can provide
about one week’s worth of power and hot water for 300 people.
In the public facilities of Kawasaki Marien and Higashi Ohgishimanaka Park on the coast,Kawasaki City and Toshiba Corporation have completed H2One, an autonomous energy
supply system based on renewable energy and hydrogen, and have started demonstration
operations.
H2One is an autonomous energy supply system equipped with solar power generation
facilities, storage batteries, an electrolyzer to generate hydrogen, a hydrogen storage tank,fell cells, and other equipment. Using power generated by its solar power generation facilities,
the system stores hydrogen generated by the electrolysis of water, which is then used as thefuel of the fuel cells to supply power and hot water. Since the system can operate on only
water and sunlight, it can supply electricity and water by itself even when criticalinfrastructure is disrupted in a disaster. At Kawasaki Marien, which is designated as atemporary shelter for people who are unable to return home in a disaster, the system uses
its stored hydrogen to supply about one week’s worth of power and hot water for 300 people.
In addition, because the system is packaged in a container, it can be transported to adisaster area by a trailer.
Its hydrogen energy management system (Hydrogen EMS) normally provides optimum
control of the amount of generated hydrogen, stored power, and generated power,
contributing to the peak-shift and peak-cut of power.
The demonstration operation will verify the effectiveness of the hydrogen BCP system
assuming a disaster and the hydrogen energy management system in normal conditions,and further increase the efficiency of the entire system. Furthermore, by improving thehydrogen storage capacity, the system is scheduled to be developed as a fully locallyproduced, locally-consumed energy supply system.
In 2013, Kawasaki City and Toshiba Corporation concluded an agreement to cooperateand collaborate with each other to achieve a smart community. Since then, they have been
cooperating on various issues regarding energy, traffic, and lifestyles.
Kawasaki City will continue its cooperative efforts with various entities such as affiliatedcompanies to realize a "future environment and industrial city" through the proactive
introduction and use of hydrogen energy.
Toshiba Corporation will continue to strive to realize a safe, secure and comfortable humansmart community with renewable hydrogen that does not emit CO2 by fusing technologies
in a wide range of business fields within its group.

System configuration diagram

UsuallyEmergency

Power of the facility

Power of the shelter

Outline of H2One System Configuration

Storage battery unitPowerHPowerHH

Hot water

Solar panelOHHydrogen storage tank

Hydrogen electrolyzer
H2O

Water feed tank

Fuel cell unit
H2O

Public facility

H2O

Gym
H2O

Outline of the demonstration
VenuePeriodKawasaki Marien and Higashi Ohgishimanaka Park
April 20, 2015 to March 31, 2021

Contents of thedemonstration• Verification of the hydrogen energy management system in normal
conditions• Verification of the hydrogen BCP system assuming a disaster

Main specifications
for the system

Amount of generated hydrogen: 1 m3/h max.
Hydrogen consumption: 2.5 m3/h max. 5 m3/h
Stored hydrogen: 33 m3 max. (270 Nm3, 0.8 MPa)
Water supply: 75 L/h max. (40 °C)
Solar power generation capacity: 30 kW
Fuel cell output: 3.5 kW
Amount of stored power:350 kWh
Fuel cell efficiency: 95 % (power generation: 55%, hot water: 40%)

Note. BCP: Business Community Plan

Visit the Toshiba website to learn more about the hydrogen society it hopes to create.
https://www.toshiba-newenergy.com/en/
EndInquiries
Takahashi & Yumita: Smart City Strategy Office,Tel: +81-44-200-2095

General Planning Bureau, Kawasaki City
Tsukimoto & Takase: PR/IR Office, Toshiba Corporation

Tel: +81-3-3457-2100