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SUNNY SIDE UP
Solar based hydrogen station
Honda has
Honda began operation of a next generation solar Engineered for an 8-hour, slow fill for overnight
hydrogen station prototype at the Los Angeles refilling of a fuel cell electric vehicle, the home-use
announced that Centre of Honda R&D Americas, Inc., intended for Solar Hydrogen Station would replenish the
it has begun
ultimate use as a home refueling appliance hydrogen for a typical daily driving, meeting the
capable of an overnight refill of fuel cell electric commuting requirements of many drivers. As with
operation of vehicles. Designed as a single, integrated unit to fit the previous generation system, the hydrogen
a new solar
in the user’s garage, Honda’s Solar Hydrogen purity from the new station meets the highest SAE
Station reduces the size of the system, while (J2719) and ISO (14687) specifications.
Issue I 2010
hydrogen producing enough hydrogen (0.5kg) via an 8-hour
station, based
overnight fill for daily commuting (10,000 miles per Installed at the Los Angeles Centre of Honda R&D
year) for a fuel cell electric vehicle. Americas, the new Solar Hydrogen Station will
in Los Angeles
employ the same 48-panel, 6.0kW solar array that
to re-fuel Honda
The previous solar hydrogen station system powered the previous system. The array utilizes
required both an electrolyzer and a separate thin film solar cells composed of copper, indium,
fuel cell electric
compressor unit to create high pressure hydrogen. gallium and selenium (CIGS) produced by Honda
-pv-management.com
vehicle.
The compressor was the largest and most Soltec Co, a wholly-owned subsidiary of Honda
expensive component and reduced system that was established for the mass production and
.solar
efficiency. By creating a high differential pressure sales of solar cells capable of efficient renewable
www
electrolyzer, Honda engineers were able to electricity generation. Honda’s new offering of
eliminate the compressor entirely. solar cells reduce the amount of CO
2
generated
42
during production as compared to conventional
This reduces the size of key components to make solar cells.
the station the world’s most compact system, while
improving system efficiency by more than 25% Designed to support the needs of the future
(value calculated based on simulations) compared owners of fuel cell electric vehicles, the Honda
to the solar hydrogen station system it replaces. Solar Hydrogen Station was also designed to
complement a public network of fast fill hydrogen
Compatible with a “Smart Grid” energy system, the stations. The Honda FCX Clarity electric vehicle is
Solar Hydrogen Station would enable users to refill fast fill capable and offers an EPA-estimated driving
their vehicle overnight without the requirement of range of 240 miles.
hydrogen storage, which would lower CO
2
emissions by using less expensive off-peak With fast fill public stations providing 5-minute
electrical power. During daytime peak power times, fueling time for longer trips, and the opportunity of
the Solar Hydrogen Station can export renewable convenient nighttime slow filling at home using a
electricity to the grid, providing a cost benefit to solar station with a Smart Grid connection, the
the customer, while remaining energy neutral. Honda FCX Clarity can cover a wide range of
driving demands from the daily commute to
weekend trips.
A key strategy in creating a solar hydrogen station
for home-use was to create a new lifestyle with
convenient, clean, energy-efficient and sustainable
home refueling, by addressing the need for
refueling infrastructure that can advance the wider
use of fuel cell electric vehicles by consumers.
The combination of a fuel cell electric vehicle and
the solar hydrogen station could help lead to the
establishment of a hydrogen society based on
renewable energy, resulting in a major reduction of
CO
2
emissions and greater energy sustainability.
Honda began operation of its first Solar Hydrogen
Station at the Los Angeles Center of Honda R&D
Americas in 2001.
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