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New Honda Solar Power Hydrogen Station Debuts

It's designed for an 8-hour, slow fill of a fuel cell electric vehicle.

by on Jan.27, 2010

The Honda FCX Clarity electric vehicle shown is "fast fill capable," with a range of 240 miles.

Honda began operation today of a new solar hydrogen station prototype at its Los Angeles Research and Development Center. It is a prototype of a home refueling “appliance” capable of an overnight refill of a fuel cell electric vehicle.

The latest iteration reduces the size of the system, while producing enough hydrogen (0.5 kg) during an 8-hour overnight fill for daily commuting of as much as 10,000 miles per year for a fuel cell electric vehicle.

The Honda FCX Clarity electric vehicle is “fast fill capable” and offers an EPA-estimated driving range of 240 miles. One problem, among many, with hydrogen as a fuel is that it needs to be compressed at very high pressures in order for a vehicle to carry enough to have a usable range. However, hydrogen offers the tantalizing promise of being an emissions free fuel for vehicles.

The previous solar hydrogen station system required both an electrolyzer and a separate compressor unit to create high-pressure hydrogen. The compressor was the largest and most expensive component and reduced system efficiency.

Honda says its engineers have now created a new high differential pressure electrolyzer that eliminates the compressor.


This development also reduces the size of other key components to make the new station what Honda claims is the world’s most compact system, while improving system efficiency by more than 25% compared to the solar hydrogen station system it replaces.  (more…)