Tag Archives: Hydrogen

GE eyes 100% hydrogen-fueled power plants by 2030

By Frédéric Simon – While fossil gas is often seen as a transition fuel towards a fully decarbonized energy mix, GE Gas Power sees low-carbon gas as “a destination technology” with the potential to convert power plants to run 100% on clean hydrogen by 2030.

“Today, we have a 50% hydrogen capability for combustion in our largest baseload gas turbines” used for power generation, said Martin O’Neill, vice president at GE Gas Power.

The company’s objective, he explained, is to continue research and development in order “to advance the percentage of hydrogen combustion capability towards 100% by 2030,” he told a EURACTIV event earlier this month.

However, getting there would require a rapid scale up in the production of clean hydrogen, he added. And that will only be possible if multiple sources of low-carbon hydrogen are added to the mix, including so-called “blue hydrogen” where emissions are somehow captured and stored. more>

Updates from Boeing

By Maureen Jenkins – A fuel cell is an electrochemical device that converts hydrogen directly into electricity and heat without combustion. Because of this reaction, a fuel cell can be more than twice as efficient as an internal combustion engine.

Whereas a conventional engine burns fuel to create heat—in turn converting heat from mechanical energy into electricity—a fuel cell produces electricity, water and heat directly from hydrogen and oxygen. Fuel cells are powered by hydrogen, one of the most abundant elements on the planet. There are different fuel cell types, with Proton Exchange Membrane fuel cells considered to be the most versatile for mass-market applications. These cells contain a solid electrolyte, making it less sensitive to shock and vibration than other fuel cell types—and well-suited to portable and mobile applications.

When fueled with hydrogen, these fuel cells have zero pollutant emissions, have a low noise profile, and can be used to generate heat (for hot water) and power (in a combined heat and power system). They are non-polluting because the only byproduct is pure water. But even when fuel cells are operated using hydrocarbon fuels, pollutant levels are still significantly lower than those produced through traditional combustion.

PEM fuel cells will be used in the Boeing Research and Technology Center Fuel Cell Demonstrator airplane project.

Engineers can combine multiple fuel cells to form a “fuel cell stack.” They may use a stack on its own with a direct hydrogen source or integrate it with a number of other components to provide an operational power system tailored for a specific application. —Source: Intelligent Energy Ltd.

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