Glossary

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Gas Purification

Distillation of impurities, or unwanted components, from a gaseous mixture. Gas purification is usually used to separate, or isolate, one specific compound or element.

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Gas Supply / Supply Methods

Hydrogen is generally supplied by two methods: bulk hydrogen delivery usually sourced from large natural gas reformation plants and packaged in cylinders / tube trailers / liquid storage for easier delivery; small natural gas reformers; and on-site hydrogen generation via water electrolysis. Packaging, distribution, and purification methods are all factors that impact the purity of the gas that is provided to the customer.   

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Generator Capacity

The generator capacity is the maximum electrical power output for a given power generating unit, usually defined in Megawatts.

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Generator Casings

The enclosure for an electric power generator that defines the sealed space that contains the hydrogen gas used to provide cooling to the generator windings. 

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Generator Cooling

Hydrogen is used to cool the windings of large power plant generators because of hydrogen's high heat capacity and low density. Power plants utilizing hydrogen-cooled generators must maintain optimal hydrogen purity and pressure in the generator casing for proper operation, efficiency, safety, and equipment reliability. Continuous addition of ultra-pure hydrogen from a Proton Onsite hydrogen generation system to make up for hydrogen seal losses can optimize hydrogen purity and pressure for best operating performance and uptime.  

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Glass Processing

Glass processing is the production of large sheets of glass by floating molten glass on a bed of molten metal (typically tin).

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Green Initiatives

Counteracting the creation of greenhouse gases created from common activities and energy production by finding, producing, and utilizing clean alternative energy sources.

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Greenhouse Gas (GHG) Emissions

The release of harmful gases into the atmosphere that absorb infrared radiation, causing the atmospheric temperature to rise. Common greenhouse gases include: carbon dioxide, methane, and chlorofluorocarbon(s) (CFC). 

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Grid Parity

The point where an alternative energy source is cheaper than, or equal in cost, to purchasing power from the grid. Grid parity is determined through the measure of levelized cost of electricity.

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