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Other tools can be downloaded from the GHG Protocol website
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 GHG Protocol Guide to Definitions
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This tool implements emission factors specific to many different types of fuels and sectors. To help you understand which emission factors most closely meet your needs, browse our definitions for our fuels and sectors:
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Fuels:
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Please select a fuel:Gas works gas
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Gas works gas covers all types of gases produced in public utility or private plants, whose main purpose is manufacture, transport and distribution of gas. It includes gas produced by carbonization (including gas produced by coke ovens and transferred to gas works gas), by total gasification with or without enrichment with oil products (LPG, residual fuel oil, etc.), and by reforming and simple mixing of gases and/or air. It excludes blended natural gas, which is usually distributed through the natural gas grid.
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Sectors:
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Please select a sector:Energy
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Fuel extraction or energy-producing industries. Examples include public utilities and petroleum refineries, as well as industries that generate secondary and tertiary products, such as charcoal, from solid fuels.
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(Source: IPCC 2006 Guidelines for National Greenhouse Gas Inventories)
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