Top: Science: Energy: Bioenergy: Terminology: L

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Landfill gas

A type of biogas that is generated by decomposition of organic material at landfill disposal sites. Landfill gas is approximately 50 percent methane. See also biogas.


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Levelized life-cycle cost

The present value of the cost of a resource, including capital, financing and operating costs, expressed as a stream of equal annual payments. This stream of payments can be converted to a unit cost of energy by dividing the annual payment amount by the annual kilowatt-hours produced or saved. By levelizing costs, resources with different lifetimes and generating capabilities can be compared.


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Lignin

Structural constituent of wood and (to a lesser extent) other plant tissues, which encrusts the cell walls and cements the cells together. 



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