sustainability - SUNY College of Environmental Science and Forestry

Sustainability 2011 , 3
1938

Nomenclature

SEA or EIN - total system energy use

dSEA - change from prior SEA level

EiW - world average energy intensity per dollar GDP

$Ejk - business costs of kth item in the jth business unit

EEjk - economic energy of kth item of jth business unit

Eiiij - relative economic fuel use intensity factor

$Tjk - energy use value of kth item of jth business unit

TEjk - tech energy of kth item in the jth business unit

Tiiij - relative technology fuel use intensity factor

Eout - energy produced

EROI - energy return on energy invested

LCOE - levelized cost of electricity

MREI - monetary return on energy invested

LCA - life cycle assessment

LCAE - life cycle assessment energy

TEA - total environmental assessment

PTC - production tax credit

NPV - net present value

IRRe - internal rate of return for energy

Abbreviations

wt

est

tot

val

avg

yr

equip

invest

insur

tech

weight

estimate

total

value

average

year

equipment

investment

insurance

technology

ACM class: E.0; H.1.0; J.2; J.4–(acm.org)
MCS class: 28D05; 18A15; 03C35–(ams.org)

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