EN16001
European Standard stating the requirements of a management system for energy. Withdrawn in 2011 in favour of the International Standard ISO50001
EN16247
European Standard stating the requirements for energy audits. Read review.
Energy contents of fuels
See tabulation of calorific values
Energy Intensity Coefficient
Form of energy performance indicator which adjusts for variation in external variables such as weather, product mix, etc. and therefore only varies if true energy performance has changed. Calculated by dividing actual consumption by expected consumption. Now called Energy Performance Coefficient
Energy manager: job description
Download a single-page summary here [PDF]
Energy Performance Certificate
EPCs are required for UK buildings on construction sale or letting, and are intended to represent their theoretical energy demand. There is considerable doubt about their accuracy: see for example page 5 of this report from Jones Lang Lasalle and the Better Buildings Partnership (link posted Jan 2013)
Energy Performance Coefficient
Form of energy performance indicator which adjusts for variation in external variables such as weather, product mix, etc. and therefore only varies if true energy performance has changed. Calculated by dividing actual consumption by expected consumption (formerly known as Energy Intensity Coefficient: download detailed article)
Energy performance indicator (EnPI)
Usually a single numerical value intended to convey how energy-efficient a process or building is in operation. The attributes of a well-chosen EnPI are that (a) it only changes when something is done which alters energy performance; (b) it changes by an amount consistent with the change in energy performance and in a consistent direction; and (c) it is immune to changes in factors (weather, production, etc) which are known to cause changes in consumption. These requirements are met for example by the Energy performance coefficient (download detailed article).
Energy Savings Opportunity Scheme (ESOS)
UK government scheme for mandatory energy assessments which must be conducted by, or at least reviewed and signed off by, assessors who are on one of the approved registers. Click below to download:
the scheme guidance from the Environment Agency (V4);
suggested minimal reporting framework; and
participant declaration form (covers compliance points not normally covered by audit reports).
Equipment, recommended
See this recommended list of test instruments
ESTA
Energy Services and Technology Association (web site). Trade association for suppliers of energy-saving products and services.
Events, energy management
View a listing of training courses
Exception reports
More..
Expected consumption
Usually, depending on the context: either the consumption that should have been achieved if the installation had been operated with the minimum feasible energy input for the prevailing conditions, that is, without accidental losses or inefficiencies: or the consumption that would have occurred if the installation had been operating at historical efficiencies, that is, in the absence of any intervening energy-conservation measures. Learn more...