Jargon Buster

Jargon	Alternate Name(s)	Description
Active Power	Watt	The power attributed to the work related elements of the circuit (appliances).
Actual Timestamp	Meter Reading Date and Time	The timestamp (date-time combination) recorded by the logger to identify the moment when each reading was polled. (see also, Rounded Timestamp)
Aggregated Data		Pre-calculated daily totals stored in Sigma in preparation of analysis and reporting. In the case of low frequency reads, the daily totals are pro-rated.
Apparent Power	Volt-Ampere	The vector sum of active and reactive power.
Available Capacity	Availability, Agreed Capacity	The pre-agreed ceiling for electrical load between the consumer and the distributor of the supply.
Brown Electricity	Brown Fuel Mix	A common term used to used to describe the grid electricity fuel mix from all sources (ie. fossil fuel and nuclear generation form a proportion of the sources)
Cooling Degree Days	Cooling DD	A degree day measurement for energy expended to chill the air in a building to achieve the base value from the external temperature.
Core	MPAN Core	A 13 digit reference for a UK electricity supply number where the first 2 digits denote the Distribution Network Operator
Degree Days		A measure of temperature and time when the external temperature varied from the base value.
Drag and Drop		A computer user method to move or copy an object from one location to another by selecting and holding (click) an object, releasing the hold (unclick) when the pointer is over the destination.
Dry Bulb	DBT	The air temperature recorded when the thermometer is shielded from radiation and moisture.
Energy	Watt hours	The rate at which power is transferred.
Green Electricity	Green Fuel Mix	A common term used to describe the grid electricity fuel mix from renewable sources (ie. less environmental impact and eligible for some exemptions)
Heating Degree Days	Heating DD	A degree day measurement for energy expended to warm the air in a building to achieve the base value from the external temperature.
High Frequency		An Sigma data point with a read frequency more often than daily (ie. 30 Minutely, 15 Minutely, etc.)
Hyperlink	Hypertext	A reference that can be read directly by selecting the linked text.
JSON Tag		An identifier for a particular data set within an array of data transferred using the JSON format.
Load Factor		The average load over a date range divided by the maximum demand.
Low Frequency		An Sigma data point with a read frequency of daily or less often (ie. Monthly)
Maximum Demand	MD	The peak load applier across a date range.
Normal Site Exposure - Normal		The building is on level ground in urban or rural surroundings. It would be usual to have some trees or adjacent buildings.
Power	Watt	The rate at which work is done.
Power Factor	PF	The ratio between active and apparent power in a circuit.
Radio Button	Option Choice	A mutually exclusive selection from a series of choices.
Reactive Power	VAR (Volt-Ampere reactive)	The power attributed to non-work related elements in a circuit (capacitive or inductive elements).
Relative Humidity	RH	The ratio of the partial pressure of water vapour to the equilibrium vapour pressure at the same temperature.
Right-Click	Context Menu	A selection from the pointer using the "other" button (non- dominant) on a standard mouse controller.
Rollover	Clocked read	A cumulative reading that has accumulated beyond the number of digits of the logger's design (ie. 999999.9+)
Rounded Timestamp	Meter Reading Date and Time	The timestamp (date-time combination) recorded by Sigma to identify the time at the beginning of the data point’s interval for each reading polled by the logger. (see also, Rounded Timestamp)
Site Exposure - Exposed		Coastal and hilly sites with little or no adjacent screening.
Site Exposure - Sheltered		The building is in a built-up area with other buildings of a similar height or greater surrounding it
String		A sequence of characters that stores literal or encoded meaning.
Thumbnail		A reduced size version of a picture used to help recognition.
Timestamp	Date and Time, Read Date	The combination of date and time in used to record the moment a reading was polled from a meter. A low frequency meter will be acknowledge as midnight (01/01/2000 00:00)
Top Line	MPAN Top Line	A combination of the profile class, meter time code and line loss factor (PC, MTC, LLF) to classify a UK electricity supply number.
Transco	National Grid	The network transported for the UK gas supply network.
Wet Bulb	WBT	The minimum air temperature achievable in the ambient conditions by the evaporation of water.
Wildcard		A character used to substitute for others in a search.
Wizard	WIZAD	A type of user interface that presents a sequence of dialog boxes leading a user through a series of well-defined steps.