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Glossary - D
The utilities industry is awash with jargon and apparently meaningless abbreviations. We aim to explain what some of them mean. Please use either the search box (above and left) or the A to Z matrix to the right.
Displaying 1 - 10 of 12 definitions.
- Daily metered
- A gas supply point whose consumption is measured each day by means of a data logger
- Daily metered customer
- An interruptible gas supply point or a gas supply point with an annual consumption greater than 58,600,000kWh which is individually nominated each day by a shipper.
- Data aggregator
- The organisation appointed to aggregate electricity meter reading data received from data collectors to forward to suppliers.
- Data collector
- The organisation responsible for collecting, processing and validating the meter reading data which is then passed on to the data aggregator.
- Data Logger
- A data logger is a device which directly connects to either a gas, electricity or water meter to constantly record usage (i.e. to show when a utility was used, and how much was used). Data loggers can also contain communication equipment (often using GSM mobile technology) to enable them to send the data to a remote collection point. Those loggers without communication links need to be visited regularly so that the data can be downloaded to a PC, laptop or PDA type device.
- DEC
- Display Energy Certificates - From 01 October 2008 all large public sector buildings in the UK will have to display a Display Energy Certificate which will show up to 3 years data on the energy used in that building."Large" is defined in the regulations as over 1,000 square metres, and the requirements apply to all Local Authority buildings and to public sector buildings with a significant numbers of visitors.Certificates must be supplied by an accredited assessor, who will also issue an advisory report that the occupier must retain.Failure to display the certificate may lead to a penalty charge of £500 and failure to retain the report to a charge of £1000.
- DECT
- DECT or Digital Enhanced Cordless Telecommunications is an ETSI standard for digital portable phones, commonly used for domestic or corporate purposes. DECT can also be used for wireless data transfers. DECT is recognised by the ITU as fullfilling the IMT-2000 requirements and thus qualifies as a 3G system, as a part of the IMT-2000 group of technologies, DECT is also referred to as IMT-FT (Frequency Time).
- Demand level
- The consumption of electricity in half-hourly intervals actually used on a national basis.
- Demand side management
- Refers to measures that can be taken on the customer's side of the meter to change the arnount or timing of consumption.
- Distribution losses
- Charges relating to electrical losses that occur as electricity is transmitted through the lines of the DNO (see below).