Glossary
The price for electricity in a wholesale electricity market that is necessary to provide the capacity needed to match demand in a five-minute ‘dispatch period’.
Western Australia’s independent economic regulator responsible for the regulation of monopoly infrastructure in the electricity, gas, and rail sectors. The Authority administers the energy industry licensing arrangements and approves the charges set by electricity transmission, electricity distribution, regulated gas transmission, and gas distribution pipeline owners in Western Australia.
Light efficiency is termed ‘efficacy’ and is measured in light output per unit of electrical input level, or lumens per Watt. In general, a higher efficacy means a higher efficiency. Each lamp type has different typical efficacy. However, a lamp’s initial efficacy is only one factor in an efficient lighting system. Luminaires, ballasts, spectral output, CRI, and brightness over the course of the lamps lifetime also strongly contribute to ensuring an effective lighting system with minimal energy consumption, as does a light’s ability to be switched or dimmed [1. Sustainability Victoria (2009) Energy Efficiency Best Practice Guide: Lighting].
The delivery of electricity from the extra high voltage transmission network to individual end users. See also Electricity Transmission.
A standardised exchange-based contract for difference that specifies the price and quantity of electricity that will be traded at a specified point in the future. These contracts are used to hedge financial risk rather than physically trade power. See also Contracts for Difference.
The bulk transport of electricity through extra high voltage power lines.
An electricity network, not owned by an electricity distributor, that is part of a multi-tenanted or strata titled building. The local distributor has an obligation to install meters that allow individual tenants and/or owners to select their own energy retailer and assign a network tariff to each meter. Where feasible, a single end-user can arrange for the individual meters to be consolidated to a single metering point within the building, thereby benefiting from lower network tariff costs than would apply to all the individual meters.
Prescribed activities included in Schedule 6 of the Renewable Energy (Electricity) Regulations 2001 that provide a partial exemption from Large-Scale Renewable Energy Target and Small-Scale Renewable Energy Scheme liabilities. See also Large-Scale Renewable Energy Target (LRET) and Small-Scale Renewable Energy Scheme (SRES).
These clearly show where energy is used, transformed and lost, and how the materials flow in correlation to energy use. They illustrate this across the site, processes and systems, items of equipment and miscellaneous equipment such as pipes and ducts.
Emissions attributable to consumption of electricity and combustion of fuels.
Functional skills in the energy efficiency assessment context are the practical skills needed in a range of discipline areas that allow individuals and teams to confidently and effectively complete energy efficiency assessments.
The delivery of gas from the transmission network to individual end users via (normally) low pressure pipelines. See also Gas transmission.
The process of extracting gas from natural gas fields or coal seams and processing it to remove impurities prior to injecting into the gas grid for ultimate delivery to end users.
A gas shipper is a party that contracts with gas pipeline owners to transport gas through the gas network from a producer to a supply point. A shipper would normally be an energy retailer or large end user.
The bulk transport of gas via high pressure pipelines.
A generic terms for entities that own and operate major electricity generating facilities and are active in the retail market.
Gigajoule (109 Joules).
An electricity trading arrangement used in the National Electricity Market where generators are required to sell all of the energy they produce. A gross pool market differs from a net pool market where generators only sell energy that they have not already sold through bilateral contracts. See also Net Pool Market.
A lease in which the tenant pays a flat sum for rent out of which the landlord must pay all expenses, including energy.
Operator of the wholesale electricity market in the South West Interconnected System of Western Australia including the electricity and capacity trading components. See also South West Interconnected System.