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Energy Glossary
企业 / ... / 支持 Energy Glossary

    Energy Glossary

    Learn more about Use-of-System (UoS) and other commonly used energy terms.

    How is Transmission Loss Factor (TLF) calculated?
    The Transmission Loss Factor (TLF) is calculated by the Market 支持 Services Licensee, SP Services 有限公司 in accordance with the methodology approved by the regulator, the Energy Market Authority of Singapore.
    What is Use-of-System (UoS) Charge?

    美国se-of-System (UOS)收费s is 第三个,party distribution 负责 imposed by and payable to SP Group. 电荷s recover the cost of operation and 维护 a safe and reliable distribution network to 传输 electricity on the national power grid to end users. 美国O年代电荷s是 reviewed annually by SP Group and 不同 according to the voltage at which the electricity is supplied. 

    点击 在这里 to view the latest UO年代电荷s from 1 April 2023 to 31 Mar 2024.

    Common Energy Terms

    法新社电荷
    This is the 负责 for the recovery of the cost incurred for the procurement of Regulation. Regulation is energy needed to fine-tune between the generation and consumption of electricity on a half-hourly basis.
    Barrel (petroleum)
    A volumetric unit of measure for crude oil and petroleum products equivalent to 42 U.S. gallons (306 pounds of oil, or 5.78 million Btu).
    锅炉
    A vessel or tank w在这里 heat produced from the combustion of fuels such as natural gas, 燃油, or coal is used to generate hot water or steam for applications ranging from building space heating to electric power production or industrial process heat.
    电容器
    An electrical device that adjusts the leading current of an applied alternating current to balance the lag of the circuit to provide a high-power factor.
    能力
    The load that a power generation unit or other electrical 装置 or heating unit is rated by the manufacture to be able to meet or supply.
    Circuit Breaker
    A device used to interrupt or break an electrical circuit when an overload condition exists; usually installed in the positive circuit; used to protect electrical equipment.
    联合循环
    An electric generating technology in which electricity is produced from otherwise lost waste heat exiting from one more gas (combustion) turbines. The exiting heat is routed to a conventional boiler or to a heat recovery steam generator for utilization by a steam turbine in the production of electricity. This process increases the efficiency of the electric generating unit.
    调试
    The process by which a power plant, 装置, or building is approved for operation based on observed or measured operation that meets design specifications.
    管道
    A tubular material used to encase and protect one or more electrical conductors.
    可竞争性
    The right to choose among electricity retailers for electricity purchase. A contestable customer has the right to choose how and whom they want to buy electricity from.
    需求
    The rate at which electricity is delivered to or by a system, part of a system, or piece of equipment expressed in kilowatts, kilovolt amperes, or other suitable unit, at a given instant or averaged over a specified period.
    Distribution System
    That portion of an electricity supply system used to deliver electricity from points on the transmission system to consumers.
    功效
    The amount of energy service or useful energy delivered per unit of energy input. Often used in reference to lighting systems, w在这里 the visible light output of a luminary is relative to power input; expressed in lumens per Watt; the higher the efficacy value, the higher the energy efficiency.
    EMC Admin Charge
    EMC (Energy Market Company) operates the wholesale electricity market. EMC runs the electricity pool and manages the energy settlement processes. This is a usage-based 负责 calculated using loss adjusted data.
    能源审计
    A programme w在这里by an energy auditor or energy auditing company inspects a facility or premise to assess the energy use and suggest ways of saving energy.
    Energy Market Authority (EMA)
    The regulator of the electricity and gas industry in Singapore.
    Energy Market Company (EMC)
    The company that operates and administers the wholesale electricity market.
    给料机
    A power line for supplying electricity within a specified area.
    保险丝
    A safety device consisting of a short length of relatively fine wire, mounted in a holder or contained in a cartridge and connected as part of an electrical circuit. If the circuit source current exceeds a predetermined value, the fuse wire melts (i.e. the fuse 'blows') breaking the circuit and preventing damage to the circuit protected by the fuse.
    十亿瓦(GW)
    A unit of power equal to 1 billion Watts; 1 million kilowatts, or 1,000 megawatts.
    网格
    A system of interconnected power lines that transport electricity from generators to consumers.
    Installed 能力
    The total capacity of electrical generation devices in a power station or system.
    绝缘子
    A device or material with a high resistance to electricity flow.
    负载
    The amount of electrical power required by a consumer.
    负荷系数
    The ratio of average energy demand (load) to maximum demand (peak load) during a specific period.
    负载 Profile or Shape
    A curve on a chart showing power (kW) supplied (on the horizontal axis) plotted against time of occurrence (on the vertical axis) to illustrate the variance in a load in a specified time period.
    Market 支持 Services (MSS)
    These are services such as the buying of electricity indirectly from the wholesale electricity market for contestable consumers at spot prices, reading meters, managing meter data, administering transfer processes, and providing electricity to non-contestable consumers at regulated tariffs.
    Market 支持 Services (MSS) Charges
    Charges to cover the costs of market support services, such as transfer processing fees, meter reading fees, 等.
    Market 支持 Services Licensee (MSSL)
    The company that is licensed to provide market support services SP Services 有限公司 is the MSSL.
    天然气
    A hydrocarbon gas obtained from underground sources, often in association with petroleum and coal deposits. It generally contains a high percentage of methane, varying amounts of ethane, and inert gases; used as a heating fuel.
    Non-Contestable Consumers
    Consumers who are required to buy electricity from the MSSL at regulated tariffs.
    Off-Peak Period and Peak Period
    The period of time when t在这里 is relatively low demand for electricity (off-peak), as opposed to the period of time when t在这里 is maximum demand for electricity (peak).
    PSO Admin Charge
    PSO (Power System Operator) is responsible for the security and reliability of the transmission system. All customers pay a usage-based fee for the provision of this service.
    监管机构
    The statutory body that regulates the electricity industry in Singapore. The Energy Market Authority is the regulator.
    Renewable Energy
    Energy derived from resources that are regenerative or for all practical purposes cannot be depleted. Types of renewable energy resources include moving water (hydro, tidal and wave power), thermal gradients in ocean water, 生物质, geothermal energy, 太阳能, and wind energy.
    短路
    An electric current taking a shorter or different path than intended.
    变电站
    An electrical installation containing power conversion (and sometimes generation) equipment, such as transformers, 补偿器, and circuit breakers.
    变压器
    An electromagnetic device that changes the voltage of alternating current electricity. It consists of an induction coil having a primary and secondary winding and a closed iron core.
    Transmission Charges
    电荷s for the use of the transmission system to deliver electricity to consumers’ premises. Transmission 负责s是 regulated by the regulator.
    Transmission and Distribution Losses
    The losses that result from in在这里nt resistance in electrical conductors and transformation inefficiencies in distribution transformers in a transmission and distribution network.
    Vesting 合同
    Bilateral contracts between generation companies and MSSL for the production and sale of a specified quantity of electricity at a specified price (known as the “vesting price”). Vesting contracts是 imposed by the regulator to curb market power of generation companies.
    Vesting Debit/Credit
    Reflected in MSSL’s bill to contestable consumers buying electricity from the wholesale market through MSSL. It is the difference between spot prices and vesting price on the demand that is covered by vesting contract.
    Wholesale Electricity Market
    An electricity market w在这里 generation companies compete to sell electricity.
    Wholesale Electricity Price (WEP)
    When buying electricity directly or indirectly from the National Electricity Market of Singapore (NEMS), one’s electricity price comprises of 6 components with USEP being by far the largest of the 6 components. The other components是 the Hourly Energy Uplift Charge (HEUC), the Monthly Energy Uplift Charge (MEUC), the Allocated Regulation Price (AFP), PSO admin fees and EMC admin fees.