12-month stripPrices for the next 12 months of consecutive natural gas futures trading contracts, usually starting with the nearest, or prompt, month.
Active tradersMarket participants who trade frequently, often many times a day, and therefore are attune to the ebbs and flows, the rumors, breaking news, activities of…
Ancillary servicesThose services necessary to support the transmission of electric power from seller to purchaser, given the obligations of control areas and transmitting…
ArbitrageArbitrage is the technique of simultaneously buying at a lower price in one market and selling at a higher price in another market to make a profit on the…
Automated mitigation procedureA procedure under which the bids of individual suppliers are capped under certain predetermined conditions.
Automatic generation controlThe automatic regulation of the power output of electric generators within a prescribed range in response to a change in system frequency, or tie-line…
AvailabilityA reflection of the form and location of nutritional elements and their suitability for absorption.
BalancingThe requirement imposed by electricity grids or natural gas pipelines that supply and demand be equal over a certain time period.
baselineAn initial measurement that is taken at an early time point to represent a beginning condition, and is used for comparison over time to look for changes.
BaseloadThe minimum level of electric power demand of a utility, region, or utility customer delivered or required over a given period of time at a steady rate…
Baseload UnitAn electric power plant, or generating unit within a power plant, that is normally operated continuously to meet the base load of a utility.
BasisBasis is the total cost of buying an investment or other asset, including the price, commissions, and other charges.
Basis SwapsExchange of fixed price for a floating for a defined basis product (e.g. a Houston Ship Channel – HSC Swap at $1.
Bid-ask differential, or spreadThe difference in price between what a buyer offers to pay for a commodity and what a seller offers to accept for a commodity, sometimes referred to as…
Bilateral transactionA direct contract between a seller and buyer outside of a centralized market or exchange (e.g. Nymex or an RTO/ISO).
British thermal unit (Btu)(BTU)The amount of heat required to raise the temperature of one pound of water one degree Fahrenheit; equal to 252 calories.
BrokerAn agent who handles the public's orders to buy and sell securities, commodities or other property. A commission is generally charged for this service.
BusA parallel circuit that connects the major components of a computer, allowing the transfer of electric impulses from one connected component to any other.
CapacityYour ability to make your mortgage payments on time. This depends on your income and income stability (job history and security), your assets and savings…
Capacity factorThe ratio of the average load on (or power output of) a generating unit or system to the capacity rating of the unit or system over a specified period of…
Capacity marginThe amount of capacity above planned peak system demand available to provide for scheduled maintenance, emergency outages, system operating requirements…
Capacity marketsA market for the trading of capacity credits (the ability to produce electricity in the market area during a defined period) usually between parties…
Centralized ExchangeA market where market participants execute all transactions with the central entity operating under a set of rules (product specifications, execution…
City GateGenerally refers to the location at which gas changes ownership or transportation responsibility from a pipeline to a local distribution company or gas…
ClearingThe registration and settlement of a trade that includes provisions for margin requirement and performance guarantee.
Coalbed methaneA methane-rich gas, similar to natural gas, produced from in-situ coal through drilled wells that are typically completed open-hole, as opposed to the…
CollateralAssets that are offered to secure a loan or other credit. For example, if you get a real estate mortgage, the bank's collateral is typically your house.
Combined-cycle power plantA power plant that uses two thermodynamic cycles to achieve higher overall system efficiency; e.g.
Combustion turbineA turbine that generates power from the combustion of a fuel.
CongestionA characteristic of the transmission system produced by a constraint on the optimum economic operation of the power system, such that the marginal price…
Congestion costsCharges assessed and redistributed due to electricity network constraints.
Control areaAn electric power system or combination of electric power systems to which a common automatic control scheme is applied in order to: Match, at all times…
Cooling degree days (CDD)(CDD)A measure of cooling energy demand determined by how far a location's temperature averaged above 65 degrees Fahrenheit.
CounterpartyIn any financial contract, the persons or institutions entering the contract on the opposite sides of the transaction are called the counterparties.
CreditCredit generally refers to the ability of a person or organization to borrow money, as well as the arrangements that are made for repaying the loan and…
Credit clearingA mechanism for settling mutual claims that shares among many parties the risk of a company failing to fulfill its contract.
Credit ratingYour credit rating is an independent statistical evaluation of your ability to repay debt based on your borrowing and repayment history.
Credit RiskA term used to describe the possibility of default on a loan by a borrower.
Credit ScoreA number, roughly between 300 and 800, that measures an individual's credit worthiness. The most well-known type of credit score is the FICOî score.
Critical noticesPipeline issuances that provide information on conditions that affect natural gas scheduling or adversely affect scheduled gas flow.
Curtailable loadElectricity deliveries that are subject to interruption by the grid operator.
Daily (or Next-Day) IndexesPublished (Platts, NGI, Dow Jones, SNL, ICE, NGW) price indices for commodities (gas or electricity) to be delivered the next day based on transactions…
Daily DealsUsually transactions done on a day for delivery or settlement or both, the next day.
Day-ahead marketsForward markets for electricity to be supplied the following day. This market closes with acceptance by the independent system operator, power exchange…
Debt financingProviding capital by selling bonds, bills, or notes to individuals or institutions.
Delivery Point(s)An industry-designated location at which delivery may be made in fulfillment of contract terms.
DemandForm PCT/IPEA/401, filed with an International Preliminary Examining Authority, demanding that an international application shall be the subject of an…
Demand elasticityThe degree to which demand changes relative to a change in price.
Distillate fuel oilProducts of refinery distillation sometimes referred to as middle distillates; kerosene, diesel fuel, and home heating oil. No.
Dual-fueled (or dual-fired) unitA generating unit that can produce electricity using two or more fuels. In some of these units, only the primary fuel can be used continuously; the…
Electric utilitiesAll enterprises engaged in the production and/or distribution of electricity for use by the public, including investor-owned electric utility companies…
Electronic trading platformAn electronic system matching bids (to buy) and offers (to sell), increasingly employed in many venues (Nymex, ICE, voice brokers, index-forming…
Equity financingProvision of capital through the sale of common or preferred stock to investors.
ExchangeAn exchange generally occurs when one company acquires another. The shareholders of the acquired company are often given the option to sell their shares…
Financial liquidityAn entity’s ability to obtain funds to meet its cash flow obligations, with consideration for the speed with which such funds can be obtained.
Financial marketsMarkets where financially settled products (instruments) are traded (bought and sold).
Financial transactionA transaction that involves only the exchange of money, with no physical delivery.
Financial transmission rightA contract that entitles the holder to receive or pay compensation for transmission charges that arise when grid congestions cases price differences due…
Financially settledConsummated exclusively by an exchange of funds, without the potential of exchange – or actual exchange – of commodities or other things of value.
Firm transportationEnergy network service assuring market participants of a specified quality and quantity of service under normal operating conditions.
First Contingency Reliability CriteriaThe requirement that an electric system be planned and operated so that it can safely withstand the loss of the largest single system element (i.e.
Fixed price transactionsBuying or selling a commodity at a fixed price. For example, fixed physical gas prices are used to form indices at some locations; and fixed basis prices…
Floating price transactionsBuying or selling a commodity at a price that is not fixed and will be set by mutual agreement, usually based a published price index.
Floating StorageUse of LNG tanker ships for LNG storage, rather than simply for transportation, to take advantage of temporal and geographic LNG price differences.
Forward price curveThe set of prices of contracts for delivery of a good over a span of time in the future.
Fuel-adjustment clauseA provision of a power sales agreement or rate schedule that allows for the electricity price to be changed based on changes in the price of the fuel used…
Futures marketA market in which contracts for future delivery of a commodity or a security are bought and sold.
Gas turbineA type of turbine in which combusted, pressurized gas is directed against a series of blades connected to a shaft, which forces the shaft to turn to…
GenerationThe electricity generated by a system as recorded by a KWH meter, recorded in KWH or MWH.
GeneratorA device for converting mechanical energy to electrical energy.
Gigawatt (GW)(GW)A unit of power equal to 1 billion Watts; 1 million kilowatts, or 1,000 megawatts.
Globex (GW)(GW)The electronic trading platform for the Chicago Mercantile Exchange (CME). Since Sept.
Heat rateThe ratio of fuel energy input as heat per unit of net work output; a measure of a power plant thermal efficiency, generally expressed as Btu per net…
Heating degree days (HDD)(HDD)A measure of heating demand equal to the number of degrees a location’s mean daily temperature was below 65 degrees Fahrenheit.
HedgingHedging is an investment technique designed to offset a potential loss on one investment by purchasing a second investment that you expect to perform in…
Henry HubA location near the coastal town of Egan, LA and the Texas border where more than a dozen major natural gas pipelines converge and exchange gas.
HubA network device that connects multiple computers/peripherals together and allows them to share data.
Imbalance energyDiscrepancy between the amount that a seller contracted to deliver and the actual volume of power delivered.
Independent System Operator (ISO)(ISO)An independent, Federally regulated entity established to coordinate regional transmission in a non-discriminatory manner and ensure the safety and…
IndexStatistical measure of the state of the stock market or economy based on the performance of stocks or other components.
Injection seasonThe period from April 1 through October 31, during which gas is injected into natural gas storage reservoirs in preparation for withdrawal and use during…
Installed capacityThe total capacity of electrical generation devices in a power station or system.
IntercontinentalExchange (ICE)(ICE)An exempt exchange under CFMA 2000. It is exempt from many reporting requirements that are required of Nymex.
Interruptible or nonfirm transportationTransmission service that is reserved and scheduled on an as–available basis and is subject to curtailment or interruption.
IntertieThe point of physical interconnection between adjacent transmission systems.
Kilowatt (kW)(kW)A standard unit of electrical power equal to one thousand watts, or to the energy consumption at a rate of 1000 Joules per second.
Kilowatthour (kWh)(kWh)A measure of electricity defined as a unit of work or energy, measured as 1 kilowatt (1,000 watts) of power expended for 1 hour.
Liquefied natural gas (LNG)(LNG)Reducing the temperature of natural gas to -259 degrees Fahrenheit at atmospheric pressure will convert the gas into a liquid, with a volume about 1/600…
LoadCommissions charged on the purchase or sale of mutual fund units.
Load controlThe process of managing demand requirements in order to achieve a desired load pattern.
Load factorThe ratio of average energy demand (load) to maximum demand (peak load) during a specific period.
Load pocketAn area often dependent on transmission for reliable electric system operation because the area’s load often exceeds the generation in the area.
Load SheddingTurning off or disconnecting loads to limit peak demand.
Load-serving entity (LSE)(LSE)Any entity, including a load aggregator or power marketer, that serves end-users within a control area and has been granted the authority or has an…