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)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.