Natural Gas

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CME Group

CME Group is an American global markets company. It is important because it operates many key energy futures markets in the U.S.

Coincident peak demand

Coincident peak demand is the demand of a customer or group of customers at the time of the electric or gas system’s peak demand.

Combined-cycle gas turbine

A highly efficient way to use gas to generate electricity is to combine a gas combustion turbine with a steam turbine in a power plant called a …

Commercial customer class

Gas and electric utility rate structures and regulatory rules typically classify commercial customers as a unique class. Commercial customers in …

Commodity

A commodity is a product that is mass produced and unspecialized, and as such it is easily interchangeable with a similar product from another s …

Complaint case

Consumers or other affected parties can file a complaint with the relevant regulatory authority if they believe that a utility or other regulate …

Compressed natural gas (CNG)

CNG is natural gas that has been compressed to a pressure of 3,000 to 3,600 pounds per square inch (psi) so that the gas takes up less than 1% o …

Compressor

A compressor is a machine that is used to increase the pressure of natural gas.

Compressor station

Compressors and related equipment on a transmission system are contained in compressor stations. Stations consist of one or more compressors, ty …

Construction work in progress (CWIP)

Construction work in progress, commonly called CWIP, is a balance sheet account in which all costs associated with the construction of new utili …

Conventional gas supply

Conventional natural gas is produced from a well drilled into a geological formation in which the reservoir and fluid characteristics permit the …

Core customers

Customers considered to be core customers are those who lack alternatives to utility gas supply or choose to not participate in competitive supp …

Corrosion

Corrosion is the natural process in which materials made from metal deteriorate through an electrochemical reaction known as oxidation (more com …

Cost of capital proceeding

The first step in the utility ratemaking process is to determine the utility’s authorized rate of return or its cost of capital. This is set b …

Cost-of-service ratemaking

Cost-of-service ratemaking sets rates based on forecasted costs of providing service plus a “reasonable” rate of return on the equity invest …

Cubic foot

A cubic foot, or cf, is the most common unit of measurement of gas volume.

Customer class

End users of gas or electricity traditionally have been categorized according to the rate class they were placed in by their local utility. Comm …

Debt

Investor-owned utilities and other publicly traded companies typically finance their capital needs with a combination of debt and equity. Munici …

Demand response (DR)

Demand response, or DR, is a form of demand side management (DSM) that reduces demand during specific times or shifts demand across time.

Demand side management (DSM)

Demand side management (DSM) is the modification of consumer demand for energy. There are two broad categories of DSM: energy efficiency (EE) an …