Capstone Energy Services

Energy Basics

Terms A-Z


Entity which sells natural gas or electricity it has purchased from a producer or other seller.

Marketing Affiliate

A marketing company that has corporate ties to an interstate pipeline, an intrastate pipeline, or a local distribution company.

Market-Based Pricing

Electric service pricing determined in an open market environment determined by available supply and demand of power at any given time. For gas, the basing of a contract or rate schedule on published current market prices of competing supplies of natural gas or alternate fuels.

Maximum Demand

The highest demand that occurs within a specified period of time.

Maximum Transportation Rate

The maximum transportation rate that an open-access interstate natural gas pipeline transporter may charge for its services.


The quantity of natural gas occupying a volume of one thousand cubic feet at a temperature of sixty degrees Fahrenheit and at a pressure of fourteen and seventy-three hundredths pounds per square inch absolute.


The term MDQ refers to maximum daily quantity of gas which a buyer, seller, or transporter is obligated to receive or deliver at each receipt or delivery point or in the aggregate as specified in an agreement.

Measuring and Regulating Station

Facilities installed at a given location for measuring and regulating the flow of gas in connection with distribution system operations other than the measurement of gas deliveries to customers.

Megawatt (MW)

One million watts.

Megawatt hour (MWh)

One million watt hours.

Meter, Gas

An instrument for measuring and indicating or recording the volume of gas that has passed through it.


A thermal unit of energy equal to 1,000,000 Btus, that is, the equivalent of 1,000 cubic feet of gas having a heating content of 1,000 Btus per cubic foot, as provided by contract measurement terms. One MMbtu = One Dekatherm.


One million cubic feet.

Energy Facts

Energy Facts

Natural gas can be used as a raw material in a variety of products, including paint, fertilizer, plastics and medicines.

Natural gas produces fewer emissions than other fossil fuels, with less nitrogen, sulfur, carbon and fine particulates.

Texas produces the largest amount of natural gas in the USA.

The biggest consumer of coal in the US is the electric power sector.

There are 17,658 electric utility generators in the USA.

Energy Delivery Chains

Energy Delivery Chains

Find out more about how your energy is produced and delivered to your business.

Learn More

Energy & the Environment

Energy & the Environment

How we assist clients in responding to national environmental concerns.

  • Initiate and manage a "Green" energy procurement program
  • Evaluate national legislative and regulatory initiatives
  • Research state and local energy efficiency programs and incentives
  • Track energy use and related emissions estimate