Capstone Energy Services

Energy Basics

Terms A-Z

Electric Plant (Physical)

A facility containing electric generators, and auxiliary equipment for creating electric energy.

Electric Rate Schedule

A statement of the rates and the associated terms and conditions for sale and delivery of electric power within a defined service territory.

Electric Service Provider

An entity that provides electric service to a retail or end-use customer.

Electric Utility

An entity that owns and/or operates facilities for the generation, transmission, distribution, or sale of electric energy. Facilities that qualify as co-generators or small power producers under the Public Utility Regulatory Policies Act (PURPA) are not considered electric utilities.

Electronic Gas Measurement (EGM)

"Real time" monitoring of natural gas quantities.


A consumer of natural gas and electricity.


The capacity for doing work as measured by the capability of doing work (potential energy) or the conversion of this capability to motion (kinetic energy). Energy has several forms, some of which are easily convertible and can be changed to another form useful for work. Most of the world's convertible energy comes from fossil fuels that are burned to produce heat that is then used as a transfer medium to mechanical or other means in order to accomplish tasks. Electrical energy is usually measured in kilowatt hours, while heat energy is usually measured in British thermal units.

Energy Charge

That portion of the charge for electric service determined by the volume of electric energy (kWh) consumed or billed.

Energy Efficiency

Refers to programs aimed at reducing the energy used by specific end-use devices and systems.

Energy Source

The primary source that provides the power that is converted to electricity. Energy sources include coal, petroleum products, natural gas, water, uranium, wind, sunlight, geothermal, and other sources.

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.

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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