Common Electricity Terms

Advanced Metering Charge

A charge assessed to recover a TDU’s charges for Advanced Metering Systems, to the extent that they are not recovered in a TDU’s standard metering charge.

Air Pollution

The presence of contaminants in the air in concentrations that prevent the normal dispersive ability of the air, and that interfere with biological processes and human economics.

Annual Solar Savings

The annual solar savings of a solar building is the energy savings attributable to a solar feature relative to the energy requirements of a non-solar building.

Appliance Energy Efficiency Ratings

The ratings under which specified appliances convert energy sources into useful energy, as determined by procedures established by the U.S. Department of Energy.

Array (Solar)

Any number of solar photovoltaic modules or solar thermal collectors or reflectors connected together to provide electrical or thermal energy.

Audit (Energy)

The process of determining energy consumption, by various techniques, of a building or facility.

Average Demand

The demand on, or the power output of, an electrical system or any of its parts over an interval of time, as determined by the total number of kilowatt-hours divided by the units of time in the interval.

Average Cost

The total cost of production divided by the total quantity produced.

Base Charge

A charge assessed during each billing cycle without regard to the customer’s demand or energy consumption.

British Thermal Unit (BTU)

The amount of heat required to raise the temperature of one pound of water one degree Fahrenheit; equal to 252 calories.


The load that a power generation unit or other electrical apparatus or heating unit is rated by the manufacture to be able to meet or supply.

Clean Power Generator

A company or other organizational unit that produces electricity from sources that are thought to be environmentally cleaner than traditional sources. Clean, or green, power is usually defined as power from renewable energy that comes from wind, solar, biomass energy, etc. There are various definitions of clean resources. Some definitions include power produced from waste-to-energy and wood-fired plants that may still produce significant air emissions. Some states have defined certain local resources as clean that other states would not consider clean. For example, the state of Texas has defined power from efficient natural gas-fired power plants as clean. Some northwest states include power from large hydropower projects as clean although these projects damage fish populations. Various states have disclosure and labeling requirement for generation source and air emissions that assist customers in comparing electricity characteristics other than price. This allows customers to decide for themselves what they consider to be “clean.” The federal government is also exploring this issue.

Demand Charge

A charge for the maximum rate at which energy is used during peak hours of a billing period. That part of a power provider service charged for on the basis of the possible demand as distinguished from the energy actually consumed.

Distribution System

That portion of an electricity supply system used to deliver electricity from points on the transmission system to consumers.

Electric System Loss(es)

The total amount of electric energy loss in an electric system between the generation source and points of delivery.

Electric Utility

A corporation, person, agency, authority or other legal entity that owns and/or operates facilities for the generation, transmission, distribution or sale of electricity primarily for use by the public. Also known as a power provider.


The capability of doing work; different forms of energy can be converted to other forms, but the total amount of energy remains the same.

Energy Audit

A survey that shows how much energy you use in your house or apartment. It will help you find ways to use less energy.

Energy Charge

That part of an electricity bill that is based on the amount of electrical energy consumed or supplied.


The Federal Energy Regulatory Commission, or FERC, is an independent agency that regulates the interstate transmission of electricity, natural gas, and oil.

Gross Receipts Tax (GRT)

A fee assessed to recover the miscellaneous gross receipts tax imposed on retail electric providers operating in an incorporated city or town having a population of more than 1,000.

Kilowatt (KW)

A standard unit of electrical power equal to one thousand watts.

Kilowatt Hour (KWH)

A unit or measure of electricity supply or consumption of 1,000 Watts over the period of one hour; equivalent to 3,412 Btu.

Nuclear Energy

Energy that comes from splitting atoms of radioactive materials, such as uranium, and which produces radioactive wastes.

Public Utility Commission or Public Services Commission (PUC OR PSC)

These are state government agencies responsible for the regulation of public utilities within a state or region. A state legislature oversees the PUC by reviewing changes to power generator laws, rules and regulations and approving the PUC’s budget. The commission usually has five Commissioners appointed by the Governor or legislature. PUCs typically regulate: electric, natural gas, water, sewer, telephone services, trucks, buses, and taxicabs within the commission’s operating region. The PUC tries to balance the interests of consumers, environmentalists, utilities, and stockholders. The PUC makes sure a region’s citizens are supplied with adequate, safe power provider service at reasonable rates.


A regional transmission organization or independent system operator (RTO or ISO) serves as a third-party independent operator of the transmission system.


Transmission and distribution utility.






As a distributed energy company, one of our primary products is electricity. It doesn’t stop there; we have a unique commitment to alternative energies, promoting of conservation and renewable resources.

Natural Gas


Natural Gas


Natural Gas is a rapidly rising star in energy. Not only a source that reduces carbon emissions, but also a cost-effective option for energy. As we step forward toward carbon neutral energy, natural gas is showing itself as a critical commodity.





The arcs (values) of our company are leading, innovative, forward thinking, and enduring. Solar is the shining example of our arcs. As solar power continues to revolutionize the energy industry we will be there with every step.

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