ESI I.D. (electric service identifier)
A unique 17- or 22-digit number in the ERCOT market given to an electricity delivery point by the TDSP, usually visible on your electric meter. You can find this number on your Reliant electricity bill (second page, in the Account Information section) or in your online Reliant account (on your Plan page, under the plan name).
You pay a certain rate for electricity, usually per kilowatt hour (kWh) of usage, each billing cycle. On a fixed rate plan, the price you pay per kWh will stay the same for the duration of your contract. This is different from a variable price plan, where the price can change from one billing cycle to the next.
The production of electricity. In Texas, electricity is produced using a number of energy sources, including natural gas, coal, nuclear power, wind, water and solar energy.
An abbreviation for the heating, ventilation and air-conditioning system, which is the system or systems that condition air in a building.
Incandescent light bulbs
An incandescent light bulb or lamp is a source of electric light produced by a filament heated by an electric current. Governments around the world are phasing out incandescent light bulbs in favor of more energy-efficient lighting alternatives, such as compact fluorescent light bulbs (CFLs).
Local wires company
The company that transmits and delivers electricity to a customer's home or business along the electrical poles and wires. The local wires company is responsible for maintenance and repair of these poles and wires and is also referred to as the transmission and distribution service provider (TDSP).
A unit of measurement of light energy. Specifically, lumens measure the amount of light a lamp produces in all directions.
A device that measures the amount of electrical energy consumed by a residence, business or an electrically powered device. Utility companies (or TDSPs) read meters to determine how much electricity each customer used. Types of electricity meters include digital meters and smart meters.
A period of relatively low system demand for electricity. These periods often occur in daily, weekly and seasonal patterns. The use of smart meter technology has allowed electricity companies to offer new products that take advantage of off-peak pricing periods.
Periods of relatively high system demand for electricity. These periods often occur in daily, weekly and seasonal patterns.
Public Utility Commission of Texas (PUC or PUCT)
The state agency responsible for the regulation and oversight of electricity and local telecommunication services in Texas. In Texas' deregulated market, the PUC still regulates the delivery of electricity and enforces customer protections.
A measure of the resistance of an insulating or building material to heat flow, expressed as R-11, R-20 and so on. The higher the R-value, the greater the resistance to heat flow and better insulating capability.
A thin, reflective foil sheet that reflects radiant heat back to its source. Typically installed in attics or as a house wrap, radiant barriers reduce summer heat gain and winter heat loss—resulting in a reduction in energy usage.
Electricity made from resources that rely on fuel sources that naturally regenerate over a short period of time, such as the sun, wind, moving water, biomass or biomass-based waste products, or the earth’s heat (geothermal). A renewable energy technology does not rely on energy resources derived from fossil fuels, waste products from fossil fuels, or waste products from inorganic sources.
Retail electric provider (REP)
In Texas, a REP is a company that sells electricity to consumers and is responsible for sending a monthly electricity bill. Retail electric providers are also know as electricity retailers or electricity retail providers.
A type of electricity meter that has continuously available, remote, two-way communication and information storage capability. Smart meters record and store your electrical usage in 15-minute intervals and communicate that usage information back to your local wires company. Unlike traditional electric meters that only measure total consumption, smart meters show when the energy was consumed.
A device used to transfer electric energy from one circuit to another.
Transmission and distribution service provider (TDSP)
The local wires company responsible for the poles and wires that transmit and deliver electricity to your home or business. TDSPs are responsible for the maintenance and repair of these poles and wires.
Total current non-electricity charges
The total charge for other products or services you have signed up for, such as protection plans or Reliant EcoShare.
On a variable price electricity plan, the rate you pay may go up or down depending on monthly changes in the marketplace.
A unit that measures the force used to produce an electric current. Also the push or force that moves electric current through a conductor.
A unit that measures electric power. 1 kW = 1,000 watts. 1 Megawatt (MW) = 1,000,000 watts
The rate of electric energy being used by lights or appliances.
A device that converts kinetic energy from the wind, also called wind energy, into mechanical energy in a process known as wind power.
Back to top ⌃