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TDSP
- Electricity is then carried to a
transformer via cables where it is converted from
low voltage to high voltage for more efficient
transmission over long distances. High voltage
transmission lines carry the electricity over long
distances to substations at or near the point of
use. Substations convert the electricity from high
voltage to lower voltage electricity which is then
moved through distribution lines to consumers by the
Transmission and Distribution Providers (TDSP).
REP - Retail Electric Providers then sell this
power to consumers on a per kWh basis.
ERCOT - Oversees the
reliability and security of the state’s power grid.
They make sure you get electricity into your home or
business and enforce reliability standards for the
electricity grid and utility operations.
www.ercot.com
PUC
- The Public
Utility Commission regulates the delivery of
electricity to ensure the safety and reliability of
your service. The mission of the Public Utility
Commission of Texas is to protect customers, foster
competition, and promote high quality
infrastructure.
www.puc.state.tx.us
The diagram below shows the basic flow of
electricity to your home or business in the
deregulated marketplace.

Electricity Glossary
Electricity in Texas is generated from natural
gas, nuclear, coal, wind, water, and solar energy.
Since 1995, Texas has built or has under
construction, some 27,000 MW of generation capacity
and is projected to have reserve margins in excess
of 25% through 2006. About 20% of the residential
customers in TXU and Reliant service territories
have switched providers and nearly 100% of large
commercial customers have switched. |