The Talley Road substation in San Antonio, Texas, will be constructed by 2011
to reduce the load level by 30 megawatts and limit exposure on existing long
circuits from the Anderson substation. This area is growing rapidly, and land is
available for additional expansion near the CPS Energy service boundary.
Talley Road will be a four-unit substation with two 50 megavolt ampere
transformers and four-feeder switchgear. The Texas Research to Medina Lake
transmission line will be routed to provide service to the substation. CPS Energy
used Bentley Substation for the first time on this project and expects to see the
benefits of integrated electrical and physical design in the near future.
Study and Realization of High-Voltage Substations
The installation of wind turbines in the region near the French border prompted
the need to replace the high-voltage substation that transported fossil
fuel generated energy. A new 70/15 kilovolt substation is currently under
construction at the site of the existing substation, which will remain operational
until the project is complete.
Elia Engineering conducted a study of the installation using 3D visualization
tools to improve communications and obtain critical approvals with various
parties including local, regional, and national organizations. MicroStation
and Bentley Descartes were used on the project to improve efficiency in the
realization of the study.