To carry renewable energy from the Tehachapi Wind Resource Area south to San Bernardino County, Southern California Edison (SCE) constructed more than 170 miles of high-voltage overhead transmission lines and 3.7 miles of underground line, and upgraded and constructed several substations as part of the Tehachapi Renewable Transmission Project.

Following are images from the projects, all featured in the more in-depth article, SCE Makes Major Substation Upgrades....