When Oncor laid its first power lines at the beginning of the 20th century, who could have imagined the speed of change that would fuel the ongoing need for electricity? With more than 139,000 miles of transmission and distribution lines serving more than 400 communities and 98 counties, we do more than simply keep the lights on. Throughout the decades, the same determination that fired up the first incandescent bulbs across Texas hasn’t faltered. At Oncor, the sparks of innovation are alive and well.