Burns & McDonnell completes projects for South Texas Electric Cooperative and Oklahoma Gas & Electric.
HOUSTON — On the same day, Burns & McDonnell energized South Texas Electric Cooperative's first fiber-optic line and wind-fueled transmission for Oklahoma Gas & Electric.
South Texas Electric Cooperative Installs First Fiber-Optic Line
On March 31, 2010, South Texas Electric Cooperative (STEC) energized its first transmission line with fiber-optic, overhead ground wire in a jointly owned, 100-mile installation of 345-kV, single-circuit transmission line on double-circuit-capable monopole structures. STEC employed fiber-optic control technology to compatibly connect to the Electric Transmission Texas, LLC (ETT) grid. ETT-a joint venture between subsidiaries of American Electric Power and MidAmerican Energy Holdings Company - owns 63 miles, and STEC owns 42 miles of the transmission line originating at the San Miguel Power Plant in Atascosa County, Texas, and terminating at the ETT's Lobo Switching Station in Webb County, Texas.
STEC hired Burns & McDonnell to perform engineering, procurement management and construction management for its portion of the transmission line and the San Miguel 345-kV substation. Coordinating design between the two utilities, Burns & McDonnell designed this installation for two circuits of bundled, 1590-KCM, Lapwing conductor with one circuit not installed for future expansion. The structures and line hardware were designed to facilitate live-line maintenance. Burns & McDonnell coordinated between utilities, placed engineers on site during construction to provide quick responses to any potential issues and facilitated an energization that was ahead of schedule.
Oklahoma Gas & Electric Adopts Renewable Energy at Wind Speed
In just over two years Oklahoma Gas & Electric (OG&E) completed a fast-track, $200 million program energized in March 2010. OG&E hired Burns & McDonnell to orchestrate this interconnection — 121 miles of 345-kV transmission and four substations — to route wind power generated in northwestern Oklahoma to OG&E's load center in Oklahoma City.
"This is an important milestone in the ongoing development of renewable energy in our state," says Pete Delaney, OGE Energy Corp. chairman, president and CEO. "The new line supports a more robust build out of Oklahoma's wind potential; producing revenue for landowners, creating jobs, increasing tax revenues in northwestern Oklahoma, and delivering renewable energy to Oklahoma consumers."
Program design included 345-kV line with double-bundled, aluminum conductor, steel-reinforced 1590 Lapwing; two steel, overhead ground wires; self-supporting, single, steel structures on drilled-shaft foundations; two greenfield substations; modifications to two existing substations; and preliminary layout for a future substation.
About Burns & McDonnell
As the only firm in Engineering News-Record's top 100 to receive the honor of the PSMJ (Professional Services Management Journal) 2009 Premier Award for Client Satisfaction, Burns & McDonnell provides engineering, architecture, construction, environmental and consulting services to clients throughout North America and abroad from more than 20 offices throughout the U.S. Founded in 1898, Burns & McDonnell is 100 percent employee-owned by its 3,000 professionals, ranks in the top 1 percent in safety and the top 10 percent (#22) of Engineering News-Record's 2010 Top 500 Design Firms. Burns & McDonnell is an industry leader in several Engineering News-Record categories including electrical transmission and distribution and power, and the Houston Business Journal named Burns & McDonnell to its 2010 list of Largest Houston-Area Energy Engineering Firms. In both 2009 and 2010, Texas Monthly named Burns & McDonnell one of the Best Companies to Work for in Texas.