HOUSTON, Feb. 17 /PRNewswire-FirstCall/ -- Quanta Services, Inc. (NYSE: PWR) today announced that the company will present at the Fifth Annual Piper Jaffray Clean Technology & Renewables Conference to be held on Tuesday, Feb. 23, 2010 at the Westin New York at Times Square Hotel in New York City. John R. Colson, chairman and chief executive officer, and James H. Haddox, chief financial officer, will present on Tuesday, Feb. 23, 2010 starting at 2:00 p.m. Eastern Time. Quanta's presentation for the Fifth Annual Piper Jaffray Clean Technology & Renewables Conference will be broadcast live over the Internet. Live webcast links will be available on the company's Web site at http://www.quantaservices.com/ and will also be archived for replay on the Web site. Quanta Services is a leading specialized contracting services company, delivering infrastructure solutions for the electric power, natural gas and pipeline, telecommunications and cable television industries. The company's comprehensive services include designing, installing, repairing and maintaining network infrastructure nationwide. Additionally, Quanta provides point-to-point fiber optic telecommunications infrastructure and leasing in select markets and offers related design, procurement, construction and maintenance services. With operations throughout North America, Quanta has the manpower, resources and expertise to complete projects that are local, regional, national or international in scope. Contacts: James Haddox, CFO Kip Rupp / Reba Reid 404-872-6764 Quanta Services, Inc. Ken Dennard / 713-629-7600 713-529-6600 DRG&E DATASOURCE: Quanta Services, Inc. CONTACT: James Haddox, CFO, or Reba Reid, both of Quanta Services, Inc., +1-713-629-7600; or Kip Rupp, +1-404-872-6764, , or Ken Dennard, +1-713-529-6600, , both of DRG&E, for Quanta Services, Inc. Web Site: http://www.quantaservices.com/

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