Industry Leader to Focus on Company's Renewable Strategy to Meet Growing Demand HOUSTON, March 9 /PRNewswire-FirstCall/ -- Quanta Services, Inc. (NYSE: PWR) today announced that Peter Lorenz has been named president of Quanta Renewable Energy Services, LLC. In this role, Lorenz will drive the growth of Quanta's presence in the renewable energy market while providing strategic oversight of the company's operations related to the planning, installation and interconnection of wind and solar generation infrastructure. "Peter's leadership in the renewable market is a strategic fit with Quanta's long-term vision for growth," said John R. Colson, chairman and CEO of Quanta Services. "We consider renewable energy the most rapidly emerging opportunity for Quanta. In this role, Peter will lead our renewable operations to leverage growth opportunities and further meet the evolving needs of our customers as they work to comply with renewable portfolio standards." Prior to joining Quanta, Lorenz was associate partner at McKinsey & Company in Houston and led their Global Solar Initiative over the past two years. He served multiple clients in the electric power industry across multiple continents. Prior to joining McKinsey, Lorenz helped build Shell Solar's global business as the company's finance manager, based in London. Peter joins Quanta with a master of business administration from Harvard and a dual undergraduate degree in business administration from Reutlingen and Middlesex University. Quanta has applied its infrastructure expertise and resources in the wind market for more than a decade and has had significant success in the solar market over the past year. The company provides complete engineer-procure-construct services for utility-scale and large commercial solar generation facilities. Quanta's capabilities in engineering, design, procurement, project management and construction are critical in decreasing costs associated with solar installations. About Quanta Services Quanta Services is a leading specialized contracting services company, delivering infrastructure network solutions for the electric power, natural gas, 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 Ken Dennard / Reba Reid Kip Rupp / Quanta Services, Inc. DRG&E 713-629-7600 713-529-6600 DATASOURCE: Quanta Services, Inc. CONTACT: James Haddox, CFO, or Reba Reid, both of Quanta Services, Inc., +1-713-629-7600; or Ken Dennard, , or Kip Rupp, , both of DRG&E, +1-713-529-6600, for Quanta Services, Inc.

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