Pattern Energy signs O&M agreement with Duke Energy Renewable Services

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CHARLOTTE, N.C. - Duke Energy Renewable Services today announced it has signed a long-term agreement to service Pattern Energy Group Inc.'’s 283-megawatt (MW) Gulf Wind energy project in Armstrong, Texas.

Duke Energy Renewable Services will supply operations and maintenance services for three years, beginning in November, with an option for a two-year extension. Duke Energy Renewable Services has also provided service and maintenance work at Pattern Energy'’s Hatchet Ridge wind site in Burney, Calif., since 2012.

"“We have been pleased with Duke'’s service and maintenance work at our Hatchet Ridge Wind farm, where they have helped us deliver consistently safe and reliable operations,"” said Chris Shugart, senior vice president of operations at Pattern Energy. “"We look forward to extending this relationship to our Gulf Wind project.”"

The fully operational wind project is comprised of 118 2.4-MW Mitsubishi MWT95 turbines and sits on 9,600 acres. The project began operations in 2009.

"“We'’re pleased to expand our relationship with a successful, independent wind power company,"” said Greg Wolf, president of Duke Energy Renewables. "“Pattern Energy shares our commitment to safe and efficient operations, the environment and the communities in which we operate. This partnership will continue to deliver benefits to both parties.”"

Duke Energy Renewable Services, an organization resulting from Duke Energy'’s 2012 acquisition of Minnesota-based Outland Energy Services, has deep experience operating wind assets and increasing customer’'s energy yield during times of high electricity demand.

"“We are looking forward to ensuring another successful project for Pattern Energy,"” said Jeff Wehner, vice president of Duke Energy Renewables. “"Our ability to leverage our operational experience and buying power for component parts allows us to provide cost-effective maintenance that will optimize the performance of the Gulf Wind Project, resulting in greater service value.”"

About Duke Energy Renewables

Duke Energy Renewables, part of Duke Energy'’s Commercial Businesses, is a leader in developing innovative wind and solar energy generation projects for customers throughout the United States. The company'’s growing portfolio of commercial renewable assets includes 15 wind farms and 21 solar farms in operation in 12 states, totaling about 1,800 megawatts in electric-generating capacity. Learn more at

Headquartered in Charlotte, N.C., Duke Energy is a Fortune 250 company traded on the New York Stock Exchange under the symbol DUK. More information about the company is available at:

About Pattern Energy

Pattern Energy Group Inc. (Pattern Energy) is an independent power company listed on the NASDAQ (“"PEGI"”) and Toronto Stock Exchange (“"PEG"”). Pattern Energy has a portfolio of eleven wind power projects, including one project it has agreed to acquire, with a total owned interest of 1,472 MW, in the United States, Canada and Chile that use proven, best-in-class technology. Pattern Energy'’s wind power projects generate stable long-term cash flows in attractive markets and provide a solid foundation for the continued growth of the business. For more information, visit