Pattern Erects First Wind Turbine at Its Chile Project and Reaches Mid-Point of Construction at Its Ontario Project

Pattern Energy Group Inc. (Nasdaq:PEGI) (TSX:PEG) (“Pattern”), a premium independent power company that owns and operates a portfolio of wind power projects, today announced that it has erected the first wind turbine at its El Arrayan wind project, a 115 megawatt (MW) project located on the coast of Chile, near Ovalle. Pattern also announced it has passed the mid-point of overall construction at South Kent Wind, its 270 MW project in the municipality of Chatham-Kent in southern Ontario and has erected 50 turbines on the site.

“We’re making excellent progress on our two projects in construction and are on track to complete them on time,” said Mike Garland, CEO of Pattern. “These two premier wind projects, El Arrayan and South Kent, will be the largest wind power facilities in Chile and Ontario, respectively. Completing the construction of these two projects will be a significant milestone, providing Pattern with operating income from eight total wind projects and increasing the company’s distributable cash flow.”

Pattern has a portfolio of eight wind power projects with a total owned capacity of 1,041 MW, including the following facilities:

• Gulf Wind, 113 MW owned, Texas
• Hatchet Ridge, 101 MW owned, California
• Ocotillo Wind, 265 MW owned, California
• Santa Isabel, 101 MW owned, Puerto Rico
• Spring Valley, 152 MW owned, Nevada
• St. Joseph, 138 MW owned, Manitoba
• South Kent, 135 MW owned, Ontario
• El Arrayan, 36 MW owned, Chile

The South Kent project is expected to reach commercial operation in April of 2014. El Arrayan is expected to be operational in June of 2014.

Pattern Energy Group Inc. (“Pattern”) is a premium independent power company listed on the NASDAQ (“PEGI”) and Toronto Stock Exchange (“PEG”).