"The environmental analysis for the Ocotillo project was rigorous and included an extensive public outreach program and complex multi-agency approval process.

SAN FRANCISCO, April 10, 2013 -- Pattern Energy Group LP (Pattern) today announced that both the National Association of Environmental Professionals (NAEP) and the California Association of Environmental Professionals have awarded the Ocotillo Wind project with awards for outstanding environmental analysis and documentation.

"The Ocotillo Wind project's environmental review analysis received our highest honor," said Paul Looney , President of the NAEP. "The environmental analysis for the Ocotillo project was rigorous and included an extensive public outreach program and complex multi-agency approval process. The analysis also featured innovative analytical techniques including a state-of-the-art radar system linked to video recorders to monitor avian and big horn sheep activity."

"We are honored by these awards, which underscore our commitment to environmental excellence," said Mike Garland , CEO of Pattern Energy. "We are proud to implement the most advanced technologies available to avoid impacts on environmental resources. We are pleased with the current operation of the project, which is providing clean energy to Southern California, and we look forward to continuing the implementation of the project's environmental commitments and community benefits program."

The Bureau of Land Management (BLM) was the lead agency for the Ocotillo Wind project, with Imperial County as co-lead. The BLM hired Aspen Environmental Group to conduct the environmental review process. Aspen also received biological consultation from HELIX Environmental Planning and archeological consultation from Tierra Environmental Services.

The Ocotillo Wind project, a 265 megawatt (MW) wind power project in the Imperial Valley, has 94 turbines that are operational. The remaining 18 turbines will be installed and operational by mid-year. The Ocotillo Wind project will provide enough clean and renewable energy to power nearly 125,000 homes in Southern California each year. w

More than 500 workers participated in the construction of the project, which used many subcontractors from the local region. Nearly 70% of the Ocotillo Wind project was 'made in America,' utilizing 112 Siemens wind towers, blades and nacelles that were manufactured in the United States. Ocotillo Wind will also generate substantial tax revenues over the next 30 years, benefiting Imperial County and local schools, among others.

Ocotillo Wind is the first renewable energy project to transmit power over the Sunrise Powerlink transmission line, which connects San Diego with the Imperial Valley – one of the most renewable-rich regions in California. San Diego Gas & Electric (SDG&E) and the California Independent System Operator Corporation (ISO), the agency that manages most of the statewide grid, consider the Sunrise Powerlink one of the important mitigation measures that will help maintain electric reliability during heat waves.

About Pattern

Pattern Energy Group LP is an independent, fully-integrated energy company that develops, constructs, owns, and operates renewable energy and transmission assets in the United States, Canada and Latin America. With a long history in wind energy, Pattern's highly-experienced team of scientists, engineers, construction experts, and legal and financial professionals has developed, financed and placed into operation nearly 3,000 MW of wind power projects. A strong commitment to promoting environmental stewardship drives the Company's dedication to work closely with landowners and communities to create premier renewable energy projects. Pattern currently operates approximately 1,000 MW of installed wind energy capacity in North America and Puerto Rico. The Company's full development pipeline exceeds 3,000 MW of renewable energy and transmission projects. Pattern has offices in San Francisco, San Diego, Houston, New York, and Toronto. For more information please visit www.patternenergy.com.