Pattern Energy Closes Financing, Commences Construction of Hatchet Ridge Wind Farm in Shasta County, California

Pattern Energy Closes Financing, Commences Construction of Hatchet Ridge Wind
Farm in Shasta County, California
101.2 MW Hatchet Ridge Wind Farm to Generate Power for Nearly 44,000
California Homes Annually

SAN FRANCISCO, Oct. 8 /PRNewswire/ -- Pattern Energy Group LP (Pattern) today
announced the closing of financing and commencement of construction of its
Hatchet Ridge wind project, the first large-scale wind project to begin
construction this year in California. The 101.2-MW Hatchet Ridge project,
developed by Renewable Energy Systems Americas Inc. (RES Americas), will be
located on a portion of Hatchet Mountain near the town of Burney in Shasta
County, California. The project is expected to finish construction and reach
commercial operation before the end of next year.

Hatchet Ridge will generate power equivalent to the amount of energy needed to
serve nearly 44,000 California homes annually. Pacific Gas and Electric
Company (PG&E) will purchase the power, including the renewable attributes,
under a 15-year power purchase agreement.

In addition to providing clean, renewable energy for Californians, Hatchet
Ridge will create approximately 100 - 200 construction jobs over the next year
and 6 - 8 permanent jobs during operations. There will also be an economic
ripple effect in the area from the purchases of goods and services for the
wind farm and increased business for service industries.

Hatchet Ridge will invest $5 million dollars in the local community over the
life of the project through the Shasta County General Fund, the Shasta
Regional Community Foundation, and the Burney Foundation Regional Education
Fund as well as pay substantial local taxes.

Pattern selected a six-bank club to provide a debt facility to fund project
costs during construction, which converts to a term financing facility upon
commercial operation. The lenders include: Natixis, UBOC, LBBW, Calyon,
SocGen, and WestLB. RES America Construction, Inc. will construct the project,
which will consist of 44 Siemens 2.3 MW turbines. The Siemens SWT-2.3-93 wind
turbine is a proven technology with more than 2,000 operating worldwide and is
well-regarded throughout the industry.

"We are pleased to close financing and commence construction on the Hatchet
Ridge Wind Farm. We are very excited about starting construction of our first
project only four months after forming Pattern Energy," said Mike Garland, CEO
of Pattern Energy. "This project is the result of years of dedication and
collaboration with RES Americas, Siemens, PG&E, local government, project
property-owners, and the community. We are very appreciative for the local
support we received that helped make this project a reality."

"California is one of the top states in generating wind power capacity and we
are excited to continue to bring clean, renewable energy to the region and
working with the local businesses in completing the project," said Andrew
Fowler, Senior Vice President of Construction of RES Americas. "Renewable
energy brings economic benefits to the community and provides a secure and
sustainable future for all."

ABOUT PATTERN ENERGY GROUP LP
Pattern Energy is an independent, fully integrated energy company that
develops, constructs, owns, and operates clean power projects and transmission
assets across North America and parts of Latin America. Pattern Energy
commenced operations in June of 2009 as one of the most experienced and
best-capitalized clean energy and transmission development companies in the
U.S. Riverstone Holdings LLC, an energy and power-focused private equity firm
with $17 billion under management, purchased Babcock & Brown's thriving North
American energy development team and development pipeline to form Pattern
Energy.

Pattern Energy retains an 80-person staff with offices in San Francisco,
Houston, San Diego and New York, which successfully developed, financed and
placed into operation more than 2,000 MW of wind power in eleven states.
Pattern Energy's development pipeline exceeds 4,000 MW of renewable energy
projects in addition to multiple power transmission projects and natural gas
power projects. Pattern is dedicated to delivering the highest values for our
partners and the communities in which we work, while exhibiting a strong
commitment to promoting environmental stewardship and corporate
responsibility.

ABOUT RES AMERICAS
Renewable Energy Systems Americas Inc. (RES Americas) is a fully-integrated
renewable energy company that develops, constructs, owns, and operates
projects across the United States (US), Canada, Mexico and the Caribbean. RES
Americas has constructed more than 3,500 MW, which represents approximately
14% of the operating installed wind capacity in the US, and has over 12,500 MW
in development. RES Americas' corporate office is located in Broomfield, CO
with regional offices located in Austin, TX; Portland, OR; Minneapolis, MN;
and Montreal, Quebec, Canada. RES Americas continues to seek new locations for
wind and solar projects as well as opportunities to participate in other forms
of renewable energy. For more information, please visit www.res-americas.com.

Contact:
Beth O'Brien
Pattern Energy
512-636-7871
Beth.OBrien@patternenergy.com

Raheleh Folkerts
RES Americas
303-439-4200
Raheleh.Folkerts@res-americas.com

SOURCE Pattern Energy

Beth O'Brien of Pattern Energy, +1-512-636-7871,
Beth.OBrien@patternenergy.com; or Raheleh Folkerts of RES Americas,
+1-303-439-4200, Raheleh.Folkerts@res-americas.com