Canadian Solar Partners with PetersenDean on New Roofing Program

       Canadian Solar Partners with PetersenDean on New Roofing Program

PR Newswire

SAN RAMON, Calif., Oct. 15, 2012

SAN RAMON, Calif., Oct. 15, 2012 /PRNewswire-FirstCall/ --Canadian Solar Inc.
(the "Company", or "Canadian Solar")(NASDAQ: CSIQ), one of the world's
largest solar companies, announced today it will partner with the largest
privately held roofing company in the United States—PetersenDean—on a new
roofing program the company is introducing. PetersenDean has launched a
successful solar division and will actively promote the new roofing program,
capitalizing on its decades of roofing experience to improve the installation
quality and costs for installation of a residential solar system.

"Canadian Solar is proud to partner with PetersenDean, a leader in bringing
solar to the residential market and well known for quality workmanship and
materials," said, Alan King, general manager of Canadian Solar USA. "We are
pleased to support this award-winning company in an important new program that
will help make clean, renewable energy a reality for consumers nationwide."

"We are committed to our partnership with Canadian Solar, and are pleased to
offer its high quality solar products in this exclusive program," said Jim
Petersen, CEO of PetersenDean. "We believe that Canadian Solar's fiscal
strength, quality products, and strong performance warranty are assets to our
program and ultimately our customers."

Canadian Solar's modules have been rigorously tested and awarded international
certifications attesting to their quality, reliability and performance.The
Company's modules are ranked among the top of the California Energy
Commission's Solar Electric Incentive Program for their high PTC efficiency
ratings. Canadian Solar is focused on delivering the best value in solar with
their recognized high-performance solar modules and backstop warranty.

PetersenDean will kick off the new program at Santana Row, October 19-21.Find
out more at

About Canadian Solar

Canadian Solar Inc. (NASDAQ: CSIQ) is one of the world's largest solar
companies. As a leading vertically integrated provider of ingot, wafer, solar
cell, solar module and other solar applications, Canadian Solar designs,
manufactures and delivers solar products and solar system solutions for
on-grid and off-grid use to customers worldwide. With operations in North
America, Europe, Africa, Australia and Asia, Canadian Solar provides premium
quality, cost-effective and environmentally-friendly solar solutions to
support global, sustainable development. For more information, please visit

About PetersenDean Roofing and Solar Systems

Headquartered in Fremont, California, as the largest privately held roofing
and solar contractor in the United States, and operating in 15 regional
offices across the United States, PetersenDean offers something few other
companies can: the ability to guarantee all products and installations above
the roofline. Our commitment to safety, superior quality customer service, and
the environment has earned us an industry-wide reputation for excellence.

Safe Harbor/Forward-Looking Statements:

Certain statements in this press release are forward-looking statements that
involve a number of risks and uncertainties that could cause actual results to
differ materially. These statements are made under the "Safe Harbor"
provisions of the U.S. Private Securities Litigation Reform Act of 1995. In
some cases, you can identify forward-looking statements by such terms as
"believes," "expects," "anticipates," "intends," "estimates," the negative of
these terms, or other comparable terminology. Factors that could cause actual
results to differ include risks regarding general business and economic
conditions and the state of the solar industry; governmental support for the
deployment of solar power; future available supplies of high-purity silicon;
demand for end-use products by consumers and inventory levels of such products
in the supply chain; changes in demand from significant customers; changes in
demand in the Canadian markets; changes in customer order patterns; capacity
utilization; pricing pressure and declines in average selling prices; delays
in utility-scale project approval process; delays in utility-scale project
construction; shortage in supply of materials or capacity requirements;
availability of financing; exchange rate fluctuations; litigation and other
risks as described in the Company's SEC filings, including its annual report
on Form 20-F filed on April 27, 2012. Although the Company believes that the
expectations reflected in the forward looking statements are reasonable, it
cannot guarantee future results, level of activity, performance, or
achievements. You should not place undue reliance on these forward-looking
statements. All information provided in this press release is as of today's
date, unless otherwise stated, and Canadian Solar undertakes no duty to update
such information, except as required under applicable law.

SOURCE Canadian Solar Inc.

Contact: Canadian Solar Inc., Ed Job, IR Director, +86-512-6690-8088 x66525, and Jill Hansen, Media Relations, +1-925-866-2700, or Global IR Partners, +1-914-337-8801, for Canadian Solar Inc. or PetersenDean, John
Collins, Creative Director, +1-415-850-3283,
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