Trina Solar launches Trinasmart solution in North America

Solution Series Provides Increased Energy Output and Design Flexibility to Maximize Roof Space

SAN FRANCISCO, California; July 9, 2012 – Trina Solar Limited (NYSE: TSL) (“Trina Solar” or “the Company”), a leading integrated manufacturer of solar photovoltaic products from the production of ingots, wafers and cells to the assembly of PV modules, announced the availability of its newest line of high performance solutions – Trinasmart. Trinasmart combines the Company’s award-winning high performance modules with new maximizer and monitoring technology to deliver a comprehensive solution to maximize roof space and overall power output, resulting in better project economics for customers and installers alike.

Trinasmart continues the Company’s commitment to provide better solutions for Trina Solar partners. The Trinasmart Maximizer uses built-in technology to accurately and quickly find the exact optimal operating point of each module and prevents shading issues from diminishing the output of other modules with its “Impedance Matching” technology. This innovation results in up to 20 percent higher power output for arrays impacted by shading and up to 8 percent higher output for “perfect” installations. Additionally, the Trinasmart Maximizer allows for varying string lengths and roof angles, enabling installers to maximize roof coverage.

“Trinasmart furthers Trina Solar’s commitment to providing an end-to-end solar solution for our customers,” said Mark Kingsley, Trina Solar’s Chief Commercial Officer. “When our customers chooseTrina Solar, they get more than high-performing panels, they get a partner that lowers the overall cost of going solar while increasing their profits.”

In addition to increased output, Trinasmart offers better monitoring and safety as well. The Trinasmart solution allows system owners to monitor system performance at the module level, track historical data and compile important system information via computer, mobile phone or tablet PC. Users can receive weekly or monthly reports as well as monitor their system online. Additionally, Trinasmart improves module safety by shutting down modules automatically in case of electrical failure (e.g. flashing arc) and allowing modules to be turned off remotely.

The Company’s new line of Trinasmart solar solutions kicks off with a collaborative effort between panel manufacturer Trina Solar and optimizer company Tigo Energy.

“We are proud that our optimizers were chosen to launch Trina Solar’s new Trinasmart solution,” saidSam Arditi, president, Tigo Energy. “We are excited to help Trina Solar bring smart modules mainstream to improve project value for both end users and installers.”

The release of Trinasmart comes on the heels of the Company earning top recognition in three important solar metrics: long-term financial viability, environmental ethics and field performance. PRTM ranked the Company first in its list of sustainably growing solar companies. The Silicon Valley Toxics Coalition ranked Trina Solar first in its annual scorecard of solar panel manufacturing processes, and Trina Solar placed first in the California Energy Commission’s PTC/STC ratio ratings. 2 To learn more about Trinasmart, visit www.trinasolar.com, contact your local Trina Solar representative or visit Trina Solar at Intersolar North America 2012 at booth 7511.

About Trina Solar Limited

Trina Solar Limited (NYSE: TSL) is a leading manufacturer of high quality modules and has a long history as a solar PV pioneer since it was founded in 1997 as a system installation company. Trina Solar is one of the few PV manufacturers that have developed a vertically integrated business model from the production of monocrystalline and multicrystalline silicon ingots, wafers and cells to the assembly of high quality modules. Trina Solar’s products provide reliable and environmentally-friendly electric power for a growing variety of end-user applications worldwide. For further information, please visit Trina Solar’s website at http://www.trinasolar.com.

About Tigo Energy

Tigo Energy designs the #1 PV solar optimizer utilizing patented impedance matching technology to allow more modules on any roof, uneven string lengths and different orientations. Installers and system owners achieve the highest ROI by increasing energy production and maximum system up-time for new systems and retrofits. Headquartered in the Silicon Valley, Tigo Energy is an innovative force partnering with module, inverter and combiner box manufacturers to embed these features and monitor arcing, fire and safety hazards. Tigo Energy delivers the most effective string monitoring, theft prevention and fleet management. Visit Tigo Energy at tigoenergy.com and at Intersolar North America in booth 8335.

Safe Harbor Statement

This announcement contains forward-looking statements within the meaning of the safe harbor provisions of the Private Securities Litigation Reform Act of 1995. All statements other than statements of historical fact in this announcement are forward-looking statements, including but not limited to, the Company’s ability to raise additional capital to finance the Company’s activities; the effectiveness, profitability and marketability of its products; the future trading of the securities of the Company; the Company’s ability to operate as a public company; the period of time for which the Company’s current liquidity will enable the Company to fund its operations; general economic and business conditions; demand in various markets for solar products; the volatility of the Company’s operating results and financial condition; the Company’s ability to attract or retain qualified senior management personnel and research and development staff; and other risks detailed in the Company’s filings with the Securities and Exchange Commission. These forward-looking statements involve known and unknown risks and uncertainties and are based on current expectations, assumptions, estimates and projections about 3 the Company and the industry in which the Company operates. The Company undertakes no obligation to update forward-looking statements to reflect subsequent occurring events or circumstances, or changes in its expectations, except as may be required by law. Although the Company believes that the expectations expressed in these forward looking statements are reasonable, it cannot assure you that such expectations will turn out to be correct, and the Company cautions investors that actual results may differ materially from the anticipated results.

For financial-related inquires or financial-related media, please contact:

Trina Solar Limited

Terry Wang, CFO Phone: + 86.519-8548-2009 (Changzhou) Thomas Young, Vice President, Investor Relations Phone: + 86.138.6118.3779 (Global)

Brunswick Group

Caroline Jinqing Cai Phone: + (86) 10-6566-2256 Michael Fuchs Phone: + (86) 10-6566-2256

Email: ir@trinasolar.com Email: trina@brunswickgroup.com

For solar industry-related media, please contact:

Tigercomm Public Relations

JB Tengco Phone : + 1 (415) 292 4314

Tigo Energy

Lisette Rauwendaal Public Relations Phone: +1 (408) 402-0802 ext. 433

Email : jtengco@tigercomm.us Email: lisette.r@tigoenergy.com