Exhibit 99.1

Trina Solar Announces Third Quarter 2012 Results

CHANGZHOU, China, Nov. 20, 2012 /PRNewswire/ — Trina Solar Limited (NYSE:  TSL) (“Trina Solar” or the “Company”), a leading integrated manufacturer of solar photovoltaic (“PV”) products, today announced its financial results for the third quarter of 2012.

Third Quarter 2012 Financial and Operating Highlights

·                  Solar module shipments were approximately 380 MW during the third quarter of 2012, representing a decrease of 9.2% from the second quarter of 2012

·                  Net revenues were $298.0 million, a decrease of 13.9% from the second quarter of 2012

·                  Gross profit was $2.4 million, a decrease of 91.9% from the second quarter of 2012

·                  Gross margin was 0.8%, compared to 8.4% in the second quarter of 2012, and included a non-cash inventory write-down totaling $13.3 million and a reversal of prior provision for anti-dumping and countervailing duties (AD/CVD) in the United States totaling $25.8 million

·                  The Company had no incremental accounts receivables provision, compared to $44.1 million in the second quarter of 2012

·                  Operating loss, including one-time tax and organization restructuring charges totaling $15.2 million, was $76.0 million, compared to $78.6 million in the second quarter of 2012

·                  Operating margin was negative 25.5%, compared to negative 22.7% in the second quarter of 2012

·                  Net loss was $57.5 million, compared to $92.1 million in the second quarter of 2012

·                  Loss per fully diluted American Depositary Share (“ADS”) were $0.81, compared to $1.30 in the second quarter of 2012 (each ADS represents 50 ordinary shares)

“Our third quarter sales were adversely impacted by the ongoing supply-demand imbalance in the global PV industry, high inventories and the irrational pricing practices by some competitors in the market,” said Mr. Jifan Gao, Chairman and CEO of Trina Solar. “These factors contributed to declines in our average selling prices, despite cost improvements of our key materials. Higher historical costs of our inventory also contributed to the low gross margin and net loss in the third quarter. In response to this challenging operating environment, we focused our efforts on retaining quality customers and maximizing operating cash flow, which resulted in improvements in trade receivables and inventory balance from the previous quarter.

“As recently announced, we have also successfully implemented two major initiatives. During the third quarter, we conducted the restructuring of our global business into distinct modules and systems business units. We believe this will allow us to more efficiently manage operating costs for product development to address increasing PV solar end-use applications and geographic expansion, as well as to grow our project systems as a percentage of our total business. In conjunction with this restructuring, we performed a top-down review of our operations to reallocate and reduce our headcount and other operating expenses. These initiatives address current industry conditions as well as the shift in regional demand and changes to our customers’ business models as a result of the increasingly attractive economics of solar energy for utility scale applications.

“We remain committed to improving the quality of our products, as well as our manufacturing process and performance. In the third quarter, we received the Carbon Footprint Verification from the British Standards Institute, which affirms that we comply with international best practices in carbon accounting, demonstrating our commitment to sustainable development. More recently, our commitment to quality was reflected by a certification from Underwriters Laboratories’ (“UL”) Client Test Data Program, which will allow Trina Solar to conduct UL-standard testing to accelerate market delivery of our latest technology-driven innovations and products.”

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Recent Business Highlights

During the third quarter of 2012, the Company:

·                  Announced the appointment of Mr. Henry Chow to its board of directors. Prior to his retirement from IBM in 2009, Mr. Chow served in numerous executive positions in the Asia Pacific region, and was most recently general manager and then chairman of the IBM Greater China Group. He also served on IBM’s Worldwide Management Council and its Strategy Team, a group of senior IBM executives responsible for advising, reviewing, and formulating IBM’s business strategy. Mr. Chow currently serves as a non-executive director to AMD, a semiconductor company based in the United States.

·                  Announced the availability of its newest line of high performance solutions, Trinasmart. Trinasmart combines the Company’s award-winning high performance modules with new optimizing and monitoring technologies to deliver a comprehensive solution to maximize roof space and overall power output, resulting in better project economics for both customers and installers.

·                  Announced a new Ontario, Canada sales and business development office as the Company also announced a partnership with Silfab Ontario, enabling Trina Solar to offer world-class modules that are locally-manufactured to the Canadian market.

·                  Announced the completion of the first large-scale rooftop PV system in Switzerland to use the Company’s high-performance Honey modules. The system, deployed on the roofs of Sagewerke Christen AG’s production and storage buildings in Luthern in the canton of Lucerne, has an installed capacity of 900kWp and produces up to 6,000kWh of solar energy per day. This installation makes the company the first self-sufficient and carbon neutral sawmill in Switzerland.

·                  Announced a new sales and business development presence in Santiago, Chile. The Company’s coverage now encompasses all of the Americas, including the United States, Canada, Mexico, the Caribbean, Central and South America.

·                  Held its 2012 annual general meeting of shareholders on September 7, 2012.

·                  Announced the U.S. launch of Trina Solar Partner Plus, a partnership loyalty and incentive program that provides tools to help solar installers grow their businesses.

·                  Announced its plans to streamline its organizational structure to manage its business operations more efficiently. The initiatives include separating the Company’s PV module and systems business units and adopting an operating expense reduction program.

·                  Announced that it has published its 2011 Corporate Social Responsibility (CSR) Report.

Subsequent Events

Subsequent to the third quarter of 2012, the Company:

·                  Announced that its APMEA (Asia Pacific, Middle East and Africa) headquarters in Singapore had began formal operations.

·                  Announced it obtained Carbon Footprint Verification for the Company’s solar PV modules from the British Standards Institution (BSI), a leading international standards and certification body. The verification process involved assessing the Company’s carbon footprint throughout various stages of the of the life cycles of our products, suggesting the carbon payback time for our products given reasonable assumptions on the carbon offset potential of the modules during their usage period.

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·                  Announced the duty rates determined by the U.S. Department of Commerce in the AD/CVD investigations on crystalline silicon photovoltaic cells, whether or not assembled into modules, from China, and that the U.S. International Trade Commission (the “ITC”) also made negative findings with regard to critical circumstances in this investigation, such that no retroactive duties would be imposed on Trina Solar. The Company also announced that it is currently evaluating whether it is necessary and prudent to appeal these final determinations issued by the ITC.

·                  Announced that it obtained the Client Test Data Program certification from UL. The Company is the first global solar PV company to receive this certification, which will allow it to independently conduct testing programs and issue UL-recognized test data without the on-site presence of UL-dispatched engineers.

Third Quarter 2012 Results

Net Revenues

Net revenues in the third quarter of 2012 were $298.0 million, a decrease of 13.9% sequentially and 38.2% year-over-year. Total shipments were 380.3 MW, compared to 418.8 MW in the second quarter of 2012 and 370.1 MW in the third quarter of 2011. The sequential decrease in shipments was caused by a continued supply-demand imbalance and the decrease in revenue resulted from the effect of this imbalance on market pricing and commercial terms.

Gross Profit and Margin

Gross profit in the third quarter of 2012 was $2.4 million, compared to a gross profit of $29.0 million in the second quarter of 2012 and $52.0 million in the third quarter of 2011. Gross profit during the third quarter of 2012 includes a $25.8 million reversal of prior provisions for AD/CVD in the United States, relating to the ITC’s decision to not impose duties retroactively due to the lack of evidence for critical circumstances. Gross profit during the third quarter of 2012 includes a provision of $13.3 million for non-cash inventory write-down.

Gross margin was 0.8% in the third quarter of 2012, compared to 8.4% in the second quarter of 2012 and 10.8% in the third quarter of 2011. The sequential decrease in gross margin was due primarily to higher inventory carrying costs and inventory write-down in connection with decreasing average selling price of modules; the year-on-year decrease in gross margin was due primarily to declines in the average selling price of modules that exceed reductions in cost.

The impact of the inventory write-down on the Company’s gross margin was 4.5% in the third quarter of 2012.

Operating Expense, Income and Margin

Operating expenses in the third quarter of 2012 were $78.3 million, a decrease of 27.2% sequentially and an increase of 3.8% year-over-year. The Company’s operating expenses, which included one-time tax and organization restructuring charges totaling $15.2 million, represented 26.3% of its third quarter net revenues, a decrease from 31.1% in the second quarter of 2012 and an increase from 15.7% in the third quarter of 2011. The sequential percentage decrease was primarily due to decrease in provision made to account receivables in the third quarter of 2012 while the year-to-year percentage increase was primarily due to the decrease in net revenues. Operating expenses in the third quarter of 2012 included $1.1 million in share-based compensation expenses, compared to $2.7 million in the second quarter of 2012 and $2.0 million in the third quarter of 2011.

As a result of the foregoing, operating loss in the third quarter of 2012 was $76.0 million, compared to an operating loss of $78.6 million in the second quarter of 2012 and an operating loss of $23.5 million in the third quarter of 2011. Operating margin was negative 25.5% in the third quarter of 2012, compared to negative 22.7% in the second quarter of 2012 and negative 4.9% in the third quarter of 2011.

Net Interest Expense

Net interest expense in the third quarter of 2012 was $13.8 million, compared to $9.3 million in the second quarter of 2012 and $9.7 million in the third quarter of 2011. The sequential increase in net interest expense was primarily due to an increase in average bank borrowings in the third quarter of 2012.

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Trina Solar Limited

Unaudited Condensed Consolidated Balance Sheets

(US dollars in thousands)

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