JinkoSolar modules pass IEC 61345 test from TUV Rheinland


JinkoSolar Holding Co. sent word that its modules have passed intensive UV test in terms of IEC 61345 from TUV Rheinland.

What is IEC 61345?

Comparing with test procedure of UV Preconditioning test defined in IEC 61215, which is the major international standard of the industry, IEC 61345 intend to verify the sample’s UV resistance under different ultraviolet level (“UVA”, 320nm~400nm “UVB”, 280nm~320nm).

By considering the test condition of that, Jinko required TUV Rheinland to perform the special UV test which had more than 160KWh/m2 irradiance for exposure (137.84KWh/m2 for front side and 30.07KWh/m2 for rear side). And power degradation was less than 5%.

“I’m proud that JinkoSolar is the first Chinese PV manufacturer to pass intensive UV test according to IEC61345, which further demonstrates our technology strength and leading position in the industry,” commented Mr. Kangping Chen, Chief Executive Officer of JinkoSolar. “We have always been committed to providing our clients with the highest quality and most reliable products while being at the forefront of solar technology.”

Tesla’s Solar Roof is ready to purchase; Here’s how much it costs



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Canada’s IEC working on solar tracker safety standard

IEC PV standards

The International Electrotechnical Commission IEC TC82 WG7 meeting was held recently at the University of Ottawa, Canada. The meeting covered topics on safety, performance and testing requirements of CPV modules, cells and the safety standard for solar trackers and CPV optics. For the first time, a solar tracker safety standard will be incorporated into an IEC standard. Arctech Solar is the only tracker manufacturer who is specially invited by IEC committee to lead the standard drafting.

As a producer and advocate of safety standards for solar trackers, Arctech Solar introduced the tracker safety standards in detail during the meeting, answering all queries from the present and online experts. It has been the only international tracker standard drafted by a Chinese tracker supplier in the history of IEC standardization. The standard has come to the consensus and has been pre-confirmed and improved after serious discussions. It is expected to enter the Committee Draft for Vote (CDV) stage in early 2018.

Mr. Bruce Wang, Chief Technology Officer of Arctech Solar proposed that it is necessary to establish an internationally uniform, reliable safety standard for solar trackers. The proposal of standardization is fully recognized and approved by all experts in the committee. Upon request by the IEC committee, Arctech Solar will submit the final revised standard shortly.

Arctech Solar says it will continuously advocate a more recognized industrial safety standard for solar trackers and promote the tracker industry as a whole.

How are solar trackers holding up in hurricane season? NEXTracker sends an update

— Solar Builder magazine

SMA’s Sunny Boy-US series achieves UL 1741 listing

SMA America announced the Sunny Boy-US series as the first residential inverter to achieve UL 1741 SA (Supplement A) listing, which represents a significant step in creating a more stable grid and providing the best technology for the residential market.

SMA America inverters

SMA has completed functional and safety testing with the Sunny Boy-US series of inverters according to the published UL 1741 SA Standard, and Sunny Boy inverters now available for ordering will enable customers to comply with the new standard.

California and Hawaii are the first states to mandate that inverter manufacturers meet the UL 1741 SA requirements of the UL 1741 standard, with compliance required in September 2017. Since it is likely that other states will follow suit, SMA has chosen to upgrade its inverter technology to meet the standard almost a year ahead of schedule.

RELATED: How California’s Rule 21 inverter requirements expand grid capacity, limit energy (revenue) generation 

“Residential solar continues to grow at a rapid pace, and the impact on utilities is significant. Collectively the industry is looking for the best, most effective long-term solutions for a modern grid,” said Sven Schreiber, executive vice president of the Residential business unit at SMA. “SMA recognizes the importance of UL 1741 SA, and has opted to add the necessary functions and features to our inverters immediately. We believe that providing inverters certified to this standard now will save our customers time and money later.”

While the UL 1741 SA listing is not yet mandatory in all 50 states, anyone who wants to comply with the standard can choose SMA inverters knowing they will provide the right features and functions should additional states adopt the same requirements in the future.

Although it is not yet mandatory, SMA believes that complying with the UL 1741 SA requirements as soon as possible is a responsible decision that ensures optimal grid health and stability, while also providing customers with the best possible inverter.

The Sunny Boy-US series includes the following models:


Don’t leave yet! Check out our 2017 Inverter Buyer’s Guide.

— Solar Builder magazine

NREL publishes new PV module quality standard


Working with partners around the world, researchers at the U.S. Department of Energy’s National Renewable Energy Laboratory (NREL) have completed five years of work toward helping establish an international quality standard for manufacturing photovoltaic (PV) modules.

PV manufacturers will use the new standard to increase the level of confidence investors, utilities, and consumers have in solar panel safety and reliability, which in turn should lower the cost of financing for solar projects.

The standard supplements the existing ISO-9001 and was jointly developed by the International Electrotechnical Commission (IEC) and the International PV Quality Assurance Task Force (PVQAT). The task force was formed in 2011 to accelerate the IEC’s development of standards by writing initial drafts and coordinating research to provide the technical basis for new standards. The new standard appears in “Terrestrial Photovoltaic (PV) Modules – Guidelines for increased confidence in PV module design qualification and type approval.

The PV industry has grown by a factor of about 500 over the past two decades. With customers worldwide now investing approximately $100 billion in PV annually, the international solar community is driven to maintain the quality of that investment. To this end, NREL, along with other international groups, has spearheaded the PVQAT to establish guidelines that cover:

• How to test PV modules for adequate durability for the chosen climate zone and mounting configuration;
• How to ensure consistent manufacturing of the durable design (the topic of IEC 62941); and
• How to ensure the final system is fully functional.

RELATED: How new solar module technology lifts efficiency, limits price 

Primary contributions to this work came from Govind Ramu (SunPower), Yoshihito Eguchi (Mitsui Chemical), George Kelly (Sunset Technology), Masaaki Yamamichi (AIST), Wei Zhou (Trina Solar), Sumanth Lokanath (First Solar), and Sarah Kurtz (NREL). These and others co-authored a technical report detailing the requirements, “Updated Proposal for a Guide for Quality Management Systems for PV Manufacturing: Supplemental Requirements to ISO 9001-2008.”

The PVQAT effort is closely coordinated with the IEC, which uses a formal process to refine and define the final documents. The new standards detail how manufacturers must:

• Consider potential failure modes and take steps to address those in the design, production, application, and delivery process.
• Obtain IEC certification and implement an ongoing reliability test program that monitors the performance of PV modules.
• Improve product traceability through the entire supply chain in the case of recalls or warranty claims.
Pass-fail requirements, a checklist, and guidance on how factory audits are completed have been drafted and are in the process of being adopted to help ensure consistent implementation of the new standards, known as IEC 62941.

NREL’s support of PVQAT is funded by the Energy Department’s SunShot Initiative, which is a national effort to make solar energy cost-competitive with traditional energy sources by the end of the decade. Through SunShot, the Energy Department supports private companies, universities, and national laboratories working to drive down the unsubsidized price of utility-scale solar electricity to six cents a kilowatt-hour. Learn more at energy.gov/sunshot.

NREL is the U.S. Department of Energy’s primary national laboratory for renewable energy and energy efficiency research and development. NREL is operated for the Energy Department by The Alliance for Sustainable Energy, LLC.

— Solar Builder magazine

Obama’s Unveiling of Climate Plan Must Ditch ‘All of the Above’ Energy Policy

Tomorrow the President clearly wants to show climate leadership. His intervention is welcome, but this time he must not fluff his lines. And that means no more “All of the Above,” as well as no KXL …