Suntech modules pass VDE Institute’s enhanced hail test

April 7, 2015
Facebook
Twitter
LinkedIn
Reddit
Email

Suntech’s PV modules have received the VDE Quality-Tested certification, placing them as one of three brands globally to have passed VDE Institute’s enhanced hail test. 

Dr. Han Qiang, VDE's General Manager in Shanghai said: “At present, most manufacturers have passed the hail test based on the standard IEC61215, which uses hail of 25mm in diameter to hit the surface of modules, producing about 1.99J of energy during the test. Yet, the VDE test uses hail of 40mm in diameter, the 4th level of hail test in accordance with Swiss standards, which uses hail at a speed of 27.5m/s to hit the modules, producing energy no less than 11.1J, which simulates extreme environmental conditions.”

This article requires Premium SubscriptionBasic (FREE) Subscription

Try Premium for just $1

  • Full premium access for the first month at only $1
  • Converts to an annual rate after 30 days unless cancelled
  • Cancel anytime during the trial period

Premium Benefits

  • Expert industry analysis and interviews
  • Digital access to PV Tech Power journal
  • Exclusive event discounts

Or get the full Premium subscription right away

Or continue reading this article for free

“The cells of PV modules will have micro-cracks if used in areas that experience frequent hail storms, which is detrimental to module performance and long-term reliability,” added Xiong Haibo, CEO of Suntech.

According to the VDE tests, Suntech's modules experienced little or no power loss and met the enhanced standard hail test requirements in extreme weather conditions.

Tier-one PV manufacturer and clean energy developer Shunfeng International Clean Energy (SFCE) recently reported Wuxi Suntech’s PV modules sales in 2014 were 645.1MW, generating US$391.5 million in revenue. 

Read Next

Premium
December 11, 2025
Slowing solar PV and energy storage installations in Europe risks “competitiveness and security at a pivotal moment”, according to the head of SolarPower Europe.
December 11, 2025
The European Commission has proposed improvements to Europe’s energy infrastructure, aiming to accelerate the grid permitting process.
December 11, 2025
Italy has awarded 88 projects for a combined 1.1GW of solar PV in its Net Zero Industry Act (NZIA) non-price criteria FER-X auction.
December 11, 2025
Floating solar PV (FPV) firm Ciel & Terre has unveiled a new floating structure, dubbed WattRack, with a rail-based structure.
December 10, 2025
The US SEIA has named board chair Darren Van’t Hof as interim president and CEO, to begin work 20 January 2026.
December 10, 2025
Italy's NZIA FER-X auction aims to diversify Europe's supply chain, but this brings its own challenges, writes Patrizio Donati.

Upcoming Events

Upcoming Webinars
December 17, 2025
2pm GMT / 3pm CET
Solar Media Events
February 3, 2026
London, UK
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA