Bio-based PV backsheet gets provisional UL relative to thermal index designation

October 27, 2011
Facebook
Twitter
LinkedIn
Reddit
Email

BioSolar advised that its BioBacksheet has been granted provisional relative thermal index (RTI) recognition by Underwriters Laboratories (UL). The company first received UL materials certification for its technology in February and since that time has seen the UL conduct long-term thermal stability testing on the BioBacksheet.

The official provisional RTI designation by UL should permit solar panel manufacturers to use the BioBacksheet in the production of the panels towards the achievement of full UL certification, which the company “expects to be merely a procedural matter.”

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

Dr. David Lee, the company’s CEO, commented, “This is a defining moment for BioSolar. By receiving the official provisional RTI designation from UL, we have completed the final product development milestone for BioBacksheet. I am pleased to report that we are finally ready to accept commercial orders. During the past two years, we have worked closely with several key solar manufacturers that will now be sending their panel to UL for final certification. Once their revised panels are re-certified with BioBacksheet, these customers will be able to sell their solar panels in the general marketplace.”

Read Next

February 13, 2026
Inox Clean Energy has partnered with integrated renewable energy platform RJ Corp to expand into Africa’s renewable energy markets.
Premium
February 13, 2026
PV Talk: Charith Konda, energy specialist at IEEFA, says India’s 2026-27 budget aims to “establish a stronger supply chain within the solar and PV cell and module sector,” but warns that “execution is as important as the policy itself.”
February 13, 2026
Germany’s federal network agency (Bundesnetzagentur) has announced the results of its latest ground-mount solar auction, which closed with bids for more than twice as much capacity as was tendered.
February 13, 2026
AES Indiana, a subsidiary of US utility AES Corporation, has started commercial operations at a 250MW solar-plus-storage plant in Pike County, Indiana, US.
February 13, 2026
The US Treasury’s interim Foreign Entity of Concern (FEOC) guidance is “in line with expectations” according to a US renewable energy supply analyst.
February 13, 2026
Solar PV installations in India have reached a record 36.6GW in 2025, a 43% increase from the previous year’s 25GW.

Upcoming Events

Upcoming Webinars
February 18, 2026
9am PST / 5pm GMT
Solar Media Events
March 24, 2026
Dallas, Texas
Solar Media Events
April 15, 2026
Milan, Italy
Solar Media Events
June 16, 2026
Napa, USA
Solar Media Events
October 13, 2026
San Francisco Bay Area, USA