First Solar’s ‘Series 3’ CdTe thin-film module platform offers harsh environment capability

Facebook
Twitter
LinkedIn
Reddit
Email

First Solar has launched a new evolution of its Series 3 CdTe thin-film PV module platform. The ‘Series 3 Black’ is said to incorporate First Solar's latest advances in conversion efficiency as well as additional features to enhance its performance in utility-scale power plants.

Problem

According to First Solar, around 90% of a PV power plant’s are located in hot temperature climates where module temperatures are above 25°C. Due to temperature coefficient impacts on module yields, limiting the temperature impact provides operators and owners with the best possible plant yield. Providing further enhancements due harsh desert environments could increase the reliability of the modules.

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

Solution

The all-black module's change in appearance results from the use of an advanced, all-black edge seal technology combined with an innovative encapsulation material that further enhances its field durability and demonstrates improvements in accelerated life testing results. Tighter scribe lines at the module edge are used. The Series 3 Black's performance in a wide range of operating environments is further validated by its new IEC 60068-2-68 “sand and dust test” certification, which measures durability in harsh desert environments characterized by blowing abrasive sand. First Solar retains its energy yield advantage in high temperature climates (temperature coefficient) where 90% of a PV plant’s generation can occur when module temperatures are above 25°C. The Series 3 Black is expected to have module conversion efficiencies of 12.9% to 13% plus.

Applications

Industrial and utility-scale PV power plants.

Platform

The certification complements existing IEC salt mist and ammonia certifications to provide a comprehensive range of independent testing that reflects world-class durability and performance in the harshest operating conditions. The Series 3 Black module maintains all the existing IEC certifications and UL listings for the Series 3 family which enable the 1000-volt system designs that typify the utility-scale power plants.

Availability

First Solar began to implement the Series 3 Black enhancements in production modules earlier this year.

Read Next

August 7, 2026
India’s Ministry of New and Renewable Energy (MNRE) plans to announce a scheme covering more than 10GW of polysilicon production capacity.
August 7, 2026
Despite the new power inverter ban from the Federal Communications Commission (FCC), the US manufacturing is expected to meet new inverter demand, according to an analysis from energy market research firm Wood Mackenzie.
Premium
August 7, 2026
PV Tech Premium spoke with several industry analysts about the FCC inverter ban and how it will impact the US solar industry.
Premium
August 7, 2026
Wood Mackenzie’s Joseph Shangraw discusses the challenges facing the US plug-in solar market and the pathway to wider adoption.
August 7, 2026
The US introduced a 15% tariff on imports of products using polysilicon and set minimum prices for polysilicon and its derivatives.
August 7, 2026
Solar module manufacturer Heliene has laid off 93 employees at its Mountain Iron solar module assembly plant in the US state of Minnesota.

Upcoming Events

Solar Media Events
October 13, 2026
San Francisco Bay Area, USA
Solar Media Events
November 3, 2026
Málaga, Spain
Solar Media Events
November 24, 2026
Warsaw, Poland
Solar Media Events
February 2, 2027
London, UK
Solar Media Events
April 20, 2027
Istanbul, Türkiye