SOLARWATT passes LeTID IEC test by VDE Renewables

Facebook
Twitter
LinkedIn
Reddit
Email
SOLARWATT has successfully met the IEC CD 61215-1: Ed.2.0 test for Light and elevated Temperature Induced Degradation (LeTID) for its Vision 60M series PV panels, undertaken by testing and certification house, VDE Renewables. Image: SOLARWATT

Germany-based PV module manufacturer SOLARWATT has successfully met the IEC CD 61215-1: Ed.2.0 test for Light and elevated Temperature Induced Degradation (LeTID) for its Vision 60M series PV panels, undertaken by testing and certification house, VDE Renewables.

The IEC CD 61215-1: Ed.2.0 LeTID test includes two temperature cycles of 162 hours each with an applied current to simulate the LeTID phenomenon that can impact PERC (Passivated Emitter Rear Cell) based panels, which causes power degradation. 

This article requires Premium SubscriptionBasic (FREE) Subscription

Unlock unlimited access for 12 whole months of distinctive global analysis

Photovoltaics International is now included.

Not ready to commit yet?
  • Regular insight and analysis of the industry’s biggest developments
  • In-depth interviews with the industry’s leading figures
  • Unlimited digital access to the PV Tech Power journal catalogue
  • Unlimited digital access to the Photovoltaics International journal catalogue
  • Access to more than 1,000 technical papers
  • Discounts on Solar Media’s portfolio of events, in-person and virtual

Or continue reading this article for free

Under the IEC test, a pass criterion is awarded should the tested panel performance degrade less than 5% after the two cycles. In VDE Renewables' testing of SOLARWATT’s Vision 60M series product, degradation was certified to have been only 1.81%.

Norbert Betzl, director of product management solar panels at SOLARWATT said that “We strive for the best possible assurance of the performance of our solar modules, the predicted efficiency should be maintained in practice. It is essential for us to rule out a deterioration due to the LeTID effect as far as possible.”

Read Next

Premium
August 28, 2025
US solar companies could potentially pay “tens of billions” of dollars in retroactive duties on products imported from Southeast Asia between June 2022 and June 2024, following a decision from the US Court of International Trade (CIT).
August 27, 2025
Independent power producer RP Global is building a 50MWp solar project in Harbke, Germany.
August 27, 2025
Long-term procurement decisions from the US solar industry could support US solar manufacturing, regardless of changes to federal tax credits, PV Tech has heard.
Premium
August 27, 2025
American Clean Power Association’s MJ Shiao assesses the state of US PV manufacturing in the wake of recent policy developments.
August 26, 2025
US-based solar module manufacturer Bila Solar will include US-made steel module frames in its 550W dual-glass products.
August 21, 2025
JA Solar's CTO, Zi Ouyang, discusses the company's latest module technologies and why the future is tandem.

Subscribe to Newsletter

Upcoming Events

Solar Media Events
September 16, 2025
Athens, Greece
Solar Media Events
September 30, 2025
Seattle, USA
Solar Media Events
October 1, 2025
London, UK
Solar Media Events
October 2, 2025
London,UK
Solar Media Events
October 7, 2025
Manila, Philippines