Private company

Alta Devices

Solar energy company

Alta Devices was a US-based specialty gallium arsenide (GaAs) PV manufacturer, which claimed to have achieved a solar cell conversion efficiency record of 29.1%, as certified by Germany's Fraunhofer ISE CalLab. It was purchased by the Chinese company Hanergy in 2013 and was shut down without notice in 2019.2 Wikipedia text CC BY-SA 4.0

Last updated Oct 21, 2026.

Overview

2007Founded1

Alta Devices was a US-based specialty gallium arsenide (GaAs) PV manufacturer, which claimed to have achieved a solar cell conversion efficiency record of 29.1%, as certified by Germany's Fraunhofer ISE CalLab. It was purchased by the Chinese company Hanergy in 2013 and was shut down without notice in 2019.2

Timeline

  1. 2007Founded Founded1

Sources

The numbers on this page point here. Each one links to the record it came from.

  1. 1
  2. 2