Hedge fund activist and yieldco architect resigns from SunEdison board

January 22, 2016
Facebook
Twitter
LinkedIn
Reddit
Email
Tesoriere is managing principal and portfolio manager at US hedge fund, Altai Capital Management and was noted as a key player in SunEdison’s transformation from a polysilicon producer (formerly MEMC) to a major renewables energy firm.

Troubled renewables firm SunEdison has disclosed that Steven Tesoriere, a member of its board of directors since 2012 has resigned his position with immediate effect.

Tesoriere is managing principal and portfolio manager at US hedge fund, Altai Capital Management and was noted as a key player in SunEdison’s transformation from a polysilicon producer (formerly MEMC) to a major renewables energy firm. Tesoriere has also been credited as a driving force behind its yieldco strategy. Altai is also a major investor in the SunEdison yieldco, Terraform Power.

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

SunEdison said in an SEC filing that Tesoriere’s resignation was not due to any disagreement with the company.

Read Next

February 3, 2026
Integrating more private investment into Europe’s grid infrastructure will be a necessity if the continent's bottlenecks are to be overcome.
February 3, 2026
There has been a 'clear cooling' of appetite for new renewable energy investments in the US, according to speakers at SFIEU 2026.
January 26, 2026
Global clean energy investment reached a record US$2.3 trillion in 2025, an 8.1% increase over the previous year, according to BNEF.
January 19, 2026
I Squared Capital has launched ANZA Power, a new IPP aiming to deliver reliable and sustainable energy across Australia & New Zealand. 
November 27, 2025
The South Korean Ministry of Economy and Finance has unveiled a plan to invest KRW33.6 billion (US$22.9 million) in research and development (R&D) by 2026 in solar tandem cell and module technology.
November 20, 2025
Climate Fund Managers (CFM) has started commercial operations at the 26.4MW Pétalo del Norte I solar PV project in Colombia.

Upcoming Events

Solar Media Events
February 3, 2026
London, UK
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