Skip to content
Brand AI

InterGen

Request correction

Corporate brand

Unclaimed

InterGen is a private American power plant operator founded in 1995, now owned by China Huaneng Group and Guangdong Yudean Group.

Last updated September 26, 2026

AI crawler reads

No AI crawler has read this profile yet.

Overview

InterGen is a private American power plant operator headquartered in Burlington, Massachusetts. The company was established in 1995 when Bechtel and Pacific Gas and Electric (PG&E) acquired the J. Makowski Company. In 1997 Shell Trading acquired PG&E's stake, which triggered a strong growth phase. In 2005 InterGen was sold to the Ontario Teachers' Pension Plan and AIG Highstar. In 2008 AIG Highstar sold its 50% stake to the Indian GMR Group. In 2011 China Huaneng Group and Guangdong Yudean Group acquired GMR's stake. InterGen develops, owns and operates power generation assets, with a portfolio that has historically included gas-fired, coal-fired and renewable energy projects across the Americas, Europe, Asia and Australia.

History

InterGen was founded in 1995 when Bechtel and Pacific Gas and Electric (PG&E) acquired the J. Makowski Company. In 1997 Shell Trading acquired PG&E's stake, which triggered a strong growth phase. In 2005 InterGen was sold to the Ontario Teachers' Pension Plan and AIG Highstar. In 2008 AIG Highstar sold its 50% stake to the Indian GMR Group. In 2011 China Huaneng Group and Guangdong Yudean Group acquired GMR's stake. The company is headquartered in Burlington, Massachusetts, and operates power plants internationally.

  • 2011

    China Huaneng Group and Guangdong Yudean Group acquired GMR's stake.

  • 2008

    AIG Highstar sold its 50% stake to the Indian GMR Group.

  • 2005

    Sold to the Ontario Teachers' Pension Plan and AIG Highstar.

  • 1997

    Shell Trading acquired PG&E's stake, triggering a strong growth phase.

  • 1995

    Founded when Bechtel and Pacific Gas and Electric (PG&E) acquired the J. Makowski Company.

Products and positioning

Independent power producer (IPP) focused on developing, owning and operating power generation assets globally.

Product categories. Power generation · Gas-fired power plants · Coal-fired power plants · Renewable energy projects

Recent events

  • Unconfirmed

    Reported

    Intergen appoints practice director[3]

    Intergen appointed Jo Jones to the newly created role of practice director – project management office, covering New Zealand and the United States.

Read more

Sources3 sources

  1. 1InterGen - Wikidatawikidata.org
  2. 2InterGen - Wikipedia (German)de.wikipedia.org
  3. 3Intergen任命实践总监nbr.co.nz

Cite this profile: Cite the canonical profile. /brand-wiki/intergen · Editorial policy · How profiles are compiled