September 22, 2009
    ISSUED BY:   PG&E Corporation, 1-800-743-6397


    Major Index Lists PG&E in the Top Ten Among S&P 500 and Global 500 Companies

    (San Francisco) –The Carbon Disclosure Project (CDP), an independent organization that
    maintains the largest global database of corporate climate change information, has listed PG&E
    Corporation (NYSE:PCG) as one of the leading companies in the world when it comes to openly
    sharing public information on greenhouse gas emissions, emissions reduction targets, and the
    implications of climate change for its business. The company ranked in the top ten on the Carbon
    Disclosure Leadership Index for both the S&P 500 and the Global 500, and is one of only four U.S.
    utilities to make the global listing. PG&E tied for first place as the CDP’s top-ranked utility

    The indices, compiled by PricewaterhouseCoopers (PwC) on behalf of CDP, provide an
    evaluation tool for institutional investors seeking to understand and manage risk associated with
    climate change. CDP is currently backed by 475 institutional investors with assets of more than $55
    trillion who sent the survey to 3,700 of the world's largest companies.

    “We’re pleased to be recognized for PG&E’s extensive reporting on the risks and
    opportunities that climate change presents to our business,” said Steve Kline, PG&E Corporation’s
    Chief Sustainability Officer. “We believe it’s critical that investors, customers, policy makers and
    other stakeholders have access to information that allows them to assess and understand the
    relationship between our business and the challenge of climate change. We’re committed to
    providing the information necessary to make this possible.”

    PG&E was among the earliest companies to voluntarily quantify and report greenhouse gas
    emissions, which is an essential first step in the longer-term effort to effectively and efficiently
    address this challenge. The company was a charter member of the California Climate Action
    Registry and, in 2002, became the first investor-owned utility in California to voluntarily complete
    a third-party-verified inventory of its CO2 emissions. PG&E has participated in the Carbon
    Disclosure Project since 2005.

    PG&E Corporation is an energy-based holding company whose core business is Pacific Gas
    and Electric Company. Pacific Gas and Electric Company is one of the largest combined natural gas
    and electric utilities in the United States. Based in San Francisco, with 20,000 employees, PG&E
    delivers some of the nation’s cleanest energy to 15 million people in northern and central

    The Global 500 Report including names of companies featured in the Carbon Disclosure
    Leadership Index can be found at www.cdproject.net. There is also more information on the
    Carbon Disclosure Leadership Index at PG&E’s environmental blog: http://www.next100.com/2009/09/corporations-endorse-climate-a.php. For more information about PG&E Corporation and Pacific Gas and Electric Company, please visit our web sites at www.37rehuo.net and www.pge.com.



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