Emissions Benchmarking Report Illustrates Calpine’s Environmental Leadership

  Emissions Benchmarking Report Illustrates Calpine’s Environmental Leadership

Business Wire

HOUSTON -- May 16, 2013

Calpine Corporation (NYSE:CPN) is one of the nation’s largest generators of
electricity and, according to a report issued this week, it is among the
cleanest. A report by M.J. Bradley & Associates analyzes 2011 power generation
and air emissions data for the top 100 power producers in the United States,
including investor-owned utilities, independent power producers, and
governmental power authorities and utilities districts. The report shows that
Calpine, listed as the tenth largest power producer overall and the largest
independent power producer, was ranked among the lowest in air emissions rates
– 81^st for sulfur dioxide, 82^nd for nitrogen oxides and 89^th for carbon
dioxide – among all fossil fuel fleets. In addition, because Calpine’s fossil
fuel fleet consists of clean, efficient and flexible natural gas-fired plants,
it had no mercury emissions.

Calpine’s combined-cycle, natural-gas fired plants not only provide power but
have the flexibility critical to the integration of intermittent
renewable-sourced power into the grid. Calpine’s highly efficient natural
gas-fired cogeneration plants are partners to American industry, providing
steam and power for operations ranging from fruit drying, to airport and
university heating and cooling, to petrochemical production. Finally,
Calpine’s geothermal fleet, unlike intermittent renewables such as wind and
solar, provides renewable-sourced power all day, every day.

“Since Calpine’s inception, environmental stewardship has been a guiding
principle in everything we do. The report notes that the power industry
overall has cut NO[x] and SO[2] emissions while increasing production and
Calpine is proud to have been a leader of this trend. We believe a strong
commitment to the environment is inextricably linked to excellence in power
generation, corporate responsibility and shareholder value and we have
invested accordingly,” said Calpine’s Chief Executive Officer Jack Fusco.
“Calpine is well positioned to continue benefiting from factors identified by
M.J. Bradley & Associates as the underlying cause of emission reductions –
greater use of plentiful and affordable cleaner-burning natural gas as older
coal plants that do not have upgraded environmental controls are retired. Our
existing fleet has additional production capacity poised to meet the need for
power that will come as older coal plants retire and power demand increases
with an improving economy.”

The report, Benchmarking Air Emissions of the 100 Largest Electric Power
Producers in the United States, was commissioned by a group of power producers
along with the Natural Resources Defense Council, CERES and Bank of America.

About Calpine

Calpine Corporation generates more electricity than any other independent
power producer in America, with a fleet of 93 power plants in operation or
under construction, representing more than 27,000 megawatts of generation
capacity. Serving customers in 20 states and Canada, we specialize in
developing, constructing, owning and operating natural gas-fired and renewable
geothermal power plants that use advanced technologies to generate power in a
low-carbon and environmentally responsible manner. Our clean, efficient,
modern and flexible fleet is uniquely positioned to benefit from the secular
trends affecting our industry, including the abundant and affordable supply of
clean natural gas, stricter environmental regulation, aging power generation
infrastructure and the increasing need for dispatchable power plants to
successfully integrate intermittent renewables into the grid. We focus on
competitive wholesale power markets and advocate for market-driven solutions
that result in nondiscriminatory forward price signals for investors. Please
visit www.calpine.com to learn more about why Calpine is a generation ahead –

Forward-Looking Information

In addition to historical information, this release contains forward-looking
statements within the meaning of Section 27A of the Securities Act of 1933, as
amended, and Section 21E of the Securities Exchange Act of 1934, as amended.
Words such as “believe,” “intend,” “expect,” “anticipate,” “plan,” “may,”
“will” and similar expressions identify forward-looking statements. Such
statements include, among others, those concerning expected financial
performance and strategic and operational plans, as well as assumptions,
expectations, predictions, intentions or beliefs about future events. You are
cautioned that any such forward-looking statements are not guarantees of
future performance and that a number of risks and uncertainties could cause
actual results to differ materially from those anticipated in the
forward-looking statements. Please see the risks identified in this release or
in Calpine’s reports and registration statements filed with the Securities and
Exchange Commission, including, without limitation, the risk factors
identified in its Annual Report on Form 10-K for the year ended Dec. 31, 2012.
These filings are available by visiting the Securities and Exchange
Commission’s website at www.sec.gov or Calpine’s website at www.calpine.com.
Actual results or developments may differ materially from the expectations
expressed or implied in the forward-looking statements, and Calpine undertakes
no obligation to update any such statements.


Calpine Corporation
Media Relations:
Norma F. Dunn, 713-830-8883
Investor Relations:
Bryan Kimzey, 713-830-8775
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