Marin Clean Energy and Calpine Sign Agreement to Displace System Power Purchases with Local, Affordable Energy

Calpine Corporation CPN, -0.43% and Marin Clean Energy (MCE) announced a new three-year agreement under which Calpine will deliver electric energy from Calpine's Delta Energy Center and other of its Northern California facilities through 2017. These facilities are part of Calpine's next generation of reduced-emission power plants fueled by natural gas.

This agreement will help support 25 full-time jobs at Calpine's Delta Energy Center and will also supply enough electric power to serve the average energy requirements of approximately 98,000 residential customers during the contract term. By switching from unspecified power sources to cleaner generating alternatives, such as Calpine's Delta Energy Center, MCE will achieve an approximate 11% reduction in attributed carbon emissions for each MWh delivered by Calpine to MCE.

"Today's power purchase agreement with Calpine is a win-win-win for MCE customers," said Dawn Weisz, CEO of Marin Clean Energy. "It allows us to support local jobs, reduce greenhouse gas emissions attributed to MCE's energy supply, and reduce average energy costs through the use of a highly reliable energy source."

"Calpine is excited to partner with MCE - a fellow environmental leader - to provide clean, reliable, affordable energy for MCE consumers," said Alex Makler, Calpine Senior Vice President, Western Region. "This agreement with MCE demonstrates the benefits of our continued investment in environmentally responsible generation resources. With this agreement, MCE consumers can feel confident they're helping do their part to meet our state's goals of reducing greenhouse gas emissions."

Calpine has long been a leader in producing clean, reliable low-carbon energy.

• Its unique portfolio of geothermal and gas-fired plants features one of the smallest environmental footprints in America's power generation sector. Calpine operates North America's largest geothermal power facility at The Geysers, producing nearly 16% of the renewable energy under California's Renewable Portfolio Standard.
• Calpine's facility in Hayward, California, was the first power plant in the country powered by clean natural gas to voluntarily accept a permit with a limit on greenhouse gas emissions.
• Calpine recently filed an amicus brief with the U.S. Supreme Court defending the EPA's authority to issue regulations requiring power plants to reduce their carbon emissions. It was the only power company to do so.

About MCE

MCE is a not-for-profit, community-based electricity provider that gives customers the choice of having 50% to 100% of their electricity supplied from clean, renewable sources such as solar, wind, bioenergy, geothermal and hydroelectricity at stable and competitive rates. By choosing MCE, customers help support new in-state and local renewable energy generation. For more information about MCE, visit www.mceCleanEnergy.org.

About Calpine

Calpine Corporation is America's largest generator of electricity from natural gas and geothermal resources. Our fleet of 88 power plants in operation or under construction represents nearly 27,000 megawatts of generation capacity. Serving customers in 18 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 - today.

Forward-Looking Information

In addition to historical information, this release contains forward-looking statements within the meaning of the Private Securities Litigation Reform Act of 1995, 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," "should," "estimate," "potential," "project" 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, 2013. 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. Given the risks and uncertainties surrounding forward-looking statements, you should not place undue reliance on these statements. Many of these factors are beyond our ability to control or predict. Our forward-looking statements speak only as of the date of this release. Actual results or developments may differ materially from the expectations expressed or implied in the forward-looking statements, and, other than as required by law, Calpine undertakes no obligation to update any such statements, whether as a result of new information, future events, or otherwise.