Calpine Corporation has successfully commenced commercial operations at its Russell City Energy Center and Los Esteros Critical Energy Facility, both located in the San Francisco Bay area. Together, the two plants bring on-line more than 900 megawatts of modern, efficient and environmentally responsible combined-cycle natural gas-fired power generation capacity capable of meeting the electric needs of about 750,000 households. The full power output of both plants will be delivered to Calpine’s customer, Pacific Gas and Electric Company (PG&E), which will also supply the natural gas fuel, under 10-year power purchase agreements.
The innovative 619-megawatt Russell City Energy Center, located in Hayward, California, uses the most advanced emissions control technology available today for a natural gas-fired power plant. The fuel-efficient, combined-cycle configuration allows Russell City Energy Center to respond to dynamic grid conditions while still minimizing greenhouse gas emissions. Additionally, the zero-liquid discharge plant will conserve water by using reclaimed wastewater from the City of Hayward’s Water Pollution Control Facility for all cooling and boiler makeup. This environmentally responsible process will prevent up to four million gallons of wastewater from being discharged into San Francisco Bay each day.
Calpine owns 75% of the project, or 464 megawatts of dispatchable capacity, and GE (NYSE:GE) unit GE Energy Financial Services owns the balance.
Approximately 650 local union workers were employed during peak construction at Russell City, and the plant now employs 30 full-time operations staff. The plant has generated more than $25 million to date in initial sales and property tax revenue, and recurring property tax revenues during operation are estimated at approximately $5 million annually to help fund local government services.
Located in San Jose, the Los Esteros Critical Energy Facility first began commercial operations in March 2003 as a 188-megawatt peaking power plant. The plant has now been upgraded to a combined-cycle facility capable of generating up to 309 megawatts. The upgrade and addition of heat-recovery steam generators and a steam turbine generator not only increases the plant’s generation capacity, it improves efficiency and environmental performance. The plant’s unique configuration enables a high degree of flexibility in generation output. It can ramp up and down quickly as the grid demands and remains capable of operating much like a peaking facility if needed. By using recycled wastewater from the San José-Santa Clara Regional Wastewater Facility, Los Esteros also will prevent up to an additional two million gallons per day from being discharged into San Francisco Bay.
Construction at Los Esteros employed approximately 300 local union workers at its peak. With the plant now commercially operational, 19 employees work on site full time, and another four serve Los Esteros in addition to other nearby Calpine plants. The upgraded plant is expected to contribute approximately $3 million annually in recurring tax revenues to local governments and generated approximately $5 million in one-time tax revenue as a result of the construction upgrade.
“Achieving commercial operations for these plants represents years of sustained effort by dozens of Calpine employees and contractors, and we are grateful for their dedication,” Mr. Fusco said. “These additions bring our total to 37 power plants in California with the capacity to generate more than 6,300 megawatts, including over 5,600 megawatts of natural gas-fired generation and 725 megawatts of renewable, baseload geothermal capacity at The Geysers.”