JWPCP Total Energy Facility

COMBINED HEATĀ AND POWER
DISTRIBUTED GENERATION
RENEWABLE ENERGY

Joint Water Pollution Control Plant



JWPCP Total Energy Facility

22 MW power for on-site use
Avoids $20 million per year in electricity purchases

24501 S. Figueroa Street
Carson, CA 90745

BACKGROUND

The JWPCP is one of the largest wastewater treatment plants in the world and is the largest of the Sanitation Districts' wastewater treatment plants. The facility provides both primary and secondary treatment for approximately 300 million gallons of wastewater per day. The plant serves a population of approximately 3-1/2 million people throughout Los Angeles County.

In the early 1980s, the Sanitation Districts conducted an extensive study that determined that a new gas turbine combined cycle digester gas power generating facility best matched the power and digester heating needs. The initial facility included three solar gas turbines and a steam turbine with a combined output of 15 MW. In 2000/2001, the Sanitation Districts increased the maximum design capacity to approximately 35 MW of electricity. This facility currently generates 20 MW of electricity for onsite use. This output meets the onsite power and heating needs for wastewater treatment.

POWER GENERATION AND HEAT RECOVERY

The power generating facility consists of three Solar Mars gas turbines each rated for a gross output of 9.9 MW. These turbines exhaust into heat recovery steam generators for production of steam that is used for digester heating and/or the production of electricity with a steam turbine.

The facility is designed for fully automated operation and can operate in parallel with the grid or independently of the utility.

BENEFITS

The on-site generation of power permits the JWPCP to be self-sufficient with respect to its energy requirements upon failure of the local utility. In a typical year, the facility meets approximately 95 percentĀ of plant power needs, while saving close to $20 million in retail power purchases.