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California's Local Energy Efficiency Program Identifies Unique Designs and Energy Savings at WWTPs

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Abstract:

The Inland Empire Utilities Agency (IEUA), a special district municipal water agency, is located in the southwest corner of San Bernardino County, approximately 35 miles east of Los Angeles, and provides regional wastewater service and imported water deliveries to eight contracting agencies over 242 square miles. In the fall of 2004, IEUA was selected as the municipal water/wastewater utility case study for the California Local Energy Efficiency Program (CALeep) funded in part by the California Public Utility Commission (CPUC). IEUA received matching funds of $75,000 for a total project budget of $150,000 to complete this effort.

The purpose of CALeep was to develop a program to assist local governments in the implementation of conservation and self-generation programs that aggressively promote and achieve energy savings. The recommendations of this case study, if fully implemented, have the potential of future energy savings of approximately 28,583,500 kWh/yr with a value of $3,572,000 annually to the IEUA based on current energy prices. The purpose of this paper is to discuss the innovative energy-saving projects the IEUA investigated during CALeep.

Keywords: CALEEP; CALIFORNIA PUBLIC UTILITY COMMISSION; EFFICIENCY; ENERGY; RECYCLED WATER; WASTEWATER TREATMENT

Document Type: Research Article

DOI: https://doi.org/10.2175/193864707787780530

Publication date: 2007-10-01

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