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Innovative Energy Management Proves that it Pays to be Green AAEE Excellence in Environmental Engineering Conference Apr

Innovative Energy Management Proves that it Pays to be Green AAEE Excellence in Environmental Engineering Conference April 26, 2012. Mission Statement. The Sanitation Districts protect public health and the environment through innovative and cost-effective wastewater and solid waste management.

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Innovative Energy Management Proves that it Pays to be Green AAEE Excellence in Environmental Engineering Conference Apr

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  1. Innovative Energy Management Proves that it Pays to be Green AAEE Excellence in Environmental Engineering Conference April 26, 2012

  2. Mission Statement The Sanitation Districts protect public health and the environment through innovative and cost-effective wastewater and solid waste management

  3. Mission Statement The Sanitation Districts protect public health and the environment through innovative and cost-effective wastewater and solid waste management, and in doing so convert waste into resources such as recycled water, energy and recycled materials.

  4. Scholl Canyon Mission Canyon Calabasas Puente Hills Spadra Commerce South Gate DART Palos Verdes Transfer / MRF Open Landfill Refuse to Energy Facility SERRF Closed Landfill Solid Waste Facilities Map

  5. Puente Hills Landfill • 50 MW Gas-to-Energy Facility • In Operation Since 1987 • Power Sold to Local Utility Company • $22 Million in Annual Net Income

  6. Puente Hills Landfill • 5.4 MW IC Engine Facility • Started in 2005 Due to Surplus Gas Supply • Provides Power to San Jose Creek WRPand MainAdministrativeOffice • $4 Million in Avoided Power Purchases Per Year

  7. Wastewater Treatment Facilities Map

  8. Los Angeles County Sanitation Districts Energy Production and Sales SOLID WASTE FACILITIES LANDFILL GAS-TO-ENERGY 63 MW 91 MW POWER SALES DIGESTER GAS-TO-ENERGY 18 MW 30 MW WASTEWATER MANAGEMENT REFUSE-TO-ENERGY 40 MW CSD FACILITIES (only purchase 5 MW) REFUSE-TO-ENERGY

  9. Energy Revenues • Solid Waste Annual Power Sales Revenues • $62 Million Gross • $25 Million Net • Onsite Usage • Solid Waste – $1 Million in Avoided Power Purchases • Wastewater – $12 Million in Avoided Power Purchases

  10. Districts Energy Management Program $18 Million in Annual Savings from Three Aspects of Program: Develop Renewable Biogas Resources to Serve our Facilities - $13 million Minimize Energy Usage - $3 million Minimize Energy Cost - $2 million

  11. I. Develop Renewable Biogas Resources

  12. I. Develop Resources Pioneers in Renewable Energy Production Biogas-Powered IC Engines Provided Electrical Self-Sufficiency in 1939

  13. I. Develop Resources Joint Water Pollution Control Plant SECONDARY TREATMENT SOLIDS PROCESSING POWER PLANT ANAEROBIC DIGESTION PRIMARY TREATMENT

  14. I. Develop Resources JWPCP Biogas Production • Centralized Solids Processing • 1,250 Wet Tons of Biosolids Per Day • 24 Digesters – 495,000 Cubic Feet Each • 8.1 Million Cubic Feet of Digester Gas Per Day

  15. I. Develop Resources Total Energy Facility •3 Gas Turbines • 1 Steam Turbine • 22 MW Net Output •Combined Cycle Power Plant • Digester Gas Fueled • Began Operation in 1986

  16. I. Develop Resources Total Energy Facility

  17. I. Develop Resources Total Energy Facility • Provides Entire 18 MW of Electricity Needed for Treatment Plant • Small Amount of Export Improves Plant Reliability – Protected from Blackouts and Fluctuations on the Grid • $12 Million in Annual Savings

  18. II. Minimize Energy Usage

  19. II. Minimize Usage Joint Outfall System Design Joint Outfall System Trunk Sewers

  20. II. Minimize Usage Energy Efficient Design

  21. II. Minimize Usage Process Improvement Before After Whittier Narrows Water Reclamation Plant Process Air Compressor Replacement Plant Power Usage Reduced by 22%

  22. II. Minimize Usage Process Improvement • 977 Gallery Lighting Fixtures Replaced • 189 W to 69 W – 1,000,000 kWh Annual Savings • Improved Working Conditions Before After

  23. III. Minimize Energy Cost

  24. III. Minimize Cost Direct Access • Electricity Purchased from Third Party Direct Access Provider • Savings of $1 Million Per Year over Standard Utility Rates

  25. III. Minimize Cost Demand Response Compensation For Availability to Reduce Plant Electricity Usage by 500 kW When Called Upon During Grid Emergencies

  26. III. Minimize Cost Tracking Energy Efficiency Savings

  27. III. Minimize Cost Recent Utility Rebate Incentive Projects • JWPCP Gallery Lighting Retrofit • JWPCP Centrifuge Replacement • IT Computer Virtualization • Whittier Narrows WRP Secondary Treatment Facility Modifications • Lancaster WRP Stage Five Plant Expansion • Palmdale WRP Stage Five Plant Expansion • Westlake Farms Composting Facility Administration Building

  28. III. Minimize Cost Utility Rebate Incentives Questions?

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