A water company s journey for efficient energy management Nikolas Vokhshoori

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1 A water company s journey for efficient energy management Nikolas Vokhshoori Authors: Nikolas Vokhshoori, Gary Hilliard, Suhail Malki, Ahmet Tatlilioglu Los Angeles County Department of Public Works, Waterworks Division

2 LA County Waterworks Districts A division of the County Department of Public Works Waterworks mission is to provide to provide reliable, high-quality water in a safe, cost-effective, sustainable, and environmentally responsible manner. Supply water to over 250,000 people (3 rd largest water retailer in LA County)

3 LA County Waterworks Districts 115 water storage reservoirs (over 80 million gallons) 54 groundwater wells 151 booster pumps and pressure regulating stations 1,382 miles of water mains

4 Previous Energy Efforts Timeclocks Appropriate rate schedules High efficiency motors Routine well maintenance 350 kw Solar power Numerous other efforts

5 Timeclocks & Rate Schedule Restrict motors from operating during peak intervals Southern California Edison Customers Time of Use (TOU) Installed a series of timeclocks in spring 2013 Summer 2013 operation Summer 2012 operation Summer 2013 bill $120k less than Summer 2012

6 Timeclocks & Rate Schedule Optimize electric utilities Pumping and Agriculture Rates Option A or Option B Periodic analysis on electric usage Option A or Option B (For 2014, approximately $50k saved) Choosing TOU-PA-3 A or B Option B More Calculation Needed kwh Option A kw

7 Groundwater Wells Waterworks pumped approximately 23,000 acre-feet of water in 2013 Well pumps operating at high efficiency High efficiency motors (motors with η > 95%) Annual pump tests from electric provider (Southern California Edison) Routine well maintenance

8 Groundwater Wells Results of Well Maintenance Program 2007 to ,069,500 kwh $317,000 Before Well Rating Production Efficiency 35% Water Quality 20% Production Capacity 15% Sanding 10% Age 10% Casing Condition 5% Slot Visibility 5% Total 100% After

9 Renewable Energy Constructed Solar Field Array 350 kw worth of solar panels Put into service December 2012 To date generated 2,533,672 kwh Through rebates and generated electricity Saved $735,000» ($380,354 in rebates + electrical savings)

10 Collective of Previous Efficiency Efforts Efforts have reduced 5.1 million kwh since ,000,000 Cumulative kwh Reduction 5,000,000 Electrical Consumption 4,000,000 3,000,000 2,000,000 1,000, Year

11 Collective of Previous Efficiency Efforts Efforts have saved approximately $800,000 since 2007 $800,000 Cumulative Cost Savings $700,000 $600,000 $500,000 Amount ($) $400,000 $300,000 $200,000 $100,000 $ Year

12 Collective of Previous Efficiency Efforts Efforts have eliminated 3,600 metric tons of greenhouse gas emissions since ,600 Cumulative GHG Reduction 3,000 CO2 Equivalent (MT) 2,400 1,800 1, Year

13 Current Energy Efficiency Actions Created an Energy Master Plan What is an Energy Master Plan? Portfolio of projects

14 Goal of Master Plan Identify a portfolio of programs and projects to Reduce costs Reduce the Districts future energy usage Reduce greenhouse gas emissions Anticipation of regulatory requirements Energy conservation Greenhouse gas reduction

15 Master Plan Process Establish Baseline/Present State Project Identification & Assessment Project Evaluation & Prioritization Project Implementation EMP Tracking

16 Master Plan Process Establish Baseline/Present State Project Identification & Assessment Project Evaluation & Prioritization Project Implementation EMP Tracking

17 Establish Baseline/Present State Baseline tries to determine a reference point Baseline is defined as o Average of data from 2011, 2012, & 2013 Electrical consumption Electrical cost Greenhouse gas emissions

18 Energy Consumption Forecast Establish Baseline/Present State 50,000,000 Waterworks Forecasted Electrical Consumption Electrical Consumption (kwh) 45,000,000 40,000,000 35,000,000 30,000,000 25,000,000 20,000,000 15,000,000 10,000,000 5,000, Baseline Year Waterworks

19 Energy Cost Forecast Establish Baseline/Present State 12,000,000 Waterworks Forecasted Annual Electrical Cost 10,000,000 Electrical Cost ($) 8,000,000 6,000,000 4,000,000 2,000, Baseline Year Waterworks

20 Establish Baseline/Present State 35,000 Waterworks Forecasted GHG Footprint Greenhouse Gas Footprint (MT CO2 eq) 30,000 25,000 20,000 15,000 10,000 5,000 0 Baseline Year Waterworks

21 Master Plan Process Establish Baseline/Present State Project Identification & Assessment Project Evaluation & Prioritization Project Implementation EMP Tracking

22 Project Identification Project Identification & Assessment 1. Project Identification form a. Idea that positively affects water system 2. Project compiling a. Qualitative approach to filtering meaningful projects

23 Project Assessment Project Identification & Assessment 3. Project assessment a. Quantitative approach to measuring projects b. Project assessment form

24 Energy Project Amalgamation Project Identification & Assessment Renewable Energy Projects Coastline Dr. System Improvement Carbon Mesa System Improvement Electric Vehicles Customer Water Meters Sweetwater Mesa System Improvement Coolwater System Improvement VFD at Calmgarden Savings $60,000,000 Project Costs $31,000,000 Modify Vehicle Fleet

25 Energy Project Amalgamation Project Identification & Assessment Renewable Energy Projects Coastline Dr. System Improvement Carbon Mesa System Improvement Electric Vehicles Customer Water Meters Sweetwater Mesa System Improvement Coolwater System Improvement VFD at Calmgarden kwh Reduction 467,780,000 GHG Elimination 326,000 MT Modify Vehicle Fleet

26 Master Plan Process Establish Baseline/Present State Project Identification & Assessment Project Evaluation & Prioritization Project Implementation EMP Tracking

27 Project Evaluation Project Evaluation & Prioritization Developed procedure to measure project ideas objectively. Meet with project proposers to render scores Project Development & Constructability Cost/Cost-Effectiveness GHG Impacts and Environmental Impacts Operational Impacts

28 Master Plan Process Establish Baseline/Present State Project Identification & Assessment Project Evaluation & Prioritization Project Implementation EMP Tracking

29 Project Implementation Assign project to appropriate team Investigate funding Prepare project schedule

30 $50,000,000 Energy Master Plan Projects Net Present Value Waterworks Forecasted Energy Project Savings $40,000,000 $30,000,000 $20,000,000 Amount ($) $10,000,000 $ $10,000,000 -$20,000,000 -$30,000,000 Year

31 Waterworks Electrical Consumption Forecast with Priority Projects 50,000,000 Waterworks Forecasted Electrical Consumption Electrical Consumption (kwh) 45,000,000 40,000,000 35,000,000 30,000,000 25,000,000 20,000,000 15,000,000 10,000,000 5,000, Year Waterworks (No Change) Waterworks (EMP Implemented)

32 Waterworks Annual Electric Cost Forecast with Priority Projects $12,000,000 Waterworks Forecasted Annual Electrical Cost $10,000,000 Electrical Cost ($) $8,000,000 $6,000,000 $4,000,000 $2,000,000 $ Year Waterworks (EMP Implemented) Waterworks (No Change)

33 Waterworks GHG Footprint Forecast with Priority Projects 35,000 Waterworks Forecasted GHG Footprint Greenhouse Gas Footprint (MT CO2 eq) 30,000 25,000 20,000 15,000 10,000 5, Year Waterworks (EMP Implemented) Waterworks (No Change)

34 Master Plan Process Establish Baseline/Present State Project Identification & Assessment Project Evaluation & Prioritization Project Implementation EMP Tracking

35 Master Plan Process Establish Baseline/Present State Project Identification & Assessment Project Evaluation & Prioritization Project Implementation EMP Tracking

36 Tracking Each year after project completion monitor energy consumption and savings. Every 3 to 5 years, update the plan.

37 Master Plan Process Establish Baseline/Present State Project Identification & Assessment Project Evaluation & Prioritization Project Implementation EMP Tracking

38 Efficiency Efforts Summary Past (2007 to Present) 5.1 million kwh Reduced 3,600 MT CO 2 GHG Eliminated $1.1 million Saved Future 2034 Reduce electrical consumption: 378 million kwh Eliminate greenhouse gas emissions: 263,800 MT CO 2 equivalence (55,400 cars or 24,000 homes) $43.8 million Saved

39 Acknowledgments Malibu Field Office Lancaster Field Staff

40 Questions? Contact information Nikolas Vokhshoori

Southern California Edison s

Welcome to Southern California Edison s Energy Efficiency Programs 1 Energy Efficiency #1 Resource The California Energy Action Plan of 2005 establishes energy efficiency as the state s top priority procurement