Energy Efficiency Market Transformation Opportunities for Texas

Energy Efficiency Market Transformation Opportunities for Texas September 13, 2007 A Public Example: Investing in Energy Efficiency FRED YEBRA, P.E., MBA, DirectorofDemand of Demand Side Management Austin Energy Fred is a registered engineer with 26 years of experience in the energy engineering field. He received his engineering degree from the University of Texas at Austin, and a Master of Business Administration degree from the University of Phoenix, Arizona. As Director of Austin Energy s Demand Side Management Division, Fred directs the energy efficiency customer services and utility demand side management for all residential, commercial, municipal and industrial electric customers. Austin s energy efficiency programs are recognized as successful models and have won numerous state and national awards. In his current position, Fred also directs the City of Austin s energy management plan to implement energy cost saving initiatives within the municipally ownedfacilities as the City of Austin s s Energy Manager. Fred s previous experience includes Central Power & Light Company, the Public Utility Commission of Texas, and the Governor s Office of Energy Management. Fred served as an engineering consultant with Texas Energy Engineering Services, and Energy Environment Interface, Inc. His experience also includes energy and environmental strategic planning, engineering consulting and project management, regulatory evaluations and compliance, and energy efficiency codes and standards. Fred is a founding member and past president of the Austin Chapter of the Association of Energy Engineers, and serves as a board member on the Texas Solar Energy Society. A Workshop Sponsored by Public Citizen with Texas Energy Efficiency Partnership & Electric Utility Marketing Managers of Texas Austin, TX

Investing in Energy Efficiencyi Energy Efficiency Market Transformation Opportunities for Texas August 13, 2007 Saving Energy Together 1

Austin Energy Municipally-owned 800,000 population Area > 400 sq. miles Generation 3,170 MWs Saving Energy Together 2

Energy Efficiency Peak kdemand Savings 800 MW's Save ed 600 400 200 0 1982-99 2000 2001 2002 2003 2004 Year Saving Energy Together 3

Austin City Council Resolution September 14, 1999 Cost-effective conservation programs shall be the first priority in meeting new load growth requirements of Austin Energy. Clean Energy Resolution August 28, 2003 Austin Energy Strategic Plan to ensure Austin remains a national and international leader in the development and use of clean energy Saving Energy Together 4

Austin Energy s Response Energy Efficiency is first priority 15% Demand-Side Management by 2020 20% Renewable Energy by 2020 100 MWs of Solar by 2020 Commercial, Residential Energy Efficiency and Solar Rebate Programs Saving Energy Together 5

Austin Energy Strategic Goals 700 600 Demand Reduction and Savings 617 500 MW 400 300 Actual Forecast 200 100-2003 2005 2007 2009 2011 2013 2015 Fiscal Year Saving Energy Together 6

FY2007 Budget and Goals Program Area Budget Goal MW Commercial $ 4,024,170 14.49 Residential $ 6,078,991 11.25 Load Management $ 4,683,672 15.04 Solar $ 3,500,000.50 Grand Total $ 18,286,833 833 41.28 Saving Energy Together 7

DSM Reduction in Fuel Costs $0.030030 $0.029 $0.028 $0.027 Fuel Cost without t DSM $0.026 $0.025 $0.024 $0.023023 $0.022 $0.021 $0.020 Fuel Cost with DSM 2006 2007 2008 2009 2010 2011 2012 2013 2014 2015 Saving Energy Together 8

Cash Flow Projection of DSM FY05 Forecast DSM Analysis 2007 2008 Base Revenue Reduction $12,000,000 $16,000,000 Fuel Revenue Reduction $13,000,000 $15,000,000 Customer Savings (Bill Reduction) $25,000,000 $31,000,000 Saving Energy Together 9

Austin Climate Protection Plan Resolution on February 15, 2007 Make Austin the leading city in the nation in the effort to reduce and reverse the negative impacts of global warming. Saving Energy Together 10

Austin Climate Protection Plan Makes all COA facilities/fleets carbon neutral Facilities 100% renewable by 2012 Fleet carbon neutral by 2020 Makes Austin building codes most EE in nation Mechanisms for business to reduce carbon Austin Energy s GHG-reduction by 2020 Achieve 700 MW through energy efficiency Meet 30% energy needs with renewable energy Achieve carbon neutrality on new generation Establish CO 2 cap for utility emissions Saving Energy Together 11

Promoting Energy Efficiency Cash rebates that pay 20 30% of cost Up to 70% buy-down incentives for Small Business Direct install measures Free home and business energy audits Low-income Free Weatherization Engineering g Feasibility studies Inter-agency agreements Utility Key Account representatives Newsletter / Mail outs Saving Energy Together 12

Free Home Weatherization Energy Improvements: Insulate Attics Duct Sealing Install CFLs Installing Solar Screens Caulking and Weather-stripping Free Smoke & Carbon Monoxide Detector Minor Energy Related Repairs Saving Energy Together 13

Power Saver Program FREE Energy Saving Products Lower energy costs 65,000 installed in homes, apartments 4,000 installed in commercial buildings Saving Energy Together 14

Home Energy Efficiency Air Duct System Average Home Has 27% Duct Leakage Attic Insulation 30% of Homes Heat Gain Comes from Attic Solar Shading Can Reduce Sizing of A/C by ½ Ton Saving Energy Together 15

Cycling A/C Thermostats Cycling Session, June 15, 2005 vs Actual Load 2193-MW Forecast 2200 Curtailment Session Start Curtailment Session Finish 2174-MW MW 2150 Forecast 2100 1500 1600 1700 1800 1900 2000 Act Load Hour Saving Energy Together 16

Commercial Rebates Summary of Technologies EE Lighting retrofits Air Conditioning Unit Solar Film/Screens Ceiling/Roof Insulation Reflective Roof Coatings Premium Efficiency Motor Variable Frequency Drives (VFD s) Retro commissioning Thermal Cool Storage Custom technologies Saving Energy Together 17

Solar Rebate Program 100 Mega-watts of solar by 2020. Rebates among the nation s largest. Encourage installations on homes & businesses. Demonstrations in Schools Demonstrations in City buildings Saving Energy Together 18

Solar Rebate Program Pays maximum of $4,500 per kw. Residential rebates capped at $13,500 Commercial rebates capped at $100,000. 000 Saving Energy Together 19

Municipal Energy Management Performance Contracting Tentatively ti identified d $15,000,000 in EE projects Detailed Energy Audit s in progress in 9 Departments exceeding 2,000,000 sq. ft. Currently $5,000,000 LoanSTAR from SECO Planning to submit for $5,000,000 for water utility projects. Saving Energy Together 20

Strategic Conservation Municipal Energy Conservation Program Traffic Signal Conversion to LED 5,500 traffic signals Existing incandescent lamps 135 watts New LED lamps 15 watts Energy savings per lamp 120 watts 90% energy reduction Saving Energy Together 21

Energy Conservation in Public Facilities Fluorescent Streetlight Test 900 Block of West Avenue Existing High Pressure Sodium New Fluorescent Existing 3-250 Watt HPS = 885 Watts (@295 Watts/Ea) Existing 2-100 Watt HPS = 250 Watts (@125 Watts/Ea) Existing Total 1,135 Watts New 5-100 Watt Fluor = 515 Watts (@103 Watts/Ea) Reduction = 620 Watts A 55% Reduction Saving Energy Together 22

Energy Conservation in Public Facilities Saving Energy Together 23

Energy Conservation in Public Facilities Senate Bill 5 Energy Use vs. Energy Cost 350 30.0 Gigawatt-ho ours 345 340 335 330 325 320 315 310 305 300 29.0 28.0 27.0 26.0 25.0 24.0 23.0 Million Dolla ars 295 Base Year 2002 2003 2004 2005 2006 2001 22.0 Million kwh Cost Saving Energy Together 24

Questions? Saving Energy Together 25

Load Shifting - Thermal Storage Austin-Bergstrom International Airport - July 1999 2500 12 AM 2 AM 4 AM 6 AM 8 AM 10 AM 12 PM 2 PM 4 PM 6 PM 8 PM Time of day 12 PM 0 10 PM 1 4 7 10 13 16 19 22 25 Day of Month 28 31 500 2000 1500 1000 Central Plant Demand (kw) Saving Energy Together 26

Demand Response June 15, 2005 Peak Day: June 2, 2005 June 15, 2005 Saving Energy Together 27

Building Retrofit-Commissioning High Tech Industry Re-tuning & calibrating an existing building Savings estimate: $260,000 per year Utility incentive: $10,000 for initial assessment Total cost of project was $149,000 Economic payback was 7 months. Saving Energy Together 28

High Bay Fluorescent Retrofit Manufacturing Facility Converted (514) 400-watt HID lamps to 4-lamp 240-watt T5 HO Fluorescents Annual Cost Savings: $43,812 Project Cost: $122,800 Utility rebate: $33,153 (27% of job cost) Payback was 2 years Saving Energy Together 29

Reflective Roof Coating Target Commercial facilities with flat, dark colored roofs Rebate up to $0.15/sq. ft. 300,000 sq. ft. roof Expected Savings 192,000 kwh/year; total of 148 kw Saving Energy Together 30

Home Energy Efficiency Energy Usage After Energy Improvements Base Home Retrofit Home Difference kwh/sq. Ft. kwh/sq. Ft. kwh/sq. Ft. 898 8.98 per Sq. Ft. 768 7.68 13kWh/S 1.3 kwh/sq. Ft. Improvement 2000 Sq. Ft. Base Home = 17,960 kwh Annual Usage Retrofit Home = 15,360 kwh Annual Usage kwh Savings = 2,600 kwh Cost Savings = $273 Saving Energy Together 31

Commercial Rebates Summary of Lighting i Technologies T-8 8&T T-5 High Efficiency Lighting Systems Compact Fluorescent Lamps (CFL s) LED (Light Emitting Diode) Exit Signs Incandescent to Fluorescent Conversions New building designs Re-lamping & Re-ballasting of Existing Fluorescent Fixtures High-Bay Fluorescent Systems Lighting Controls (occupancy sensors) Saving Energy Together 32

DSM Opportunity 2,500 2000 2,000 AE System Duration Curve -2004 Top 160 MW is used 40 hours per year MWs Gene erated 1,500 1,000 500 0 0% 10% 20% 30% 50% 60% 70% 80% 90% % of Yearly Hours Saving Energy Together 33

Energy Use Modification Peak Clipping Strategic t Conservation Load Shifting Saving Energy Together

AE DSM Programs Peak Clipping Power Partner A/C Cycling W/H Cycling Load Co-Op Represent 51% of new DSM program mix Saving Energy Together

AE DSM Programs Strategic Conservation Saving Energy Together Total Home Efficiency Small Business Efficiency Green Building Appliance Efficiencyi Multi-family Rebates Commercial Rebates Refrigerator Recycling Free Weatherization Municipal Conservation Air Duct Sealing Represents 32% of new DSM program mix

AE DSM Programs Load Shifting Time-of-Use Rate Thermal Energy Storage Systems Represents 17% of new DSM program mix Saving Energy Together

Promoting Energy Efficiency Cash rebates that pay 20 30% of cost Up to 70% buy-down incentives for Small Business Direct install measures Free home and business energy audits Low-income Free Weatherization Engineering Feasibility studies Inter-agency agreements Utility Key Account representatives Newsletter / Mail outs Saving Energy Together 38

Electronically Commutated Motors (ECM) Emerging Technology for Refrigeration Fans Replaces Shaded Pole and Permanent Split Capacitor Reduced energy consumption to 60% Relatively l Simple Retrofit Typical Paybacks Range from 2 to 3 years Saving Energy Together 39

Large Grocery Chain Retrofit Retrofit currently underway 22 Locations in Austin area Fans per location store ~ 200 fan/motors Energy Cost Savings ~$10,000 /location/yr Saving Energy Together 40