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Duke Energy Indiana: Overview of Renewable Energy, Distributed Generation, Energy Storage and Electric Vehicles July 23, 2013.

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Presentation on theme: "Duke Energy Indiana: Overview of Renewable Energy, Distributed Generation, Energy Storage and Electric Vehicles July 23, 2013."— Presentation transcript:

1 Duke Energy Indiana: Overview of Renewable Energy, Distributed Generation, Energy Storage and Electric Vehicles July 23, 2013

2 Agenda Duke Energy offerings:  Net metering  Qualifying Facility Tariff  GoGreen Power  Emerging Technology Department  Electric Vehicle  Energy Storage  Commercial Renewable Energy 2

3 Net Metering* by the Numbers– Duke Energy Indiana  207 current customers:  18 schools  157 residential  32 commercial  Of these, 51 were new in 2012  Current composition:  994 kW solar  1305 kW wind  Total = 2299 kW  Of the 207 customers:  176 solar  31 wind 3 * Rider No. 57

4 Net Metering and Interconnection 4 Net Metering EligibilityInterconnection All customer classes Renewable energy sources Not more than 1 MW Located on customer’s premises Connected in parallel with the company’s transmission or distribution system Used to offset all or part of a customer’s requirements Rolling credits for excess generation at retail rate Application (Rider No. 80) Three levels of application (size-based) Electrical diagram UL certification of equipment Site drawing Insurance Inspection

5 Qualifying Facility Tariff (Rider No. 50)  Available to any customer  2 options:  Energy only  Capacity and Energy  Payment is based on proscribed IURC avoided cost methodology  Tariff is updated and approved by IURC annually  Current tariff:  $.028451/kWh  $7.05/kW-month (dependent on capacity factor during on peak periods)  Under a separate tariff (No. 51- Parallel Operation of Customer Owned Generation), Duke Energy Indiana has the option to purchase generator output at a negotiated rate, subject to IURC approval 5

6 GoGreen Power Tariff (Rider No. 56)  Gives customers the ability to support the development of green power sources throughout the state and the region  Customers can purchase a minimum of two 100-kilowatt-hour (kWh) blocks of green power for $2 a month  Price per block has over life of program been reduced from $2.50 to $2.00 and then to $1.00. Agreed with OUCC to further reduce to $0.90 in early 2014 if GoGreen revenues are sufficient.  A 200 kWh commitment  equates to about 20 percent of an average residential customer’s electricity use  helps to avoid 4,800 pounds of carbon dioxide emissions each year  As of June 30, 2013:  1,359 customers  812,800 kWh per month  GoGreen not subsidized by non-participating customers 6

7 In Development - NC Green Tariff (Google)  Responsive to customers’ desire for a “green power rate” (without having to actually own the assets)  July commitment to file tariff application  Filing for Duke Energy Carolinas – NC characterized as a pilot offering  Structural elements of program to be included in filing  Program parameters under development:  Customers on select rate schedules can participate  New and existing load eligible  Per customer and aggregate program limits  Structure gives consideration to:  Customer alternatives for Green Energy  How best to position this initial filing to enable expansion to additional jurisdictions and additional customer classes  Sourcing from Duke Energy-owned resources and the market 7

8 Emerging Technology Office Future Adv. Nuclear Technology Categories Emerging Technology Strategic Objectives RenewablesEnergy Storage 8 Water Smart Grid Clean Combustion Electric Vehicles Transformational Supportive Identify and assess emerging technologies to evaluate opportunities for and threats to Duke Energy’s business model Shape technical and market development for new technologies Facilitate technology adoption across impacted business units Technology assessment and development process + External engagement and leadership Establish Duke Energy’s public reputation as a leader in understanding, developing and applying technology in the utility industry Extend Current Regulated Business model Introduce Regulated Growth opportunities Introduce Commercial Growth Opportunities Identify Opportunities

9 Project Plug-IN  Partially funded by DOE  Goal: Deploy EV and Smart Grid related infrastructure  Numerous partners involved throughout the State of Indiana 9 Vehicle Data EVSE Data

10 Electric Vehicle Charging Infrastructure  Duke Energy has installed:  85 residential units  10 units at state parks  10 units at Plainfield campus  39 commercial units  Total: 144 10

11 Energy Storage 11 Energy Storage Benefits Generation Frequency Regulation Renewable Smoothing Energy Shifting Spinning and Non-spinning Reserves Limit Peaker Plant Builds T & D Defer System Upgrades Improve Reliability Renewable Smoothing Improve Power Quality (Volt / VAR management) End User Provide Back Up Power Utilize lower retail rates Capital Costs O & M Costs Installation Hurdles Operational Issues Value Streams Through pilots we understand… …to develop Business models Regulatory models Understand benefits

12 Clay Terrace Energy Storage System Carmel, IN System attributes Applications being tested Major system components: 75 kW / 42 kWh system capacity Toshiba lithium titanate battery 9.8 kW roof-mounted solar Toshiba microEMS optimization Eaton 50 kW, Siemens 3.3 kW PEV charging stations Interconnection: Behind a commercial meter (customer sited) Interconnected at 208V, 3-phase transformer Located at Clay Terrace mall in Indianapolis 1 – active management of combined solar, storage and PEV charging (Micro-grid application) a) testing energy management system and sizing of a behind-the-meter system 2 – Energy shifting 3- Renewable Smoothing 4 – customer-sited installation aspects PEV DC Fast charging station 50 kW Eaton unit 10 kW solar roof-top Battery + Toshiba microEMS 75 kW / 42 kWh Toshiba Li-Titinate Level 2 PEV charging station J1772 up to 3.3 kW charging 12

13 Notrees Wind Farm Project Notrees, TX Applications being tested: Major system components: 36 MW / 24 MWh Xtreme Power Advanced Lead Acid Technology Co-located at site of 156 MW Wind Farm in Notrees, Texas Began commercial operation in December 2012 50:50 Cost share with DOE Ancillary Services Energy Shifting Avoidance of Wind Curtailment 13

14 McAlpine Energy Storage System McAlpine Creek Retail Substation, Charlotte, NC System attributes Applications being tested Major system components: 200 kW / 500 kWh system capacity BYD battery and inverter system All components integrated within on container Lithium-iron-phosphate battery (BYD) Interconnection: Located on a 24 kV distribution circuit Interconnected immediately outside of the substation Adjacent to 50 kW solar facility on McAlpine test circuit 1 – consolidated inverter/battery 2 – energy shifting applications a) dispatched based on schedule, local load peaks, etc 3 – integration with solar in a microgrid a) will be configured with switches, solar, and load to create an autonomous microgrid that disconnects from the circuit 4 – solar output smoothing/firming Installation Sep - Oct 2012, In service 4Q 2012 BYD battery 200 kW/500 kWh LiFePO 4 Inverter/Controls Integrated within one container Interconnected next to a 50 kW solar facility in a planned islandable micro-grid scheme that will use the battery for grid frequency/voltage regulation. x 14

15 Community Scale Second Life Battery University of Florida System attributes Applications being tested Major system components: 24 kW / 30 kWh system capacity Li-ion batteries designed for use in a Chevy Volt 24 kVA inverter system – ABB Interconnection: Located on a 120V/240V split single phase service At least one customer will be connected via the CES unit Specific customer TBD 1 – use of recycled electric vehicle batteries a) represents a potential low cost source of utility storage b) supports PEV economics 2 – community-scale storage applications a) energy shifting b) islanding/back-up power c) automatic voltage control Planned installation in 2-3Q 2013 Inverter/Controls 24 kVA capacity Will demonstrate a potential “second-life” battery application. Increases residual value of PEV’s and may provide low cost source of utility stationary storage. Battery container Above ground Li-Ion Chevy Volt batteries 24 kW / 30 kWh 15

16 Duke Energy Commercial Renewables Portfolio – Solar Solar ProjectsState% OwnedInstalled Capacity (MW) Blue WingTX100%14 Solar Star INC100%1 TaylorsvilleNC100%1 BagdadAZ100%15 Solar Star IINC100%5 RP OrlandoFL100%5 Re AjoAZ100%4 Martin’s CreekNC100%1 Murphy’s Farm PowerNC100%1 CS Murphy PointNC100%1 NC Renewable PropertiesNC100%1 Washington White PostNC100%12 Black MountainAZ100%9 Gato MontesAZ100%5 Indu Solar Holdings (1) various50%7 Total net-owned Installed Capacity82 MW (1) Unconsolidated entities 16

17 Duke Energy Commercial Renewables Portfolio – Wind Wind ProjectsState% OwnedInstalled Capacity (MW) Sweetwater 1,2,3 (1) TX50%133 Sweetwater 4,5 (1) TX47%151 OcotilloTX100%59 Happy JackWY100%29 North AlleghenyPA100%70 Notrees 1ATX100%91 NoTrees 1B/1CTX100%62 Silver SageWY100%42 Campbell Hill / Three ButtesWY100%99 Kit Carson / The BurlingtonCO100%51 ShirleyWI100%20 Top of the WorldWY100%200 Cimarron / DS Cornerstone (1) KS50%66 Laurel HillPA100%69 Ironwood / DS Cornerstone (1) KS50%84 Los Vientos ITX100%200 Los Vientos IITX100%202 Total net-owned Installed Capacity1,628 MW (1) Unconsolidated entities 17

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