EPRI Energy Storage Testing and Demonstrations. EPRI Tests and Validates Distributed Storage Systems for Grid Support

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1 EPRI Energy Storage Testing and Demonstrations EPRI Renewable Council Meeting Robert Schainker Senior Technical Executive Ben Kaun Senior Project Engineer April 5-6, 211 EPRI Tests and Validates Distributed Storage Systems for Grid Support 1 MW / 7 hr NaS.5 MW / 2 hr ZBr 1.5 MW / 1hr 5 kw / 3 hr Adv-Pb Li-ion Results: Testing and validation of current and emerging storage systems in Distributed Energy Storage (DESS) for pad mounted edge-of-grid sites Substation and PV grid support Applications Residential Systems for Enregy Mgt 2 kw / 9 kwh Li-ion Value: Information to support deployment risks and planning. EPRI leading large interest stakeholder group of utilities and OEMs advancing DESS capability. Insights into performance, operating envelope of NaS, Zn/ Br, Adv-Pb, Li-ion and emerging storage systems. Unbiased objective reporting on system performance and gird-compatibility test results 2 1

2 EPRI Knoxville Test Facility EPRI Knoxville, TN test facility was prepared for expanded DESS testing Outdoor bay and anti-islanding test feature High resolution data acquisition Environmental chambers if needed 1 MW total single size capability 3 Approach Test Plan & Protocol Developed EPRI Test Plan Elements Anti-islanding tests per IEEE 1547 (if inverter not certified) Grid compatibility tests (per UL 1741) Baseline system characterization Efficiency Capacity Duration Testing of operational features vs. vendor specifications Simulation of field use cases Testing of dual mode operation peak shaving and frequency regulation Durability and cycling tests Testing of dispatch & control and Communication functionality Illustrative Example of Planned Testing kva Inverter: Response to abnormal voltage and frequency W 25W 3W 5 35W 375W 4W W 45W 48W Time(hour) Battery: Capacity Testing not at Rated Power 4 2

3 EPRI Knoxville Test Facility: Used to Test Storage System Prototypes as well as Units for Field Deployment and Demonstration 5 kw / 83 kwh International Battery System 5 kw / 46 kwh BYD system 5 EPRI DESS Testing Plans for 211 Applications: DESS, End-User Energy Management Current DESS Tests in the Plan: 1. Greensmith (Satcon) / International Battery 5 kw / 82 kwh - 3 phase 2. Greensmith (Satcon) / Boston Power 5 kw / 5 kwh; 3 phase 3. BYD 5 kw / 46 kwh 3 phase 4. NEC 25 kw / 5 kwh 5. LG-Chem: 4 kw / 1 kwh 6. RW Beckett: 25 kw inverter and TBD battery (with FirstEnergy ) 7. International Battery 25 kva-5kwh w/transformer (with FirstEnergy) New Projects: - 1 MW / 2 MWh Li-ion Demo: Phase I Specification - FIAMM 25 kw System via a Supplemental project - 1 kw / 7 kwh Sunverge System 6 3

4 Energy Storage Grid Integration Testing & Modeling Obtain real charge/discharge data from DESS evaluation in laboratory Several DESS evaluations planned Develop OpenDSS models based on gathered experimental data Idle Discharge Charge kw, kvar Idling Losses % Eff. Charge/Discharge kwh STORED Other Key Properties % Reserve kwhrated kwhstored %Stored kwrated etc. Discharge Mode Charge Mode kw Target Discharge Time Total Fleet kw Capacity Total Fleet kwh et. al. V, I Time + Discharge rate Peak Shaving Load Following Loadshape Comm Link Substation Storage Fleet Load Shapes With and Without Storage Mode=Load Follow, Time=12:, Storage=5 kwh 3% Load Shapes With and Without Storage Mode=Load Follow, Time=12:, Storage=75 kwh 3% kw Hours Base kw Net kw kwh Stored kw Hours Base kw Net kw kwh Stored DESS Testing Timeline Other Fully Integrated Systems BYD Test Samsung, Sunverge, IB Xfrmr, etc. LG Chem. Test NEC Test D Jan Feb Mar Apr May Jun July - December Greensmith Mule Integrated Batteries IB FAT IB Test BP FAT BP Test Test Emerging Battery Candidate Systems EPRI Knoxville, TN, facility has capacity for 4-5 systems BYD, NEC, LG Chem. systems are available for long-term IB = Int l Battery International Battery and Boston Power batteries will be tested under 3 month lease BP = Boston Power FAT = Factory Acceptance Test 8 4

5 Testing of Residential Energy Storage Systems Examples:Z Sunverge 2 kw / 8.8 kwh battery system Integrated system w/communication LG-Chem 4 kw / 1 kwh Others TBD - Samsung - Toshiba - BYD 9 Xtreme Power Storage System Demonstration Testing / Validating Advanced Battery Storage at SolarTAC 1 MW / 1 MWh Xtreme Power battery sited at SolarTAC, near an Amonix CPV power system. EPRI supporting testing, monitoring and evaluation of battery system performance. EPRI preparing an in-depth cast study of findings and results. 1 5

6 Demonstration of Transportable Energy Storage Systems for Grid Support Approach: Expanded tests of Premium Power.5 MW / 2.8 MW TransFlow system EPRI to conduct rigorous factory test of TransFlow system in MW 2.8 MWh TransFlow 2 at Utility Site 11 Bulk Storage Options for Wind Integration Wind Storage Integration Project Duke Notrees DOE ARRA Project Objectives: Provide validation that energy storage increased the value and practical application of wind generation Verify storage solutions can operate within ERCOT protocols Deployment of a 25-3 MW / 5 6 MWh Battery System EPRI to support Duke and prepare case study on wind integration and participation in ERCOT market Plant concept is illustration only Supplier / vendors have not yet been selected 12 6

7 Questions & Discussion 13 7