Environmental Management Seminar “The Storage of Electricity” Barcelona April 7, 2014 Storing electricity in batteries: The experience of Toshiba with large batteries for electricity networks Toshiaki Asano General Manager, Smart Grid Solution Center Toshiba Europe GmbH © 2014 Toshiba Corporation BSG-140158 Contents 1. Large-scale Renewable Integration Issues and Governmental Support Actions in Japan 2. SCiBTM the Latest Li-ion Battery Technologies 3. Field Applications BSG-140158 © 2014 Toshiba Corporation 2 Contents 1. Large-scale Renewable Integration Issues and Governmental Support Actions in Japan 2. SCiBTM the Latest Li-ion Battery Technologies 3. Field Applications BSG-140158 © 2014 Toshiba Corporation 3 Importance of Renewable Energy in Japan Renewable Energy: Contributes to solving global warning Reduces import dependency through energy diversification (energy security) Contributes to creating new industries and jobs However, the introduction of renewable energy systems always involves issues such as output instability, high costs, and site constraints. Reference: http://www.meti.go.jp/english/policy/energy_environment/renewable/ ref1001.html BSG-140158 © 2014 Toshiba Corporation 4 Issues for Large-scale Renewable Integration Output Instability of Renewable Generation Photovoltaic (PV) Generation Wind Turbine Generation BSG-140158 © 2014 Toshiba Corporation 5 Issues for Large-scale Renewable Integration Power Fluctuation Suppression Surplus Power Management Transmission Capacity Enhancement BSG-140158 © 2014 Toshiba Corporation 6 Governmental Support Actions 1. FY2012 Large-scale Storage Battery System Demonstration Project (by METI) Hokkaido Electric Power Co. and Sumitomo Electric Industries: 15MW-60MWh Redox Flow Battery Tohoku Electric Power Co.: 40MW-20MWh Li-ion Battery 2. Transmission Network Enhancement Demonstration Project for Wind Power Generation (by METI) 3. Development of Large Scale Energy Storage System with High-safety (by NEDO) Battery Energy Storage is a key technology for the renewable energy introduction to the grids METI: Minister of Economy, Trade and Industry BSG-140158 NEDO: New Energy and Industrial Technology Development Organization© 2014 Toshiba Corporation 7 Contents 1. Large-scale Renewable Integration Issues and Governmental Support Actions in Japan 2. SCiBTM the Latest Li-ion Battery Technologies 3. Field Applications BSG-140158 © 2014 Toshiba Corporation 8 Battery Types by Chemistry Primary Batteries Used once and disposable Secondary Batteries Rechargeable Lead-acid Nickel-metal Hydride (Ni-MH) Lithium-ion (LIB) Sodium Sulfur (NAS) Redox Flow mainly for power use mainly for energy use SCiB™ is Toshiba's rechargeable lithium-ion battery with superb features. BSG-140158 © 2014 Toshiba Corporation 9 SCiBTM Toshiba’s Lithium-ion Battery Excellent features are realized by using Lithium Titanate Oxide (LTO) in its anode Features of SCiB TM Long Life Over 10,000 chargedischarge cycles Safe Lower possibility of rupturing or ignition even under extreme conditions Battery Energy Storage System Rapid Recharging Recharges in approx. 6 minutes 20Ah SCiB TM Battery Cell 500kW PCS Flexible Configuration Low Temperature Operation High Input & Output Usable with high current High Eective Capacity Usable in extremely cold environments (-30°C) Battery Panel(24kWh) (connect up to 160panels) High amount of actual usable energy over a wide range of SOC SCiB : Rechargeable Battery Super Charge ion Battery SOC : State of Charge SCiB TM Module Larger-scaled Battery system Containerized BSG-140158 © 2014 Toshiba Corporation 10 Features of SCiBTM (Highlights) Inherent Safety A high level of safety in preventing thermal runaway is assured even if an internal short circuit is forced. Crush test results SCiBTM No rupture or ignition! Cycle Life Characteristics Exceptional long life can reduce users’ running cost long life of more than 10,000 charge-discharge cycles BSG-140158 © 2014 Toshiba Corporation 11 Features of SCiBTM (Long Life) Cycle Life Characteristics Measurement continuing Conventional Li-ion O-peak charge and on-peak discharge per day * 20 years = 7,300 cycles < 10,000 cycles. Cf. [EPRI’s Assumption] Battery Replacement Period: 5 years for Li-io BSG-140158 © 2014 Toshiba Corporation 12 Contents 1. Large-scale Renewable Integration Issues and Governmental Support Actions in Japan 2. SCiBTM the Latest Li-ion Battery Technologies 3. Field Applications BSG-140158 © 2014 Toshiba Corporation 13 Battery Energy Storage Applications Frequency Regulation (FR) Renewable Integration Peak Management Distribution Power Quality Commercial & Industrial Use EV-Charging Support Home Use BSG-140158 © 2014 Toshiba Corporation 14 Battery Energy Storage Applications Frequency Regulation Fluctuation suppression for PV output Frequency Regulation (FR) Load Shifting Renewable Peak Integration Larger-scaled for SubstationsManagement Distribution Grid Stabilization EV Charger Support Distribution Power Quality Building Use with BEMS Commercial & Industrial Use EV-Charging Support Home Use with Fuel Cell and PV Home Use BSG-140158 © 2014 Toshiba Corporation 15 Battery Energy Storage System for ACEA SpA., Italy （ACEA: Italy’s power and water supply public utility） TOSHIBA delivered a smart grid system for ACEA SpA. at Ranerie substation, Rome, Italy. Operation started on 12/31/2011 The system is capable of charging EVs with PV-generated power and suppression of PV power fluctuations using SCiBTM based battery energy storage system. EV Battery (SCiBTM) PCS BESS EV Charger Controller 10kW-45kWh BESS Transporting containerized BESS Installation at site BSG-140158 16 © 2014 Toshiba Corporation 16 System Configuration for ACEA system PV EV Charger Power line Information line %"$ BESS The result of field test is expected to contribute to the full-scale deployment of renewable energy sources and EVs in Rome. 17 BSG-140158 © 2014 Toshiba Corporation 17 Field test data from ACEA system kW 8 6 EV charging Start EV charging End PV output 4 2 0 EV Charger -2 BESS -4 -6 (+: discharge; –: charge) 10:30:00 10:40:00 10:50:00 PV stop PV restart 11:00:00 11:10:00 11:20:00 11:30:00 Using Battery Energy Storage System, - Power flow at the interconnection point can be managed. - EV charging is possible without grid enhancement. 18 BSG-140158 © 2014 Toshiba Corporation 18 Plug-In Ecosystem Project for Simon Mall, US Integrated Operation of PV, EV charging and BESS Project Started Feb 1st, 2013 75kW-42kWh SCiBTM Simon Mall @Clay Terrace, Indiana, US PV energy stored in BESS are used to EVs, without drawing on the distribution grid with Energy System Network (US), Duke Energy (US), Simon Property Group (US), and Itochu Corp (JP) BSG-140158 © 2014 Toshiba Corporation 19 Yokohama Smart City Project (YSCP) Test operation results Active Power (kW) Test Operation for PJM FR case for Balancing Demand and Supply Discharge Charge Battery SCADA Commissioned October 2012 300kW-100kWh Control Installation Battery Panel PCS Battery Energy Storage System (BESS) Basic configuration of MW-class BESS for FR YSCP: Yokohama Smart City Project BSG-140158 © 2014 Toshiba Corporation 20 Battery Energy Storage System for Peak Shifting 100kW-300kW Battery Energy Storage System at Energy Use R&D Center, The Kansai Electric Power Co., Inc. Commissioned in August 2013 for field demonstration Largest-class lithium-ion BESS for demand-side use cases in Japan Eciency, life, and safety are to be examined through the field operation For Peak-shifting operation 100 90 [kW] r e w100 o p e g r 50 a h cs 0 i D / e 50 g r a h C100 [%] 80 State of Charge 60 (SOC) 40 Discharge 7:00 20 (100kW) 0 Charge (75kW) Standby 13:00 For emergency use Evaluation period for efficiency calculation Total eciency: 87.1%(*) Appearance of the system for the peak-shifting operation in the factory test (*): Measured at the AC side, considering axially energy consumptions, during BSG-140158 the period of charge (o-peak time), standby, and discharge (peak time) © 2014 Toshiba Corporation 21 C O S Large-scale Battery Energy Storage System For Renewable Integration on Remote Islands Tanegashima Island 3000kW1161kWh Amami-oshima Island 2000kW774kWh Toshiba’s first over-megawatt battery energy storage systems commissioned March 2014 BSG-140158 © 2014 Toshiba Corporation 22 Large-scale Battery Energy Storage System Nishi-Sendai Substation, Tohoku Electric Power Co. Construction started on November 25, 2013 All construction work completed by February 2015 Planed 3-years Demonstration by March 2018 The World’s Largest Power Rating of 40MW-20MWh using SCiBTM for Frequency Regulation BSG-140158 © 2014 Toshiba Corporation 23 Concluding Remarks Large-scale Renewable Integration Widespread Deployment of Battery Energy Storage Systems Cost Reduction by Technologies Applications Development Accereration Manufacturers Users Incentives by Policy Action Governments BSG-140158 © 2014 Toshiba Corporation 24 BSG-140158 © 2014 Toshiba Corporation 25
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