Battery Energy Storage for Increasing Renewable Energy 2015 NGK INSULATORS, LTD. 1
NGK Corporate profile Company Name NGK INSULATORS, LTD. Date of Establishment May 5, 1919 Paid-in Capital Annual Sales Annual Operating Profit Representative Directors US 700 Million Dollar US 2,530 Million Dollar US 210 Million Dollar T. OSHIMA (President) Number of Employees Consolidated Subsidiaries 3,426 (non-consolidated) 13,159 (consolidated) 54 companies As of March 31, 2013 2
Main Products Power Business Ceramic Products Business Electronics Business Ceramic components for semiconductor manufacturing The ceramic heaters, E-Chuck etc. A ceramic catalyst carrier, is an essential component for exhaust gas purification Roller Hearth Kiln Berylium copper Microceramic actuators 3
Structure of NAS Battery NAS Battery = Sodium(Na)+Sulfur(S) Battery NAS Battery System Battery Module Battery Cell Battery Cell Fuse Sodium (Na) - + Module Case Enclosure Main Pole Heater Sulfur (S) Ceramic tube Discharge NAS Battery Principle Type :Rechargeable battery Operating Temperature: 300~340 Electrode :Sulfur(+),Sodium(-) Electrolyte : Beta Alumina Ceramics Sodium - Charge Discharge Na ion Charge Cathode Electrolyte Anode (Sodium) (β-alumina) (Sulfur) 2Na + xs Na 2 S x (Voltage: App. 2V) + Sulfur 4
EPRI Comparison* of Energy Storage Technologies * Electricity Energy Storage Technology Options: System Cost Benchmarking, IPHE Workshop on Hydrogen; Seville, Spain; 15-16 November 2012; Dan Rastler, Electric Power Research Institute 5 5
Installation Record of NAS Battery Installation Records : Over 300MW/2160MWh Site Record : Over 170 Sites Maximum Installation Site : 34MW/245MWh Installation Records Accumulative by Year, x10mw Application Type, x10mw R&D Stage (1984-2001) After Industrialization (2002-) Peak cut (Load Leveling) Emergency Power +Peak cut Stand-by Power +Peak cut Renewables 6
NAS Battery Around the World Total 450 MW/3,000 MWh Domestic 280 MW, Overseas 170MW (as of June. 2014) Germany Wind 0.8MW Germany Solar 1MW Italy Wind (35MW~) Japan 270MW Canada BC 1MW USA CA 7MW USA NM 1MW USA MN Wind 1MW UAE 48MW(+60MW) USA TX 4MW USA WV, IN, OH 7MW French Territory Solar 1MW ( ) to be constructed. Load Leveling Renewables (Wind,Solar) Ancillary & Renewables Micro Grid 7
Comparison of Battery Technologies NAS can discharge for Long Hours (6 hours). - LARGE CAPACITY NAS can configure Large Scale system (several 10 MW ) - HIGH POWER NAS expects 4500 cycles ( 15 year- 300 cycles per year ) System 100 size Li-ion [MW] (Stationary) 10 1 0.1 10 1 0.1 1x 0.01 10-2 Lead acid Redox Flow Ni-H NAS Discharge : 6 hours System Size: ~100MW (for mobile, PC) (for EV) Li- ion 1x 0.001 10-3 0 2 4 6 8 0 2 4 6 8 Discharge time [hr] Power Intensive Energy Intensive 8
Peak Cut (LL: Load Leveling) For Customer : Electricity fee saving (Factory/Office) - Reduce maximum demand - Reduce peak time use by charged power at night For Power supplier : Investment deferral by load leveling Maximum Demand Power supply (Daily load curve ) Reduce maximum demand Discharge from battery Charge to battery Example 1,000kW/7,200kWh NAS system for Sewerage treatment equipment in Tokyo Field Example - In Japan(Maximum size at one site) : 140MW / 1,000MW (12MW / 86MWh) - In USA and Canada(AEP,NYPA,BC Hydro) : 20MW / 144MWh - EDF Reunion Inland : 1MW / 7MWh 9
NAS Battery Installations in North America More than 20MW of NAS Battery Systems were installed in North America. 10
Renewable Energy Applications Shifting a firm capacity to higher demand period + Smoothing and Time shifting by NAS Time shift + : Charge : Discharge Flat Operation 11
Wind Turbine Application in Japan JAPAN WIND DEVELOPMENT CO., LTD.(JWD) started the first commercial Wind and NAS Battery Hybrid System operation since August 1st, 2008. 34 MW NAS Battery System 2MW battery unit x 17 sets - 34 units of 1.5 MW wind turbines 82 m 33.5 m Rokkashomura Futamata Wind Farm in Japan Wind turbine : 51MW NAS battery : 34MW NAS Battery PCS Building Control Building 12
Solar PV hybrid project : Wakkanai Hokkaidou 1.5MW NAS Battery at a 5 MW Solar PV Project Financed by NEDO (New Energy and Industrial Technology Development Organization) Project Size: Solar Panel: 5MW NAS Battery: 1.5MW 13
Miyakojima Island / Smart Grid - PV & Wind Firms with NAS Battery- Purpose: To demonstrate and test grid stabilization devices such as the NAS battery when PV & Wind generators are connected to the grid. PV :4MW (Area : 45,000m 2 ) Wind :4.2MW (0.9MW x 4units + 0.6MW x1 unit) Battery :NAS battery 4MW (0.5MW x 8 units) Li-Ion battery 0.2MWh (8kWh x 25 units) Existing :DG 61.5MW + Gas-turbine 15 MW Operating from Oct., 2010. PCS for NAS 4MW NAS 4MW Wind 0.9MW PV 4MW Wind 2.4MW (0.9MWx2+0.6MW) NAS 4MW 22 kv NAS: 4 MW DG 40MW Gas-t 15MW Miyakojima Island DG 21.5MW Miyakojima Isl. Wind 1.8MW(0.9MWx2) PV 3MW Wind 0.9MW 14 PV: 1MW + LIB:0.2MWh 14
70 MW( 420MWh) NAS Project for TERNA Italy 35MW ( 210MWh) are under installation in Southern Italy 12MW x 2 and 11 MW will be operated by the middle of summer, 2015 Milan Rome 15
Thanks a lots Tom Mizutani ( tom-m@ngk.co.jp ) 16