해외수출용중소형분산에너지저장장치및통합관리시스템개발에너지기술개발사업 ESS Market Trend & Korea ESS Project Case Study AES (Australian Energy Storage) 2015 KOKAM Ike Hong Vice President 2015. June 3 rd
Breaking: SCE Announces Winners Of Energy Storage Contracts Worth 250MW
No-Money-Down Energy Storage? System Provider Project Developer Financing Investment + Financing ROI + Interest Risk Management Performance + Warranty
California Market 102 University California state university UCLA UC Berkeley University of Southern California ETC 5,227 Hotel USA Hotels Hollywood Beverly Hills Oxford palace hotel ETC 348 Hospital 81 Silicon Valley El Camino Regional Medical Center of San Jose O Conner Hospital ETC Apple Cisco Systems Ebay Facebook Google ETC
Not all uses are equal Longer duration events tend toward full cycle use Long, frequent events require high cycle life Shorter duration events may be satisfied with partial cycles, (minimizing wear and tear on cycle life) Systems that perform multiple functions in parallel or in concert, tend toward high cycle life When evaluating whether and what type of storage system they should install, many customers only look at the initial cost of the system the first cost or cost per kilowatt-hour (kwh). Such thinking fails to account for other factors that impact overall system cost, known as the levelized cost of energy (LCOE), which factors in the system s useful life, operating and maintenance costs, round-trip efficiency, and residual value. Tim Hennessey, Calculating the True Cost of Energy Storage
Different Performance of Battery Technology * Source: GTM research : U.S Energy Storage Monitor 2014 Year in Review
PCS + EMS + EPC * Source: GTM research : U.S Energy Storage Monitor 2014 Year in Review
Different Load Profile & Different ROI * Source: GTM research, The Future of Solar Plus Storage In the US
ESS Market in Korea 300MW ESS Project Process of proposing the most optimized ESS Energy focused system design Power focused system design
KEPCO 500MW Frequency Regulation Project Plan to install up to 500MW by 2017 52MW 2014, 200MW 2015, 200MW - 2016 $550M Investment Saving $320M / year (Cost saving of additional transmission Infrastructure + Improve efficiency of coal-fired electrical power plant) Improve power quality Stable frequency (Unit: Million Korean Won) 3000 2500 2000 1500 1000 500 (MW) 250 200 150 100 50 0 2014 2015 2016 2017
Green Island Project 50MW~70MW (62 Islands in Korea) Renewable + ESS ESS Advanced ICT Technology
Load Profile & Sizing ESS & ROI
Battery Performance Parameters Nominal kwh The original manufacturer stated kwh storage capacity Depth-of-discharge (DOD) / C-Rate The percentage of the nominal kwh / the nominal kw(power) that is charged and discharged during active operation Cycle One complete charge and discharge at some stated depth-of-discharge Roundtrip efficiency The efficiency coefficient representing the ratio electricity discharged from the battery over the electricity charged into the battery (<100%) Useable kwh The total kwh useable during normal operation where some portion of the nominal kwh is reserved to protect against over/under voltage or to preserve cycle life Cycle-life / Calendar Life The approximate number cycles / years until the storage kwh capacity degrades below the nominal kwh. Pay attention to this because this is a moving target.
Kokam Provides Various Battery Technology to Meet Customer s Load Profile Energy Lithium-nickel-manganese-cobalt (NMC) cost Life span Safety Power Safety Advantages High energy density (130 ~ 200Wh/kg): Up to 3.4MWh of batteries can be stored in a 40ft container Competitive Price: The NMC cells have a comparative advantage in terms of price, considering it s superior performance, reliability and safety features. Performance Energy cost Life span Performance Energy Safety Power Safety Lithium titanate (LTO) Advantages High specific power: 4C-rate continuous and 8 C-rate peak charge & discharge operation High round trip efficiency (RTE): >95%. Long cycle life: >12,000 cycles @ 100% DoD, 1C charge & discharge operating conditions. Extremely Safe: A thermal runaway event is significantly less likely to occur in LTO cells. LTO cells can also be re-operated after an event of an over-discharge, unlike conventional graphite based Li-Ion cells. This feature enables the user to operate the battery cells under extreme environmental and operational conditions. Wide Range of Operation: -30 ~ 60degC. The advantages of the LTO cells: Originates from the Anode side of the battery cell. Whereas the Anode side of ordinary Li-Ion cells are made up of Graphite, the Anode side of the LTO cell is composed of LTO. cost Safety Power NMC + LFP+LTO (NANO) Advantages Life span Safety This hybrid type cell has incorporated the advantages of both NMC and LTO cells in one cell. It is suitable for extremely volatile and dynamic operational conditions. The high power, energy and safety features allow the NANO cells to be flexibly applied in various applications. Performance
Kokam High Energy / High Power 3.4MWh / 40ft Container X 8 times (8C-Rate) High Energy System Energy Power High Power System
KEPCO Frequency Regulation Project West Ansung FR Project System: 16MW/5MWh Battery Type: Kokam LTO Operation: Since 2014~ Remark: The largest project in Korea for Frequency Regulation Application. KEPCO started from 2014 with 52MW Frequency Regulation ESS, planning to invest 6,250 million won for total of 500MW ESS installation by 2017. KEPCO expects nation benefit of 3,500 million won out of this FR project.
KEPCO Frequency Regulation Project 24 hours Frequency Regulation Operation Profile Battery Roundtrip Efficiency : 96.9% (DC) PNNL Duty Cycle Efficiency: 92.4% (DC) 16MW Battery System : 4 x 40ft Container Outstanding Cycle Life Performance of LTO Battery
Kokam ESS Installation & ROI Analysis (Peak Shaving + Demand Response + UPS) 1MW/500kWh Application: Demand Response, Peak Shaving Installation site: Seoul Metro Baeseok Station 1MW/500kWh Application: Demand Response, Peak Shaving Installation site: Korea Wondang Train Station 1MW/1.5MWh Application: Demand Response, Peak Shaving, Saving Diesel Generator Installation site: Daegu Power Plant, Korea 250kW/430kWh Application: Demand Response, Peak Shaving Installation site: Korea Electric Institute 250kW/300kWh Application: Demand Response, Peak Shaving Installation site: Seoul National Park (Korea)
Peak Shaving + DR + Renewable Integration + UPS TR 1MW PCS PV Panel 1MWh Battery System
Off-Grid Island Project Gasa Island (Southern Korea) Battery system: 3.2MWh PCS: 1.25MW (1MW : Frequency & Voltage control, 250kW: Back-up Power) Wind Power: 400kW Solar: 320kW Commissioning: 2014.10 ~ Application: Renewable Enhancement, Reduce Diesel Generator Residence: 286 people, 168 house Diesel Power Capacity : 300kW Average Load: 95kW Peak Load: 173kW EMS: Automatic control 100 % Renewable Island Budget: $10M Source: KEPCO Research Institute
Gasa Island Engineering Concept What to develop Concept diagram Develop engineering process Optimal combination of DG and evaluation of economic feasibility System analysis and optimal location of DG Develop EMS and operating technology Generation control, emergency control, load control, etc. Operation manual, emergency operation manual Demonstration Verify technology based on DG capacity combination Build infrastructure for commercialization through site optimization Diesel Gen. House House House [Before MG technology] EMS ESS House Wind House PV [After MG technology] Fresh water Source: KEPCO Research Institute
Gasa Island Operation Result - 1 Fuel saving results(compare to 2014 year) - Jan. : 85% (2014 year : 21,829L, 2015 year : 3,703L) - Feb. : 92% (2014 year : 21,830L, 2015 year : 1,699L) 92% Source: KEPCO Research Institute
Gasa Island Operation Result - 2 Frequency maintain ratio(0.2sec sampling) Previous(Diesel power plant) : 57% Today (MicroGrid) : 100% Source : KEPCO Research Institute
Company Overview 25 Years experience A Pioneer and Global Leader of Li-ion/Polymer Batteries and Battery Solutions World s First manufacturer of Large Li-Ion/polymer cell Exported over 150 million USD worth of battery and manufacturing technology 1 2 3 4 Successful development of the world s first high capacity lithium ion/polymer battery cell in 1998 Development and commercialization of World s first Z-folding technology on high capacity battery Kokam holds more than 150 patents on Liion/polymer battery manufacturing and facility technology in domestic and international market Kokam has exported and installed over 550MWh of battery system in over 50 countries worldwide Joint venture with world s 1 st Dow chemical Establishment of Dow-Kokam 700MWh of production line in the United States 300 full-time employees in Korea Export of approx. 60 million USD worth of battery on yearly basis Construction of a Turn-key solution manufacturing line with major Austria automotive manufacturing company, Magna Located in Canada
Electric Vehicles and Military Industry BMW F1 Formula Over 30MWh references for large vessels, submarines/ airplanes Multi-MWh Battery System The first electric submarine Aviation
Demonstration with different LIB Technology in U.S (2007~ ) 1MW/2.3MWh Application: Renewable (PV), Peak Shaving Installation site: San Diego, U.S. 1MW/1MWh Application: Renewable (PV) Installation site: Missouri, U.S 1MW/800kWh Application: Renewable (PV) Installation site: North Carolina, U.S. (25kW/50kWh) X 20 Units Application: Microgrid Installation site: Detroit, U.S
Kokam Battery Solution in Australia 85kW/ 70kWh Application: PV Integrated Installation site: Bungendore, Australia 600kW/800kWh Application: PV Integrated, Grid Support 2MW/2MWh Installation: 2016. 1Q Application: Peak Shaving Installation site: Australia 100kW/430kWh 6kW/11kWh (350units) Application: PV Integration Installation site: Australia, New Zealand
Installed over 55MWh ESS around the world
Proven Experience and Expertise Power Supplies, Automotive, Marine, Aviation, Defense, Industrial, Medical, Uninterruptable Power Supply (UPS), Energy Storage System (ESS), etc. Accumulated installation 550MWh
THANK YOU ikeh@kokam.com Ike Hong Corporate Headquarters 30-78, Gyeongsu-daero 1220beongil, Jangan-gu, Suwon-si, Gyeonggi-do South Korea 440-856 Tel +82 31 3620 100 Email battery@kokam.com