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해외 수출용 중소형 분산 에너지저장장치 및 통합관리시스템 개발 에너지 기술 개발사업
KOKAM Ike Hong
Vice President 2015. June 3rd
ESS Market Trend & Korea ESS Project Case Study
AES (Australian Energy Storage) 2015
Breaking: SCE Announces Winners
Of Energy Storage Contracts
Worth 250MW
No-Money-Down Energy Storage ?
System Provider Project Developer Financing
Investment + Financing
Performance + Warranty
ROI + Interest
Risk Management
California Market
University
Hospital
348
Hotel
5,227
Silicon Valley
81
• California state university • UCLA • UC Berkeley • University of Southern California • ETC
• El Camino • Regional Medical Center of San Jose • O’Conner Hospital • ETC
• USA Hotels Hollywood • Beverly Hills • Oxford palace hotel • ETC
• Apple • Cisco Systems • Ebay • Facebook • Google • ETC
102
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
Not all uses are equal
“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
Power focused system design
Energy focused system design
ESS Market in Korea
300MW ESS Project
Process of proposing the most optimized ESS
KEPCO 500MW Frequency Regulation Project
(MW)
50
100
150
200
250
(Unit: Million Korean Won)
0
500
1000
1500
2000
2500
3000
2014 2015 2016 2017
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
ESS Advanced ICT
Technology
Green Island Project 50MW~70MW (62 Islands in Korea)
Renewable + ESS
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
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.
Advantages
Lithium-nickel-manganese-cobalt (NMC)
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.
Advantages
Lithium titanate (LTO)
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.
NMC + LFP+LTO (NANO)
Energy
Safety Advantages
Power cost
Safety
Performance
Life span
Energy
Safety
cost
Safety
Performance
Life span
Power
cost
Safety
Safety
Performance
Life span
Energy
Power
High Power System
Kokam High Energy / High Power
3.4MWh / 40ft Container X 8 times (8C-Rate)
Energy Power
High Energy System
KEPCO Frequency Regulation Project
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.
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 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
250kW/430kWh
Application: Demand Response, Peak Shaving
Installation site: Korea Electric Institute
Kokam ESS Installation & ROI Analysis (Peak Shaving + Demand Response + UPS)
250kW/300kWh Application: Demand Response, Peak Shaving
Installation site: Seoul National Park (Korea)
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/500kWh 1MW/1.5MWh
Application: Demand Response,
Peak Shaving, Saving Diesel Generator
Installation site: Daegu Power Plant , Korea
1MWh Battery System
1MW PCS TR
PV Panel
Peak Shaving + DR + Renewable Integration + UPS
Off-Grid Island Project
• EMS: Automatic control
• 100 % Renewable Island
• Budget: $10M
Residence: 286 people , 168 house
Diesel Power Capacity : 300kW
Average Load: 95kW
Peak Load: 173kW
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
Gasa Island (Southern Korea)
Source: KEPCO Research Institute
[After MG technology]
Optimal combination of DG and evaluation of economic feasibility
System analysis and optimal location of DG
Generation control, emergency control, load control, etc.
Operation manual, emergency operation manual
Verify technology based on DG capacity combination
Build infrastructure for commercialization through site optimization
[Before MG technology]
Demonstration
Develop EMS and operating technology
Develop engineering process
Wind Fresh water ESS House House PV
EMS
Diesel Gen. House House House
Gasa Island Engineering Concept
Source: KEPCO Research Institute
What to develop Concept diagram
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
“A Pioneer and Global Leader of
Li-ion/Polymer Batteries and Battery Solutions”
1 Successful development of the world’s first high
capacity lithium ion/polymer battery cell in 1998
Kokam holds more than 150 patents on Li-
ion/polymer battery manufacturing and facility
technology in domestic and international market
2 Development and commercialization of World’s first
Z-folding technology on high capacity battery
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
4 Kokam has exported and installed over 550MWh of
battery system in over 50 countries worldwide
25 Years experience
World’s First manufacturer of Large Li-Ion/polymer cell Exported over 150 million USD worth of battery
and manufacturing technology
Joint venture with world’s 1st Dow chemical
Establishment of Dow-Kokam
700MWh of production line in the United States
3
Electric Vehicles and Military Industry
Over 30MWh references for large vessels, submarines/ airplanes
BMW F1 Formula
Aviation Multi-MWh Battery System The first electric submarine
Demonstration with different LIB Technology in U.S (2007~ )
1MW/2.3MWh
Application: Renewable (PV),
Peak Shaving
Installation site: San Diego, U.S.
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
1MW/1MWh
Kokam Battery Solution in Australia
100kW/430kWh
Application: Peak Shaving
Installation site: Australia
85kW/ 70kWh
6kW/11kWh (350units) Application: PV Integration
Installation site: Australia, New Zealand
2MW/2MWh Installation: 2016. 1Q
Application: PV Integrated
Installation site: Bungendore, Australia
600kW/800kWh Application: PV Integrated, Grid Support
“ Installed over 55MWh ESS around the world”
550MWh
Power Supplies, Automotive, Marine, Aviation, Defense, Industrial, Medical, Uninterruptable Power Supply (UPS), Energy Storage System (ESS), etc.
Accumulated installation
Proven Experience and Expertise
Corporate
Headquarters
30-78, Gyeongsu-daero 1220beon-
gil, Jangan-gu, Suwon-si,
Gyeonggi-do
South Korea 440-856
Tel +82 31 3620 100
Email [email protected]
THANK YOU
Ike Hong
