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Energy Storage System Add Value on Energy

International Perspective on Energy Storage

2014. 12. 4

International Policy

1

Definition of ESS

2 Author: Junill Yoon ESS Committee Chair, KSGA/General Manager, Hyosung

BESS(Battery Energy Storage System), so-called ESS, is a system used for storing electrical energy to

secondary battery for timely use.

Concept Summary

Principle Storing electrical energy to Secondary batteries

(Li-ion, Lead-acid, NaS, etc)

Composition Role

PMS: Control PCS, BMS

PCS: Convert AC/DC, Power quality control

BMS: Control and Monitoring batteries

Battery: Store electrical energy

Life Expectancy

10 years

Efficiency More than 85%

Benefits

Reserving Power electricity

Frequency Regulation

Improving Power quality

Supporting Renewables

Supporting Users for efficient power usage

Voltage control

T&D investment Deferral

Construction Period

Less than 1 year

Applications of ESS

3

ESS is applicable to entire power system area starting from generation to end user and has multiple

benefits such as improving & stabilizing power quality, supporting renewables and off-grids.

Improving Generation efficiency

– Load leveling: Aiding generators by smoothing load fluctuation

– Peak Shaving: Decentering peak load

– Spinning reserve: Supplying seconds-scale reserve

– Frequency Regulation: Improving power quality

A Generation

Ancillary services

– T&D Deferral: Defer additional investments by reduce load

– Voltage Support: Responding sharp drop of voltage in a grid

B T&D

Controlling Renewable output

–Output smoothing: Smoothing irregular output power

– Constant power control: Controlling peak generation

C Renewables

Supporting Effective Power usage

– Time of Use response: Charge at off-peak, discharge at on-peak

– Power Quality & Reliability: Prevent blackout & voltage drop

– Energy Management: Power usage management and UPS

D End User

Supply power to the grid insufficient area through renewables integration –Power storing: Store produced electricity through renewable energy in the areas of power does not reach such as island and desert

E Off-grid

Author: Junill Yoon ESS Committee Chair, KSGA/General Manager, Hyosung

Environment of Korea

4

88GW of Power Plants are operating isolated. Semi conductors, Chemicals, Shipbuilding, Steel

industries are strong. Korea has 494 islands occupied within 3,736 islands

Korea, North

China

Russia

Korea, South

Dokdo

* Map from DOE Global Energy Storage Database

Japan Jejudo

<Key Statistics>

•Area: 100,210km2

•Population: 50 million

• # of Islands: 3,736

• Island occupied: 494

• Installed Capacity: 88GW

•Peak Demand: 76GW

•Nuclear: 20GW

•Coal: 25GW

• LNG: 27GW

•Renewable: 5.6GW

•PHES: 4.7GW

• Frequency: 60±0.2 Hz

•Voltage: 220V-380V-6.6kV-

22.9kV-154kV-345kV-765kV

as of Apr 2014


http://en.wikipedia.org/wiki/File:Flag_of_the_People's_Republic_of_China.svg

http://en.wikipedia.org/wiki/File:Flag_of_North_Korea.svg

http://en.wikipedia.org/wiki/File:Flag_of_Russia.svg

http://en.wikipedia.org/wiki/File:Flag_of_Japan.svg

http://en.wikipedia.org/wiki/File:Flag_of_South_Korea.svg

Governmental Drive

5

Ms. Park’s government support ESS deployment in many ways. Subsidy program, R&D support, and

Regulatory Reformation for electricity market and grid.

Remarks by President Park Geun-hye

“We will try new ways to

site incineration plants and

landfills, which local

communities tend to reject.

Those communities will

receive real benefits in the

form of clean technology-

based energy - energy that

will come from biomass co-

generation plants or

Energy Storage

Systems.”


http://www.google.co.kr/url?sa=i&rct=j&q=&esrc=s&source=images&cd=&cad=rja&uact=8&docid=qMNRKpRUrtTCaM&tbnid=plOF8rrWiFcQIM:&ved=0CAUQjRw&url=http://www.korea.net/NewsFocus/Policies/view?articleId=117262&ei=9v1xU6vyKcL68QXch4CwAQ&bvm=bv.66330100,d.dGc&psig=AFQjCNGLtibsq_WGIcT_S0HP2B4o6SQ3Jg&ust=1400065850556249

Introduction of KSGA

6

The Korea Smart Grid Association(KSGA) was established on May 21st, 2009 for the purpose of

developing Smart Grid.

ESS Committee

The Korea Smart Grid Association(KSGA) was established

for the purpose of developing Smart Grid

Date of establishment : May 21st, 2009

Number of Member Companies : 152 companies(2014)

KSGA

KSGA operate Smart Grid Committee. And ESS Committee

is affiliated with the Smart Grid committee

Organizations operating: May, 2012 ~

Standardization project

Projects for the establishment on Smart Grid infra

Research and analysis on Smart Grid

Role as a mediator between the government and private-sector stakeholders

Smart Grid Expert Training Program

Business Registration

1

2

3

4

5

6

Smart Grid Committee

Advisory Committee

EVCI Infra AMI Micro Grid

ESS Security xEMS

council

ESS Standards development

- ES-PCS(SGSF-04-2012-07) - 10kW↓ ESS(SGSF-04-2013-02) - 10~150kW ESS(SGSF-04-2013-03)

- 150kWA↑ ESS(SGSF-045-1-3)

Role as a mediator between the government and private-sector stakeholders(ESS) - Support to enact Governmental ESS Policies.


Policies of Korea

7

Korean Government has a lot of interest for the ESS and enacted many ESS related policies.

MOTIE (Ministry Of

Trade, Industry & Energy)

January 2014 『2nd Energy Master Plan』

『The sixth Electricity

Supply Plan (2013~2027)』

『K-ESS 2020』

ESS related policies in Korea

Policy name Announcement

Time Main Content

Korean Government starts to focus on

changing their energy policies from

supply-side to demand-side management.

For this reason, Korean ESS market will

be expanded.

February 2013

May 2011

Target accumulated capacity of ESS is 500MW

in 2015

Target accumulated capacity of ESS is 2,000MW

in 2020

Korean Government set the goal to occupy

30% of the world market and makes on effort to

achieve Global Top3 ESS leading country by

2020

Supply 1,700MW ESS by 2020

Government department

May 2014

『Creative Korea

Flagship Project』

Korean Government will support

demonstration of 3 types(FR/RI/DR)

of ESS Business.

MSIP (Ministry of Science,

ICT & Future Planning)

Energy Storage System policies


Major ESS Projects in Korea

8

Demonstration, R&D programs, smart grid promotion programs are major business opportunities in

Korea. Nowadays KEPCO and large power users lead the ESS market.

Projects Period Contents

Jeju smart grid Demonstration ‘09~’11 Smart Renewable, Smart Place, Smart Transporation with ESS, AMI, EVCI, etc

Daegu PV connected ESS for 100 household

‘10~’14 PV connected ESS for Household

Chochun S/S Renewable Integration(4MW)

’11~’14 Substation level renewable integrated ESS

Industrial Energy Management ESS(1MW)

‘13~’16 Factory energy management with ESS

Frequency Regulation with ESS(8MW)

‘13~’16 Develop frequency regulation market

Projects Period Organization Contents

Smart grid Promotion

‘12~ KSGI

ESS, AMI, EMS 75% subsidy for end user 2012 \3B > 2013 \20B > 2014 \17B

Hybrid Renewable

Energy ‘13~ KEMCO

50% from KEMCO, Renewable Energy with ESS for island

KEPCO FR ‘14~ KEPCO 500MW, ~2017

Large Power User Energy

Management ’13~

Samsung SDI LG Chemical

Kiheung/Ulsan Plant Ochang/Iksan Plant

Jeju Wind Power

‘14~ SK, Hanwha, GS,

etc

Jeju province are reviewing wind power regulation 10%/min variation

Smart grid City Projects

‘15~’17 KSGI 8 Consortiums are being evaluated for EVCI, AMI, ESS, EMS

R&D Demonstration and Promotion


Multi-functional ESS for Substations

9

Hyosung supported multiple projects of power grid integration ESS for performance verification on

a variety of features and for Research on Utilization.

• Period: 2011.07~2014.06

• End-customer: KEPCO

•Description: ESS is linked with substation for

Renewables output smoothing

Active & Reactive power Controlling

Black start

• Integrator: HYOSUNG

• Rated power: 4MW (4 units of 1MW PCS, HYOSUNG)

• Energy: 8MWh (Li-ion Battery, Samsung SDI)

Jocheon Substation (4MW/8MWh)


ESS for Frequency Regulation

10

Hyosung participates in the project for study of how to adapt ESS for frequency regulation with KPX

• Period: 2013.06~2016.06

• End-customer: KPX

•Description:


• Rated power: 4MW (4 units of 1MW PCS, HYOSUNG)

• Energy: 2MWh (Li-ion Battery, SK Innovation)

Frequency regulation ESS (4MW/2MWh)


Peak Shaving and Load Leveling ESS for Electricity users(1/2)

11

Hyosung supported multiple ESS projects for electricity users to reduce electricity charge.

• Period: 2012.08~2012.12

• End-customer: KT, Korea Smart Grid Institute

•Description: ESS is installed for separate outdoor

building and linked with KEPCO’s 22.9kV Power grid

• Effect: Reduce power electricity demand charge (max

$23 mil/year) and power electricity rate charge (max

$12 mil/year) by peak reduction.


• Rated power: 250kW (HYOSUNG)

• Energy: 500kWh (Li-ion Battery, LG Chemical)

Guri Agricultural Market (250kW/500kWh)


12

Peak Shaving and Load Leveling ESS for Electricity users(2/2)

Hyosung supported multiple ESS projects for electricity users to reduce electricity charge.

• Period: 2013.08~2013.12

• End-customer: Duzon Bizon, Korea Smart Grid

Institute

•Description: ESS is installed inside the building to

reduce power electricity demand charge and power

electricity rate charge by peak reduction.


• Rated power: 500kW(2 units of 250kW PCS,

HYOSUNG)

• Energy: 1,600kWh(Li-ion Battery, Samsung SDI)

Duzon Bizon (500kW/1,600kWh)


Off Grid Solution(1/3)

13

Hyosung constructed Carbon Free Island in Gapado island, Korea

• Period: 2013.08~2014.01

• End-customer: Government of Jeju Island

•Description: Electricity supply using wind power

and ESS to over 200 residents in Gapado

island


• Rated power: 1MW (HYOSUNG)

• Energy: 1MWh (Li-ion Battery, Samsung SDI)

ES-PCS

Li Battery

Gapado Renewable & Off-grid Integration (1MW/1MWh)


14


Hyosung supplies the installation of 1.25MW/3MWh ESS solutions on Gasado by September 2014

the Republic of Korea

Jindo-gun

ES-PCS Li Battery

• Period: 2014.03~2014.09

• End-customer: KEPRI

•Description: Carbon free island using Renewables

and ESS for off-grid integration


• Rated power: 1,250kW (1 unit of 250kW and 2

units of 500kW, HYOSUNG)

• Energy: 3MWh (Li-ion Battery, Kokam)

Gasado Stand-alone micro-grid ESS (1.25MW/3MWh)


Multi-functional ESS for Substations

15

Hyosung supported multiple projects of power grid integration ESS for performance verification on

a variety of features and for Research on Utilization.

• Period: 2013.09~2014.08

• End-customer: CLP

•Description: ESS is linked with substation for

Load leveling

Peak shifting

PV power generation quality improving


• Rated power: 500kW (2 units of 250kW PCS,

HYOSUNG)

• Energy: 350kWh (Li-ion Battery, Samsung SDI)

Hong Kong CLP (CLP, 500kW/350kWh)


16


Hyosung constructed the Off-Grid system based on PV generator in Mozambique

• Period: 2013.01 ~ 2013. 12

• End-customer: FUNAE

•Description: Electricity supply using PV generator and

ESS in Mozambique - Mavago(550kW),

Mecula(400kW), Muembe(350kW) - under

contemplation of grid-connected photovoltaic system


• Rated power: 900kW (single phase 5kW x 180, SMA)

• Energy: 20MWh (2V, 2,000Ah x 5,105, SEBANG

BATTERY)

Mozambique Off-grid PV generator-ESS (900kW/20MWh)

Author: Junill Yoon Author: Junill Yoon ESS Committee Chair, KSGA/General Manager, Hyosung

17

Demand Variability

One of KEPCO’s large customer has over 250MW variability within 1GW peak. Also Wind and Solar

can make challenges against the grid operator

Demand Variability(MW)

725.00

775.00

825.00

875.00

925.00

975.00

1,025.00

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250MW

24h


18

PV Output

PV output can fluctuate 80% of its nameplate capacity.

80%

PV power plant in Korea(kW)


19

Wind Output

Wind can fluctuate 90% through 24hour/365day operation.

Wind Power Output(MW)

90%


20

Conclusion

▪ In Korea, Demonstration projects have been ongoing from 2009, and several ESS site have been

installed and operated. Commercial ESS PJT is under review by government and utilities.

▪ Technology is important for adopting ESS, but political factors, such as support program and

regulation reform and etc., is also important for driving ESS.

▪ Subsidy program, R&D support and regulation changing is conducted and under review for

driving ESS business by government in Korea.

▪ ESS is a key element for renewable energy policies of India by contributing grid stabilizing and

enhancing energy efficiency in renewable energy grid.


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