1 / 23
Korean Electricity Market#7. Reference - KEPCO FR ESS
World’s Largest ESS Project for Frequency Regulation
Actual Image
Project Name KEPCO Frequency Regulation ESS
ApplicationsFast Frequency Regulation for KEPCO Main Grid using LiB Battery ESS
Capacity PCS 8MW / Battery 7.6MWh
Period ’14. 9 ~ ‘15. 6 (10 months)
Role of LG CNS
- Project Management
- EPC
- EMS
Overview
2 / 23
Korean Electricity Market#7. Reference - KEPCO FR ESS
Total 500MW ESS installation for FR in substations with GF and AGC functionalities
2014(Pilot)
2015(Fixed)
2016(Planned) Total
Capacity 52MW
(29MWh)200MW 250MW 500MW
Budget €43M €208M €283M €535M
• Pilot in the 2 Substation (345kV)
• Implementation GF & AGC
• Real connection to main grid
Project Roadmap 1st Year Project
• 3 Year Project for 500MW ESS Shortened from 4 to 3 years by successful 1st
year pilot project
• Replacing 45% of FR Resource
3 / 23
Korean Electricity Market#7. Reference - KEPCO FR ESS
As a result of 1st year pilot project, ESS proved superior performance than conventional power plant
• Better Efficiency
Battery Capacity Efficiency:
92%
Duty Cycle Efficiency:
over 98%
• Superior Response Time
Guideline of PCS Response Time: 200msec
Rated Output Delay Time(from 0 to 1MW for PCS): 15.6msec
Specified Output Delay Time by Control Algorithm: 110msec
• Overall FR Efficiency of ESS
Performance of single 500MW BESS is equivalent to 26 individual 500MW Thermal Power Plant
4 / 23
Korean Electricity Market#7. Reference - KEPCO FR ESS
KEPCO is expecting €250M of annual benefit
PowerPlant
PowerPlant
Transmission
Substation
Retailer
IndustrialCustomer
GeneralCustomer
ResidentialCustomer
…
ElectricityMarket
Distribution
: Electricity Flow
: Money Flow
[Territory of KEPCO]
5 / 23
Korean Electricity Market#7. Reference - KEPCO FR ESS
KEPCO is expecting €250M of annual benefit
PowerPlant
PowerPlant
Transmission
Substation
Retailer
IndustrialCustomer
GeneralCustomer
ResidentialCustomer
…
ElectricityMarket
Distribution
: Electricity Flow
: Money Flow
[Territory of KEPCO]
6 / 23
Korean Electricity Market#7. Reference - KEPCO FR ESS
KEPCO is expecting €250M of annual benefit
PowerPlant
PowerPlant
Transmission
Substation
Retailer
IndustrialCustomer
GeneralCustomer
ResidentialCustomer
…
ElectricityMarket
Distribution
: Electricity Flow
: Money Flow
(+) T&D Deferral(+) Grid Operation Stability
(+) Plant Efficiency/Lifetime(+) Peaking Plant Deferral
(+) Decrease of Peak Mgmt.
Effects for Grid[Territory of KEPCO]
7 / 23
Korean Electricity Market#7. Reference - KEPCO FR ESS
KEPCO is expecting €250M of annual benefit
PowerPlant
PowerPlant
Transmission
Substation
Retailer
IndustrialCustomer
GeneralCustomer
ResidentialCustomer
…
ElectricityMarket
Distribution
: Electricity Flow
: Money Flow
(+) T&D Deferral(+) Grid Operation Stability
(+) Plant Efficiency/Lifetime(+) Peaking Plant Deferral
(+) Decrease of Peak Mgmt.
Effects for Grid
(+) Decrease of Clearing Price
(+) Lower FR Purchase(+) Decrease of CON/COFF
(-) Lower SMP Revenue(+) Increase of SEP(-) Decrease of CON/COFF(+) More Payment for Fast FR(+) Capacity Payment for ESS
Effects for Market[Territory of KEPCO]
Top Related