Battery Rack
System (~MWh)

Brochure

The KRS(Kokam Rack System) is comprised of Standard High Power or High Energy Type Racks. Equipped with all the superior features of Kokams Standard Racks, it can be tailored to meet all types of load requirements. Up to 30 Racks can be connected in parallel to increase the capacity of the system.

KOKAM BATTERY SYSTEM

TECHNICAL OVERVIEW OF BATTERY RACK SYSTEM

A Battery System may be composed of up to 30 Racks. 
Kokam recommends the use of a System BMS and a DC Distributional Panel with the Battery System.

  • Ultra High Power Type(2C5R) – Forced Air Cooling

    Ultra High Power Type(2C5R) – Forced Air Cooling

    Item Specification Remarks
    Model KRIS-222 KRIS-444 KRIS-666 KRIS-888 KRIS-1110 KRIS-1332
    System Configuration 2 Racks+1EA BCP 4 Racks+1EA BCP 6 Racks+1EA BCP 8 Racks+1EA BCP 10 Racks+2EA BCP 12 Racks+2EA BCP Connection in parallel
    Rack Configuration 2P20S x 10 Connection in series
    Installed Energy 222kWh 444kWh 666kWh 888kWh 1,110kWh 1,332kWh
    Nominal Voltage 740Vdc
    Operating Voltage Range 660 ~ 826Vdc
    Max. Charge Power 666kW 1,332kW 1,998kW 2,664kW 3,330kW 3,996kW @ 3P, 1 Cycle
    Rated Charge Power 222kW 444kW 666kW 888kW 1,110kW 1,332kW @ 1P
    Peak Discharge Power 1,776kW 3,552kW 5,328kW 7,104kW 8,880kW 10,656kW @ 8P, <10 sec, >SOC 50%
    Max. Discharge Power 732kW 1,465kW 2,197kW 2,930kW 3,663kW 4,395kW @ 3.3P, 1 Cycle
    Rated Discharge Power 222kW 444kW 666kW 888kW 1,110kW 1,332kW @ 1P

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

    Specification

    • Model KRIS-222
    • System Configuration 2Racks+1EA BCP
    • Rack Configuration 2P20S x 10
    • Installed Energy 222kWh
    • Nominal Voltage 740Vdc
    • Operating Voltage Range 660 ~ 826Vdc
    • Max. Charge Power 666kW
    • Rated Charge Power 222kW
    • Peak Discharge Power 1,776kW
    • Max. Discharge Power 732kW
    • Rated Discharge Power 222kW

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

    Ultra High Power Type(3C4R) – Forced Air Cooling

    Ultra High Power Type(3C4R) – Forced Air Cooling

    Item Specification Remarks
    Model KRIS-266 KRIS-532 KRIS-799 KRIS-1065 KRIS-1332 KRIS-1598
    System Configuration 2Racks+1EA BCP 4Racks+1EA BCP 6Racks+1EA BCP 8Racks+1EA BCP 10Racks+2EA BCP 12Racks+2EA BCP Connection in parallel
    Rack Configuration 2P20S x 12 Connection in series
    Installed Energy 266kWh 532kWh 799kWh 1,065kWh 1,332kWh 1,598kWh
    Nominal Voltage 888Vdc
    Operating Voltage Range 792 ~ 991Vdc
    Max. Charge Power 799kW 1,598kW 2,397kW 3,196kW 3,996kW 4,795kW @ 3P, 1 Cycle
    Rated Charge Power 266kW 532kW 799kW 1,065kW 1,332kW 1,598kW @ 1P
    Peak Discharge Power 2,131kW 4,262kW 6,393kW 8,524kW 10,656kW 12,787kW @ 8P, <10 sec, >SOC 50%
    Max. Discharge Power 879kW 1,758kW 2,637kW 3,516kW 4,395kW 5,274kW @ 3.3P, 1 Cycle
    Rated Discharge Power 266kW 532kW 799kW 1,065kW 1,332kW 1,598kW @ 1P

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

    Specification

    • Model KRIS-266
    • System Configuration 2Racks+1EA BCP
    • Rack Configuration 2P20S x 12
    • Installed Energy 266kWh
    • Nominal Voltage 888Vdc
    • Operating Voltage Range 792 ~ 991Vdc
    • Max. Charge Power 799kW
    • Rated Charge Power 266kW
    • Peak Discharge Power 2,131kW
    • Max. Discharge Power 879kW
    • Rated Discharge Power 266kW

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

  • High Power Type(2C5R) – Forced Air Cooling

    High Power Type(2C5R) – Forced Air Cooling

    Item Specification Remarks
    Model KRIS-250 KRIS-500 KRIS-750 KRIS-1000 KRIS-1251 KRIS-1501
    System Configuration 2 Racks+1EA BCP 4 Racks+1EA BCP 6 Racks+1EA BCP 8 Racks+1EA BCP 10 Racks+2EA BCP 12 Racks+2EA BCP Connection in parallel
    Rack Configuration 2P20S x 10 Connection in series
    Installed Energy 250kWh 500kWh 750kWh 1,000kWh 1,251kWh 1,510kWh
    Nominal Voltage 736Vdc
    Operating Voltage Range 660 ~ 826Vdc
    Max. Charge Power 725kW 1,451kW 2,177kW 2,902kW 3,628kW 4,354kW @ 2.9P, 1 Cycle
    Rated Charge Power 250kW 500kW 750kW 1,000kW 1,251kW 1,501kW @ 1P
    Peak Discharge Power 1,501kW 3,002kW 4,504kW 6,005kW 7,507kW 9,008kW @ 6P, ≤10 sec, ≥SOC 50%
    Max. Discharge Power 725kW 1,451kW 2,177kW 2,902kW 3,628kW 4,354kW @ 2.9P, 1 Cycle
    Rated Discharge Power 250kW 500kW 750kW 1,000kW 1,251kW 1,501kW @ 1P

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

    Specification

    • Model KRIS-250
    • System Configuration 2 Racks+1EA BCP
    • Rack Configuration 2P20S x 10
    • Installed Energy 250kWh
    • Nominal Voltage 736Vdc
    • Operating Voltage Range 660 ~ 826Vdc
    • Max. Charge Power 725kW
    • Rated Charge Power 250kW
    • Peak Discharge Power 1,501kW
    • Max. Discharge Power 725kW
    • Rated Discharge Power 250kW

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

    High Power Type(3C4R) – Forced Air Cooling

    High Power Type(3C4R) – Forced Air Cooling

    Item Specification Remarks
    Model KRIS-300 KRIS-600 KRIS-900 KRIS-1201 KRIS-1501 KRIS-1801
    System Configuration 2 Racks+1EA BCP 4 Racks+1EA BCP 6 Racks+1EA BCP 8 Racks+1EA BCP 10 Racks+2EA BCP 12 Racks+2EA BCP Connection in parallel
    Rack Configuration 2P20S x 12 Connection in series
    Installed Energy 300kWh 600kWh 900kWh 1,201kWh 1,501kWh 1,801kWh
    Nominal Voltage 888Vdc
    Operating Voltage Range 792 ~ 991Vdc
    Max. Charge Power 870kW 1,741kW 2,612kW 3,483kW 4,354kW 5,225kW @ 2.9P, 1 Cycle
    Rated Charge Power 300kW 600kW 900kW 1,201kW 1,501kW 1,801kW @ 1P
    Peak Discharge Power 1,801kW 3,603kW 5,405kW 7,206kW 9,008kW 10,810kW @ 6P, ≤10 sec, ≥SOC 50%
    Max. Discharge Power 870kW 1,741kW 2,612kW 3,483kW 4,354kW 5,225kW @ 2.9P, 1 Cycle
    Rated Discharge Power 300kW 600kW 900kW 1,201kW 1,501kW 1,801kW @ 1P

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

    Specification

    • Model KRIS-300
    • System Configuration 2 Racks+1EA BCP
    • Rack Configuration 2P20S x 12
    • Installed Energy 300kWh
    • Nominal Voltage 888Vdc
    • Operating Voltage Range 792 ~ 991Vdc
    • Max. Charge Power 870kW
    • Rated Charge Power 300kW
    • Peak Discharge Power 1,801kW
    • Max. Discharge Power 870kW
    • Rated Discharge Power 300kW

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

  • High Energy Type(2C5R) – Natural Air Cooling

    High Energy Type(2C5R) – Natural Air Cooling

    Item Specification Remarks
    Model KRIS-303 KRIS-606 KRIS-909 KRIS-1212 KRIS-1516 KRIS-1819
    System Configuration 2 Racks+1EA BCP 4 Racks+1EA BCP 6 Racks+1EA BCP 8 Racks+1EA BCP 10 Racks+1EA BCP 12 Racks+1EA BCP Connection in parallel
    Rack Configuration 2P20S x 10 Connection in series
    Installed Energy 303kWh 606kWh 909kWh 1,212kWh 1,516kWh 1,819kWh
    Nominal Voltage 736Vdc
    Operating Voltage Range 660 ~ 826Vdc
    Max. Charge Power 303kW 606kW 909kW 1,212kW 1,516kW 1,819kW @ 1P, 1 Cycle
    Rated Charge Power 151kW 303kW 454kW 606kW 758kW 909kW @ 0.5P
    Peak Discharge Power 606kW 1,212kW 1,819kW 2,425kW 3,032kW 3,638kW @ 2P, <10 sec, >SOC 50%
    Max. Discharge Power 303kW 606kW 909kW 1,212kW 1,516kW 1,819kW @ 1P, 1 Cycle
    Rated Discharge Power 151kW 303kW 454kW 606kW 758kW 909kW @ 0.5P

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

    Specification

    • Model KRIS-303
    • System Configuration 2 Racks+1EA BCP
    • Rack Configuration 2P20S x 10
    • Installed Energy 303kWh
    • Nominal Voltage 736Vdc
    • Operating Voltage Range 660 ~ 826Vdc
    • Max. Charge Power 303kW
    • Rated Charge Power 151kW
    • Peak Discharge Power 606kW
    • Max. Discharge Power 303kW
    • Rated Discharge Power 151kW

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

    High Energy Type(3C4R) – Natural Air Cooling

    High Energy Type(3C4R) – Natural Air Cooling

    Item Specification Remarks
    Model KRIS-363 KRIS-727 KRIS-1091 KRIS-1455 KRIS-1819 KRIS-2183
    System Configuration 2 Racks+1EA BCP 4 Racks+1EA BCP 6 Racks+1EA BCP 8 Racks+1EA BCP 10 Racks+1EA BCP 12 Racks+1EA BCP Connection in parallel
    Rack Configuration 2P20S x 10 Connection in series
    Installed Energy 363kWh 727kWh 1,091kWh 1,455kWh 1,819kWh 2,183kWh
    Nominal Voltage 736Vdc
    Operating Voltage Range 660 ~ 826Vdc
    Max. Charge Power 363kW 727kW 1,091kW 1,455kW 1,819kW 2,183kW @ 1P, 1 Cycle
    Rated Charge Power 181kW 363kW 545kW 727kW 909kW 1,091kW @ 0.5P
    Peak Discharge Power 727kW 1,455kW 2,183kW 2,911kW 3,638kW 4,366kW @ 2P, <10 sec, >SOC 50%
    Max. Discharge Power 363kW 727kW 1,091kW 1,455kW 1,819kW 2,183kW @ 1P, 1 Cycle
    Rated Discharge Power 181kW 363kW 545kW 727kW 909kW 1,091kW @ 0.5P

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

    Specification

    • Model KRIS-363
    • System Configuration 2 Racks+1EA BCP
    • Rack Configuration 2P20S x 10
    • Installed Energy 363kWh
    • Nominal Voltage 736Vdc
    • Operating Voltage Range 660 ~ 826Vdc
    • Max. Charge Power 363kW
    • Rated Charge Power 181kW
    • Peak Discharge Power 727kW
    • Max. Discharge Power 363kW
    • Rated Discharge Power 181kW

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

  • High Energy Type(2C5R) – Forced Air Cooling

    High Energy Type(2C5R) – Forced Air Cooling

    Item Specification Remarks
    Model KRIS-303 KRIS-606 KRIS-909 KRIS-1212 KRIS-1516 KRIS-1819
    System Configuration 2 Racks+1EA BCP 4 Racks+1EA BCP 6 Racks+1EA BCP 8 Racks+1EA BCP 10 Racks+2EA BCP 12 Racks+2EA BCP Connection in parallel
    Rack Configuration 2P20S x 10 Connection in series
    Installed Energy 303kWh 606kWh 909kWh 1,212kWh 1,516kWh 1,819kWh
    Nominal Voltage 736Vdc
    Operating Voltage Range 670 ~ 826Vdc
    Max. Charge Power 303kW 606kW 909kW 1,212kW 1,516kW 1,819kW @ 1P, 1 Cycle
    Rated Charge Power 151kW 303kW 454kW 606kW 758kW 909kW @ 0.5P
    Peak Discharge Power 909kW 1,819kW 2,729kW 3,638kW 4,548kW 5,458kW @ 3P, <10 sec, >SOC 50%
    Max. Discharge Power 606kW 1,212kW 1,819kW 2,425kW 3,032kW 3,638kW @ 2P, 1 Cycle
    Rated Discharge Power 151kW 303kW 454kW 606kW 758kW 909kW @ 0.5P

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

    Specification

    • Model KRIS-303
    • System Configuration 2 Racks+1EA BCP
    • Rack Configuration 2P20S x 10
    • Installed Energy 303kWh
    • Nominal Voltage 736Vdc
    • Operating Voltage Range 670 ~ 826Vdc
    • Max. Charge Power 303kW
    • Rated Charge Power 151kW
    • Peak Discharge Power 909kW
    • Max. Discharge Power 606kW
    • Rated Discharge Power 151kW

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

    High Energy Type(3C4R) – Forced Air Cooling

    High Energy Type(3C4R) – Forced Air Cooling

    Item Specification Remarks
    Model KRIS-363 KRIS-727 KRIS-1091 KRIS-1455 KRIS-1819 KRIS-2183
    System Configuration 2 Racks+1EA BCP 4 Racks+1EA BCP 6 Racks+1EA BCP 8 Racks+1EA BCP 10 Racks+2EA BCP 12 Racks+2EA BCP Connection in parallel
    Rack Configuration 2P20S x 12 Connection in series
    Installed Energy 363kWh 727kWh 1,091kWh 1,455kWh 1,819kWh 2,183kWh
    Nominal Voltage 888Vdc
    Operating Voltage Range 804 ~ 991Vdc
    Max. Charge Power 363kW 727kW 1,091kW 1,455kW 1,819kW 2,183kW @ 1P, 1 Cycle
    Rated Charge Power 181kW 363kW 545kW 727kW 909kW 1,091kW @ 0.5P
    Peak Discharge Power 1,091kW 2,183kW 3,274kW 4,366kW 5,458kW 6,549kW @ 3P, <10 sec, >SOC 50%
    Max. Discharge Power 727kW 1,455kW 2,183kW 2,911kW 3,638kW 4,366kW @ 2P, 1 Cycle
    Rated Discharge Power 181kW 363kW 545kW 727kW 909kW 1,091kW @ 0.5P

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

    Specification

    • Model KRIS-363
    • System Configuration 2 Racks+1EA BCP
    • Rack Configuration 2P20S x 12
    • Installed Energy 363kWh
    • Nominal Voltage 888Vdc
    • Operating Voltage Range 804 ~ 991Vdc
    • Max. Charge Power 363kW
    • Rated Charge Power 181kW
    • Peak Discharge Power 1,091kW
    • Max. Discharge Power 727kW
    • Rated Discharge Power 181kW

    *Kokam makes no warranty explicit or implied with these specifications. The contents are subjected to change without prior notice.
    *The quantity of racks connected in parallel may change depending on the customer’s requirement

ADVANTAGES

MEETING DIVERSE APPLICATIONS
The KRS(Kokam Rack System) has been widely installed in utilities, factories, office buildings, hospitals, and data centers for load leveling, peak shaving, black start, and frequency regulation purposes. The small footprint, flexible design, and compatibility with various PCS (Power Conversion Systems) provide numerous customer benefits.
COMPACT SIZE WITH COST EFFECTIVE SYSTEM
The KRS(Kokam Rack System) is composed of Kokam’s Racks and can be customized into 111kWh to MWh scale systems to meet customer requirements. These systems can be installed in various locations such as offices, hospitals, utilities, telecom towers, data centers and defense bases. By replacing conventional lead acid batteries, Kokams Rack systems can deliver economical value while minimizing operational risks for multiple users.
HIGHLY RELIABLE AND SAFE
The KRS(Kokam Rack System) has advanced safety features. They are equipped with multiple layers of protective features providing high confidence and safety. These include fuses, contactors, circuit breakers, and Kokam’s unique BMS, which provides over current, over/under voltage, over/under temperature protection.

Energy Storage System

  • BCP
    (Battery Control Panel)
  • DC Distributional
    Panel
  • Rack
  • Module
  • LED Lamp
  • Protection Door
  • Rack Switch
  • String BMS,
    Module BMS
  • On / Off
    Control Switch
HIGHLY OPTIMAL FOR VARIOUS APPLICATIONS
Kokam’s Rack System can be configured up to 30 racks and provided customized system to meet capacity required from customer. With flexible design, they are applied from commercial buildings to public facilities such as telecom tower, utilities and being used in various applications today.
KEY STRENGTHS
  • Flexibility and Modularity
  • Proven safety and reliability
  • Cost-effective Application
  • Customer-centered design
APPLICATIONS
  • - Frequency regulation and Spinning Reserve
  • - Energy Storage System for EV charging Stations
  • - Improving the power quality and reliability of renewable energy
  • - Peak Load Management

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