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KOK Devoloping BESS Competing with Tesla 28 Apr 2018

KOK Power Limited is now developing rechargeable llithium iron phosphate BESS (Battery Energe Storage System) for home, commercial and industral use that can compete with Tesla’s Powerwall and Powerpack.


As is well known, Tesla’s Powerwall and Powerpack battery uses nickel-manganese-cobalt or NMC chemistry and can be cycled 5,000 times before warranty expiration; while KOK’s Battery Energe Storage System uses lithium iron phosphate battery--lithium iron phosphate batteries or LiFePO4 batteries are known to be the most stable and safe of the various lithium batteries; besides, LiFePO4 batteries is 2-3 times longer of cycle life than NMC batteries, which means KOK’s BESS can reach 10,000 times cycles.

The KOK’s household BESS is designed around 5KW/5KWh, intended to be used for home energy storage and stores electricity for solar self-consumption, time of use load shifting, backup power, and off-the-grid use. For families with larger energy needs, multiple househould Battery Energe Storage System can be connected to expand the capacity even higher thanks to the scalabity of KOK’s Battery Energe Storage System design.And larger capacity and high voltageBESS is intended for commercial or electric utility grid use and can be used for peak shaving, load shifting, backup power, demand response, microgrids, renewable power integration, frequency regulation, and voltage control.

For comparasion, below are the specifications of Tesla’s Powerall and Powerpack:

Powerwall specifications

Since March 2016, there was only a single model: the 6.4 kWh version for daily cycle applications,before the Powerwall 2 was introduced:

Model

Technology

Price (US$)

Capacity (kWh)

Wh per US$

US$per kWh

Power

Operating

temp.

Weight

Dimensions, H × W × D

Cycles (during warranty)

US$ per warranted kWh

Powerwall 1

Lithium-ion

US$3,000

6.4

2.13

469

7 kW peak; 5 kW continuous

−4 to 110 °F (−20 to 43 °C)

214 lb (97 kg)

51.3 in × 34 in × 7.2 in (130 cm × 86 cm × 18 cm)

5,000


Powerwall 2

Lithium-ion

US$5,500

13.5

2.46

407

7 kW peak; 5 kW continuous

−4 to 122 °F (−20 to 50 °C)

264.4 lb (119.9 kg)

44 in × 29 in × 5.5 in (112 cm × 74 cm × 14 cm)


~0.17

Powerpack specifications

Model

Technology

Capacity (kWh)

Wh per US$

US$ per kWh

Operating temp.

Weight

Dimensions, H × W × D

Powerpack 1

Lithium-ion

100

2.13

470

-

-

218.5 in × 82.2 in × 130.8 in (555 cm × 209 cm × 332 cm)

Powerpack 2

Lithium-ion

200

2.51

398

−22 to 122 °F (−30 to 50 °C)

3,575 lb (1,622 kg)

218.5 in × 82.2 in × 130.8 in (555 cm × 209 cm × 332 cm)

KOK aims to provide the customers with afforable BESS with quality and design competable with Tesla.

PLS check the E-catalog of all batteries in KOK POWER.


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