Question 1

What is the price of the basic model EFS 4.2MWh complete set?

Accepted Answer

This is customized industrial container energy storage equipment with no fixed public retail price.

Question 2

What is included in the basic package? Which items are chargeable extras?

Accepted Answer

Standard basic accessories:Immersion liquid cooling battery cabin,BMS battery management system,container frame,basic fire protection,cooling fans,local monitoring panel.
Extra payable items:PCS converter,EMS energy management system,grid-connected switch cabinet,remote operation and maintenance platform,sea-worthy packaging,on-site installation and commissioning,overseas certifications UL/CE/TUV etc.spare immersion coolant,extended warranty service.

Question 3

What are standard payment terms? Is installment available?

Accepted Answer

For overseas trade: 30percent deposit upon order confirmation, 70percent balance against copy of Bill of Lading.
For domestic projects: 20percent-30percent advance deposit, partial progress payment during production, final balance before delivery. Installment plans are negotiable for large-volume long-term framework orders.

Question 4

What is the total usable capacity of the 4.2MWh system?

Accepted Answer

Nominal energy: 4,200 kWh; Usable depth of discharge (DOD) more than 90percent, effective usable energy about3,780 kWh.

Question 5

What cooling medium is used for immersion liquid cooling? Is it safe & fire-resistant?

Accepted Answer

Adopts environmentally friendly fluorinated inert dielectric liquid, non-flammable, low volatility, excellent heat dissipation. The whole cabin comes with aerosol fire suppression as standard.

Question 6

What battery cell type is equipped in the basic version?

Accepted Answer

Standard basic model uses lithium iron phosphate (LFP) cells, long cycle life, stable safety performance. Tier 1 brand cells (CATL/E/REPT etc.) are optional upgrades.

Question 7

What temperature range can the unit operate stably in?

Accepted Answer

Operating ambient temperature: -30Celsius --+55Celsius. Immersion cooling keeps cell temperature difference less than 2Celsius all year round, far better than air cooling.

Question 8

What is the expected cycle life of the basic system?

Accepted Answer

LFP basic cell more than 6,000 full cycles under standard charge-discharge conditions; System design service life more than 15 years.

Question 9

Can it adapt to off-grid, peak shaving, solar PV energy storage scenarios?

Accepted Answer

Fully compatible. Matched PCS & EMS support grid-tied, off-grid, microgrid, solar-storage hybrid, peak-valley arbitrage, backup power and frequency regulation applications.

Question 10

How long is the production lead time for basic model orders?

Accepted Answer

Standard production cycle:30-40 working days after deposit received. Customized certification or special structure will extend lead time by 7-15 days.

Question 11

Is the container waterproof, dustproof for outdoor placement?

Accepted Answer

Cabin protection grade IP54 as standard, fully outdoor-ready, resistant to rain, dust and moderate salt fog (coastal areas can upgrade anti-corrosion coating at extra cost).

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