Items

AC Coupling

DC Coupling

Countercurrent to Power Grid

High-power charging load disturbance

affect power grid directly

Complete isolate load impact caused by

high-power charging

System Efficiency

Battery – DC/AC – AC/DC – charger

Low efficiency

Battery – DC/DC – charger

High efficiency

Charging Speed

Low charging power

180kW Super-charging

Expand Capacity

Limited by transformer capacity

DC Bus provide extra power to expand

max. charging power

Utilization of Clean Energy

AC side clean energy needs to transfer

into DC side through AC/DC converter

DC load directly consume the clean energy

On/ Off-grid

Short circuit risk on off-grid mode

Zero short circuit risk on off-grid mode