The major change is Nation Electrical Code has a new section 706 “Energy Storage System – ESS” which is the system we are installing and describing below.

Figure 1: National Electrical Code ESS section (New)

We need a lecture to let our team for (1) DC coupling system (2) AC coupling system (3) AC and DC coupling system. Then we can going into two kind ESS system:

1. Self-Contained ESS

Figure 2: Standard Alone ESS

Page 2                                     Curio Hotel             Prepared by Ren Tang/PE/LEED/CxA/626-318-8939

2. All-in-One ESS