Comparison between Power System Architectures for the Commercial Buildings

In the previous five topics, I explain the Famous Power system architectures for the commercial buildings. Of course there are other types which differed from these famous ones due to one or more design factor from the following:

1. The respective supply task. 
2. The building dimensions. 
3. The number of stories above / below ground. 
4. The building use. 
5. The building equipment and power density. 
6. Number of feeder points. 
7. Type of meshing and size of the power outage reserve. 
8. Size and type of power sources. 

Today, we need to make a comprehensive comparison between these Famous Power systems architectures for the commercial buildings which included in the past five topics listed in below:

• Power system architectures for the commercial buildings – Part One

• Power system architectures for the commercial buildings – Part Two

• Power system architectures for the commercial buildings – Part Three

• Power system architectures for the commercial buildings – Part Four

• Power system architectures for the commercial buildings – Part Five 

The comparison will be as follows:

Module	Building type	Supply	Wiring /main route	Floors	Floor area	Total area	Power required
1	Low-rise building	1 supply section	Cable	≤ 4	2,500 m2	10,000 m2	1,000 – 2,000 kW
2	Low-rise building	2 supply section	Busbar	≤ 4	2,500 m2	20,000 m2	> 2,000 KW
3	High-rise building	1 supply section, central power supply	Cable	≤ 10	1,000 m2	≤ 10,000 m2	≤ 1800 kW
	High-rise building	1 supply section, central	Busbar	≤ 10	1,000 m2	≤ 10,000 m2	≤ 1800 kW
4	High-rise building	1 supply section, transformers at remote location	Cable	10 – 20	1,000 m2	≤ 20,000 m2	≥ 1,500 kW
5	High-rise building	1 supply section, distributed	Cable	> 20	1,000 m2	> 20,000 m2	≥ 2,000 kW
	High-rise building	1 supply section, distributed	Busbar	> 20	1,000 m2	> 20,000 m2	≥ 2,000 kW

And you can use the following Flow chart as a guide for good selection of appropriate power system architecture for commercial building projects.

Flow chart  for good selection of appropriate power
system architecture for commercial building projects

 

In the next topic, I will explain the electrical requirements for healthcare facilities. So, please keep following.