Question

Context:

Mookodi Enterprise is a business consultancy with 543 employees. They are based in the north of Johannesburg on a 10Ha campus. Mookodi connects to the national grid at 11kV and pays a seasonal industrial low voltage (LV) tariff of 141.67 cents in summer and 165.94 cents in winter. Thirty percent of Mookodi’s employees are based at their clients’ offices and are not permanently based on the campus.

The campus has the following buildings:

• Canteen (Purple)
• Welcome Centre, Gym and Conference Centre (Green)
• Guardhouse (Light blue)
• Main Office Building 1 (Maroon)
• Main Office Building 2 (Dark blue)

Below is the campus’ electricity consumption over the last year:

MONTH	TOTAL KWH	ACTUAL BILL	DIFFERENCE
January	218980	220 000	0%
February	220721	242 000	-9%
March	227258	223 000	2%
April	241226	245000	-2%
May	236 821	245000	0%
June	262 960	267078	-2%
July	300 857	298 047	1 %
August	246 849	245 399	1%
September	222 451	225 476	-1%
October	208 031	209000	0%
November	215118	219 000	-2%

December

219604

215 000

2%

QUESTION 1

in 4000 words discus or Analyse the campus’ load profile

[25]

QUESTION 3

Plot an electricity consumption graph and in 5000 words analyse what this means for Mookodi

Answer 1

Data:

MONTH	TOTAL KWH	ACTUAL BILL	DIFFERENCE
January	218980	220000	0%
February	220721	242000	-9%
March	227258	223000	2%
April	241226	245000	-2%
May	236821	245000	0%
June	262960	267078	-2%
July	300857	298047	1%
August	246849	245399	1%
September	222451	225476	-1%
October	208031	209000	0%
November	215118	219000	-2%
December	219604	215000	2%

Plot:

Points:

• Blue Line : Consumption - It is highest in July and lowest in October-November meaning that the consumption of electricity is highest in Summers and Humid months and is lowest in Winders and Cooler months.
• Orange Line : Bill - It coincides with consumptions meaning that higher the consumption of electricity, higher the bill and vice versa.
• However, Bill is lower in Winters (Jan-Feb).
• Grey Line : Difference - It represents the month on month changes in consumption with respect to previous month.
• It can be seen consumption increased in Feb from Jan rapidly after consistent low consumption since October

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