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 Mookodis 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	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%

QUESTION 1

in 4000 words discus what energy efficiency and demand side measures can be implemented and why?