Figure 4.
The chart shows two vertical axes and one horizontal axis. The horizontal axis spans from December 2019 to August 2020 with weekly bars. The left vertical axis shows Electricity demand kilowatt hour from 0 to 10,000. The right vertical axis shows Electricity demand kilowatt hour per square metre from 0 to 0.44. Each bar is divided into six components labelled Outdoor lighting, Tower crane 2, S D B 1 T C 3 T C 4 and miscellaneous, S D B 2 Office and miscellaneous, S D B 3 T C 1 and miscellaneous, and Drying room. Total weekly demand rises from about 1,500 in early January 2020 to peaks between about 7,000 and 8,000 during February to March 2020. Around April 2020, demand drops sharply to values between about 1,000 and 1,500 during the marked Covid lockdown period. From June 2020, demand increases again to about 5,000 to 8,000 by July 2020. The stacked contributions show S D B 2 Office and miscellaneous and S D B 3 T C 1 and miscellaneous as the largest portions, while Outdoor lighting, Tower crane 2, and Drying room contribute smaller amounts.Breakdown of weekly electricity demands from six submetering locations at Site B between December 2019 to August 2020