Electricity consumption patterns within cities: application of a data-driven settlement characterization method

Figures & data

Figure 1. Location map and satellite image of Johannesburg, South Africa. (Source: Google Map. Note: Not drawn to scale, for representative purpose only.)

Figure 2. Location and satellite image of Sana’a, Yemen. (Source: Google Map. Note: Not drawn to scale, for representative purpose only.)

Figure 3. Location and satellite image of Ndola, Zambia. (Source: Google Map. Note: Not drawn to scale, for representative purpose only.)

Figure 4. Samples showing different settlement types identified in three cities.

Figure 5. Clockwise from top-left: Settlement Map, Settlement Classes, Settlement Classes overlaid on VIIRS DNB image, and VIIRS DNB data for Johannesburg, South Africa.

Figure 6. From left: Settlement Map, Settlement Classes, Settlement Classes overlaid on VIIRS DNB image, and VIIRS DNB data for Sana’a, Yemen.

Figure 7. From left: Settlement Map, Settlement Classes, Settlement Classes overlaid on VIIRS DNB image, and VIIRS DNB data for Ndola, Zambia.

Table 1. Regression results between VIIRS DNB and settlement types in Ndola, Zambia.

Settlement type	Regression coefficients (± SE)	t value	p value
Class 1	1.70 (± 0.08)	21.07	<.0001
Class 2	2.61 (± 0.18)	14.14	<.0001
Class 3	3.17 (± 0.37)	8.61	<.0001
Class 4	2.74 (± 0.15)	18.38	<.0001
Class 5	0.35 (± 0.24)	1.45	.1465

Table 2. Regression results between VIIRS DNB and settlement types in Sana’a, Yemen.

Settlement type	Regression coefficients (± SE)	t value	p value
Class 1	3.60 (± 0.31)	11.79	<.0001
Class 2	1.99 (± 0.04)	44.44	<.0001
Class 3	2.89 (± 0.33)	8.62	<.0001
Class 4	3.86 (± 0.19)	19.91	<.0001
Class 5	1.77 (± 0.33)	5.41	<.0001

Table 3. Regression results between VIIRS DNB and settlement types in Johannesburg, South Africa.

Settlement type	Regression coefficients (± SE)	t value	p value
Class 1	1.54 (± 0.08)	19.47	<.0001
Class 2	2.05 (± 0.03)	70.90	<.0001
Class 3	1.50 (± 0.03)	49.51	<.0001
Class 4	5.38 (± 0.10)	51.72	<.0001
Class 5	1.75 (± 0.32)	5.45	<.0001