Fig. 3.

Microscale analysis of electricity use in London and Buenos Aires. (A) Commercial electricity use in local London boroughs is correlated with gross commercial floor area (t-stat = 18.85; P value = 3.69 E−17; R² = 0.90). (B) Residential electricity use in London boroughs is weakly correlated with residential land area per person (t-stat = 3.34; P value = 0.0023; R² = 0.28). (C) Total electricity use in the local municipalities of Buenos Aires is correlated with building footprint area (t-stat = 27.9; P value = 3.14E−19; R² = 0.97). Data are for 2011, excluding the central area, Ciudad de Buenos Aires. (D) Annual residential electricity use per person within the local municipalities of Buenos Aires has no relation to urbanized land area per capita.