“…It has a strong influence on the residential energy usage (Junk, Junk, & Jones, 1987;Lenzen et al, 2004;Morrison & Gladhart, 1976;O'Neill & Chen, 2002;Pachauri, 2004;Tonn & Eisenberg, 2007;Uitdenbogerd et al, 2007;Van Raaij & Verhallen, 1983). The results of a statistical analysis performed by Pachauri (2004) indicate that where the head of the household is in the range of 25-29 years old, the per capita energy requirement is about 7% more than where the household head is less than 25 years old.…”