Users of
large quantities of hot water,
such as
car washes and laundries, can also benefit more from solar energy,
compared to those with small hot water needs, because the «first cost» of solar will be recovered more quickly.
But as residents of the 75
largest cities lose more time each year to traffic congestion (an average of 26 hours a year in 2001,
compared with seven hours in 1982, according to the Texas Transportation Institute) even
car - centric cities
such as Dallas have recognized the need for an alternative.