Efficiency
In 2001 in urban water systems non-revenue water was estimated to be around 50 percent and the number of staff per 1,000 connections was typically over 10. All utilities suffer from overstaffing, but continue to recruit staff. In 2007, the number of staff per 1,000 connections still varied between 5 and 20, while a level of less than five is considered as typical for an efficient utility. These figures for non-revenue water seem to have improved, however, over subsequent years. In 2007 reported figures for non-revenue water varied between 10% and 55%. The figures at the lower end of the range are from very small utilities. Among the larger utilities the lowest level is achieved in Ibb with 20% and the highest in Hodeidah with 43%. The authors of the report caution that the data quality may be poor. According to the joint annual review of the water and sanitation sector for 2007, average non-revenue water was down to 28% and collection efficiency has risen to 92%. In Sana'a non-revenue water declined from about 50% in 1999 to an estimated 38% in 2007. Collection efficiency increased from 60% to 97%.
Read more about this topic: Water Supply And Sanitation In Yemen
Famous quotes containing the word efficiency:
““Never hug and kiss your children! Mother love may make your children’s infancy unhappy and prevent them from pursuing a career or getting married!” That’s total hogwash, of course. But it shows on extreme example of what state-of-the-art “scientific” parenting was supposed to be in early twentieth-century America. After all, that was the heyday of efficiency experts, time-and-motion studies, and the like.”
—Lawrence Kutner (20th century)
“Nothing comes to pass in nature, which can be set down to a flaw therein; for nature is always the same and everywhere one and the same in her efficiency and power of action; that is, nature’s laws and ordinances whereby all things come to pass and change from one form to another, are everywhere and always; so that there should be one and the same method of understanding the nature of all things whatsoever, namely, through nature’s universal laws and rules.”
—Baruch (Benedict)
“I’ll take fifty percent efficiency to get one hundred percent loyalty.”
—Samuel Goldwyn (1882–1974)