Part of a larger comprehensive program decades in the making to ensure water security for the city, direct potable water reuse in Windhoek actually started back in 1968. The scheme, in an effort to update and become more efficient, received an upgrade in 2002 in the form of a new plant designed to provide a replenishing source of drinking water from wastewater. It furthermore forms part of a total re-use system in which very little water is either wasted or returned to the river system. At a cost of US$27,000,000, financed in large part by the KFW and the European Investment Bank achieved several key outcomes, the most notable being that the project makes an additional 7,500,000m3 /year of potable water available at a similar cost to other sources.