The US Dept of Defense, specifically, the US Army has been privatizing the utilities (sewer, water, electricity) on all posts on the continental US and here in Hawaii. Each post, through a consultant, inventories the system to be privatized and a bid package put together for advertisement & award. The contract usually runs anywhere from 25 to 50 years. The awarding bidder is required to maintain the utility system and support build-outs, renovations, etc. at the post. If the competing bids appear to be cost prohibitive (costs more to go private than public) then it is deamed economically unfeasible and remains as a public works function. Some of the problems that we've faced are standards that may be different from privately runned companies or in the past our system infrastructure does not meet industry standards and requires $$ to bring things up to code. That's usually when bidders put in large bids to cover such costs, but it has to be noted in the bid documents.