The full cost to build the much delayed Mixed-Oxide Fuel Fabrication Facility (MOX) project at the Savannah River site in South Carolina eventually could triple its original estimate, the Dept. of Energy acknowledged in a Jan. 15 project-management report. "Estimates for the capital work range from $8 billion [to] $12 billion, depending on the funding profiles," stated DOE's report. The agency also said capital expenditures so far have totaled $4 billion—the contract's original cost estimate—with construction only 50% complete, more than seven years after work first began.