South Africa is mulling committing to doubling the amount of electricity it will buy from a proposed multibillion-dollar hydro power plant in the Democratic Republic of Congo. Increasing the amount of electricity that South Africa will buy has become a linchpin for the companies seeking to build and operate the 11 000 MW facility. Congo in October named Chinese and Spanish groups as co-developers of the plant, which could cost as much as $18-billion including transmission lines.