Africa Finance Corporation (AFC) and Egypt’s Infinity Group plan to raise as much as $4-billion to double the size of a recently acquired business that’s already Africa’s biggest renewable power company. The two firms agreed to buy Lekela Power last week and are seeking between $2.5-billion and $4-billion from capital markets over the next four years, Samaila Zubairu, AFC’s chief executive officer and president, said in an interview.