South Africa faces a major energy crisis if it can’t add sufficient generation capacity quickly enough.

More than a decade in the making, the Redstone concentrated solar plant is the first of its kind in South Africa to support 12 hours of backup power with peak supply.

The proposed refinery would be fed by crude coming through a pipeline that would stretch from east Yuma County down to the Mexican border and then through Baja California to a seaport south of ...