The Independent Power Producer Procurement Programme. The Department of Energy (DoE), National Treasury (NT) and the Development Bank of Southern Africa (DBSA) established the IPPPP Unit for the specific purpose of delivering on the IPP procurement objectives.
Outer core. The outer core of the Earth is a fluid layer about 2,300 km (1,400 mi)[1] thick and composed of mostly iron and nickel that lies above Earth's solid inner core and below its mantle. Its outer boundary lies 2,890 km (1,800 mi) beneath Earth's surface.
The inner core of the earth is a (rather) solid metal core made up of ni â¦ ckel and iron which has a diameter of 2440 km. The outer has a similar composition and temperature, but is under less pressure and remains in a liquid state.