HomeIndustry SectorsGenerationPlans for 600 MW coal IPP in South Africa

Plans for 600 MW coal IPP in South Africa

A coal mining group, Kuyasa Mining, which owns Delmas Coal and the iKhwezi Colliery located some 20 km to the south-east of the Delmas, is through a subsidiary, KiPower, looking to establish a 600 MW power plant close to Delmas Coal. This power station will source coal from this mine as the fuel for the power plant. Associated with the power plant, would be an ash disposal facility that must also be located in close proximity to the plant.

The power plant is to consist of four 150 MW units, and it and associated infrastructure will be designed for a life of 30 years. For a 600 MW plant about 136,000 tonnes a month of ash will be generated. This translates to almost 50 million tonnes of ash over an operating life of 30 years.

KiPower may also wish to expand the power plant capacity in future up to 2,000 MW, depending on economic factors over time. Coal can be supplied from either the North
Shaft or South Shaft of the Delmas Coal Mine. North Shaft has a crusher plant and will be able to supply crushed coal to the power plant. The power plant will require 2.8 million tonnes of coal a year.

The technology proposed for this power plant is a Circulating Fluidised Bed (CFB) which has become a very efficient method of generating electricity with low emissions and environmental impacts. In a CFB combustion process, crushed coal is mixed with a sorbent such as limestone or dolomite and fired in a process resembling a boiling fluid. Fluidised bed combustion evolved from efforts to find a combustion process able to control pollutant emissions without external emission control. The technology burns fuel at temperatures of around 900 degrees Celsius

The power plant, although it will use a dry cooling system, will have a significant water requirement, of about 100 cubic meters per month. It is proposed that water for the mine and power plant come from the same source and the project is looking at finding potential sources of water and then developing such to supply a pipeline to the mine and the power plant.