Eskom’s coal recovery plan addresses imbalance in coal stock levels
25 April 2018
The challenge of coal stock levels below the required target of 20 days at seven of our power stations is not ideal, more especially as Eskom prepares for the traditionally higher electricity usage period in winter. Eskom has, however, put measures in place to address the current coal shortages.
Eskom is highly cognisant of the significant impact insufficient coal supply would have on its operations and the entire country. The organisation is currently facing imbalances whereby several coal-fired power stations, particularly those in the Mpumalanga province are affected. However, it is also important to note that at this stage, the level of coal stock days in more than half of the 15 coal-fired power stations in the Eskom generation fleet is maintained above the grid code target of 20.
The prevailing situation at seven stations Arnot, Tutuka, Majuba, Hendrina, Camden, Kriel and Komati power stations, is that coal stock levels are below the required target of 20 days as stipulated in the Grid Code. Although the total current coal stock day levels of 35 days (excluding Medupi and Kusile Power Stations) are within an acceptable range it is necessary to have all stations at the required stock day levels.
A number of factors, including the historical underinvestment at cost-plus mines due to capital constraints and the undersupply on both coal quality and quantity by the Tegeta mines which are under business rescue, have negatively impacted stock levels and production. Eskom has informed Nersa of the current coal supply challenges and planned remedial actions as per regulatory requirements.