The WBCSD-CSI identified energy as a key material risk to be addressed by the cement industry. This is particularly relevant to cement manufacturers in South Africa at a time when the country is facing critical electrical energy shortages and increasing electricity and coal tariffs. As the cement manufacturing process is thermally energy intensive, the impact of these issues has been felt by the ACMP members.

     

Figure 5: Electricity Usage
Figure 6: Heat Consumption in Clinker Production

Our members have reported the following energy consumption: electricity used in cement production and heat consumption in clinker production (both as reported as per WBCSD-CSI requirements).

The figures indicate a reduction in the use of electricity per tonne of cement produced and a steady decrease in heat consumption per tonne of clinker produced.

Replacing coal with secondary materials for energy in production processes assists in carbon emission reductions. Due to variances in data capture and reporting, the coal replacement percentage depicted below should not be interpreted as representative of the ACMP but as indication of substitution taking place amongst some of the members.

Table 3: Coal Substitution Rate

To ensure sound sustainable development practice amongst our members, the ACMP has embraced the following energy management policy to inform it’s members response to both energy demand and climate change.

ACMP ENERGY POLICY

The Cement industry as an energy-intensive sector recognises both the national energy constraints as well as the relationship between its own energy consumption and carbon footprint.

The members of the ACMP commit to long-term sustainability and the prosperity of all stakeholders by:

  • Continuously improving the understanding of the relationship between energy consumption operational efficiency and carbon footprint;
  • Implementing management systems that will enable ACMP members to benchmark, measure and optimise energy performance;
  • The use of alternative energy sources as key to thermal and electrical energy supply strategies;
  • This environmental policy demonstrates our member’s commitment to environmental stewardship.