Alternative Energy in Mining

The document analyzes the role of renewable energy in the Southern African mining sector, highlighting how energy instability and the high cost of diesel generators drive mining firms toward hybrid and private renewable solutions. While South Africa faces challenges from a reliance on coal and potential 'bridging' fuels like shale gas and nuclear power, the declining cost of solar and wind technologies, supported by the Renewable Energy Independent Power Producer Programme (REIPPPP), offers a viable path to reduce operating costs and increase energy security.

• Energy instability in Southern Africa, characterized by unreliable production and capacity shortages, has forced South Africa to implement 'load-shedding' (intermittent rolling blackouts) since 2008. In 2013, South Africa's suppressed electricity demand was 1,342 MW, and the Southern African Power Pool (SAPP) region lacked 2,131 MW of capacity.
• Mining companies in remote or grid-isolated areas often rely on expensive diesel generators, with energy accounting for 20% of grid-connected and 30% of off-grid operating costs. Integrating hybrid solutions, such as wind or solar with diesel, can reduce these energy costs by 10–20%.
• Renewable energy tariffs in South Africa are becoming competitive with coal. The third bidding window of the Renewable Energy Independent Power Producer Programme (REIPPP) saw an average wind-generated electricity tariff of ZAR 0.74/kWh, which is lower than the projected coal-generated electricity price of ZAR 0.78/kWh over the next decade.
• A case study of Cronimet Chrome SA in Limpopo demonstrates the viability of diesel-PV hybrid systems. Their 1 MW ground-mounted plant produces approximately 1.8 GWh annually, meeting 60% of the mine's daytime power needs with a break-even period of 3.6 years.
• The South African government has set a target of 21.5 GW of new installed renewable energy capacity by 2030. To date, 64 private sector projects have been awarded, representing $14 billion in committed investment and a projected 3,922 MW of renewable power.
• Despite the potential of renewables, the transition is hindered by the availability of cheap coal, interest in shale gas (with South Africa holding the fifth largest reserve globally) and nuclear power, as well as political pressure from labor unions and leftist parties.
• Four potential business models for distributed renewable energy in mining are identified: self-generation, self-generation and powering townships, net metering (selling excess capacity to the grid), and industrial pooling via long-term power purchase agreements (PPAs).

APA

South African Institute of International Affairs (n.d.). Alternative Energy in Mining. https://saiia.org.za/wp-content/uploads/2014/10/141125_EDIP_GIZreport_pg39-46_CS3.pdf

Chicago

South African Institute of International Affairs. Alternative Energy in Mining. n.d. https://saiia.org.za/wp-content/uploads/2014/10/141125_EDIP_GIZreport_pg39-46_CS3.pdf.

Wikipedia

{{cite report |author=South African Institute of International Affairs |title=Alternative Energy in Mining |url=https://saiia.org.za/wp-content/uploads/2014/10/141125_EDIP_GIZreport_pg39-46_CS3.pdf |access-date=23 October 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{southafricaninstituteofinternationalaffairsndalternative, author = {{South African Institute of International Affairs}}, title = {{Alternative Energy in Mining}}, institution = {South African Institute of International Affairs}, url = {https://saiia.org.za/wp-content/uploads/2014/10/141125_EDIP_GIZreport_pg39-46_CS3.pdf}, urldate = {2026-10-23}, note = {Indexed by Climate Insights Directory} }