An Outlook on the Adoption of Renewable Energy Solutions at South African Beverage Manufacturers




Industry, Renewable Energy Solutions, South African Beverages, Cost-Benefit Analyses


To decarbonise industry, which accounts for half of the total energy demand, renewable and sustainable energy solutions must be embraced. Not only to meet electricity requirements but, more importantly, to substitute fossil fuels used to generate process heat. This research assesses the cost-benefits of renewable and sustainable energy solutions for the South African beverage sector, representing an estimated 3020 GWh in annual energy demand, and provides a framework for the broader adoption of these technologies. For South African beverage producers, the study concludes that investments in photovoltaic and battery energy storage systems will continue to take priority, given the favourable 17–21 % Year-1 return on capital. However, given spatial and capital constraints, the judicious planning of solar thermal energy system requirements is advocated, to address the in-situ nature of process heat generation.


Download data is not yet available.


International Energy Agency, “Net zero by 2050: A roadmap for the global energy sector,” 2021. Available:

International Renewable Energy Agency, Global energy transformation: A roadmap to 2050. 2019.

International Renewable Energy Agency, “Renewable power generation costs in 2020,” 2021. Available:

F. Rozon, C. McGregor, and M. Owen, “Long-term forecasting framework for renewable energy technologies ’ installed capacity and costs for 2050,” Energies, 2023, [Online]. Available:

W. Weiss and M. Spörk-Dür, “Solar heat world - Global market development and trends 2021,” 2022. Available:

International Energy Agency - Solar Heating and Cooling programme, “Task 45 - Subtask C - Systematic categorisation and detailed description,” 2015. (accessed Jun. 13, 2022).

United States Energy Information Administration, “International energy outlook 2016 - Industrial sector energy consumption,” 2016. Available:

Solar Payback, “Solar heat for industry - South Africa,” 2019. Available:

K. Ratshomo and R. Nembahe, “The South African energy sector report,” 2019. Available:

F. Rozon, M. Owen, and C. McGregor, “An outlook on the energy mix at South African beverage manufacturers and opportunities for greater adoption of renewable energy solutions,” 2024.

A. Poorun and J. Radmore, “Energy services market intelligence report,” 2021. Available:

Eskom, “Rooftop solar PV generation capacity estimates.” 2023. (accessed Nov. 29, 2023).

M. Mkhize and Rad, “2022 large-scale renewable energy market intelligence report,” 2022. Available:

F. Rozon, J. Koke, C. McGregor, and M. Owen, “Techno-economic analyses of solar thermal process heat integration at South African beverage producers,” Sol. Compass, 100063, 2023, doi:

T. Copeland, T. Koller, and J. Murrin, Valuation: Measuring and managing the value of companies. John Wiley & Sons, 1990.

C. Maurice, C. Thomas, and C. Smithson, Managerial economics, 4th editio. Irwin, 1992.

Global Carbon Project, “Supplemental data of global carbon budget 2021 (Version 1.0) [Data set].” 2021. Available:

J. Koke, F. Rozon, and C. McGregor, “Analyzing the techno-economic viability of different solar heating systems in South African beverage plants,” 2024.

GreenCape, “The business case for solar PV in South Africa,” 2020. Available: (accessed May 29, 2023).

World Bank, “Global photovoltaic power potential.” 2022. Available: (accessed Oct. 27, 2022).

P. Saini, M. Ghasemi, C. Arpagaus, F. Bless, S. Bertsch, and X. Zhang, “Techno-economic comparative analysis of solar thermal collectors and high-temperature heat pumps for industrial steam generation,” Energy Convers. Manag., vol. 277, no. December 2022, 2023, doi:

Eskom, “Schedule of Eskom tariffs 2020/21,” 2020.]. Available: (accessed Nov. 12, 2020).

IndexMundi, “Commodities,” 2022. (accessed Aug. 29, 2022).

B. Epp, M. Oropeza, and M. Taylor, “Cost trends of solar energy for heat in industry,” 2021. Available: (accessed Jun. 22, 2022).

M. Jesper, F. Pag, K. Vajen, and U. Jordan, “Hybrid solar thermal and heat pump systems in industry : Model based development of globally applicable design guidelines,” vol. 3, no. August 2022, 2023, doi:

International Energy Agency, “World energy outlook,” 2022. (accessed Nov. 11, 2022).




How to Cite

Rozon, F., McGregor, C., & Owen, M. (2024). An Outlook on the Adoption of Renewable Energy Solutions at South African Beverage Manufacturers. International Sustainable Energy Conference - Proceedings, 1.

Conference Proceedings Volume


Solar Thermal and Energy Efficiency for Sub-Saharan Africa‘s Industry and Commerce