Written by: Fatima Younis
Recent data highlights the vital role played by solar energy and battery storage projects in meeting the seasonal needs of the business sector, coinciding with the rise in electricity demand during peak seasons in South Africa.
Recent reports from wine-producing farms, such as the Vergenoegd Löw estate in the Stellenbosch region, have revealed detailed insights into how energy demand varies throughout the year. Data showed that electricity consumption rises sharply during the wine harvesting season in February, where consumption doubled compared to June, posing a challenge to the electrical grid.
Ideal Timing Between Production and Demand
The harvest season, which experiences the highest rates of electricity consumption, coincides with the peak of solar energy production capacity in the region. During February, solar energy systems covered about 63 percent of the estate's total energy needs, limiting additional reliance on the public electricity grid despite a significant increase in loads.
The reliance on on-site solar power generation between January and August contributed to covering nearly half of the estate's total electricity consumption, as well as avoiding emissions estimated at about 183.17 metric tons of carbon dioxide. These steps come at a time when electricity tariffs are witnessing notable increases of nearly 9 percent, making self-generation an economically viable option.
Energy Infrastructure Expansions
On a broader scale, the Stellenbosch Municipality is moving forward with enhancing its energy infrastructure by awarding a project aimed at providing up to 41.9 megawatts of photovoltaic solar energy, in addition to 14.8 megawatt-hours of battery storage, through the independent power producers model following the tender issuance.
These projects integrate with grid investments that include supplying new transformers to enhance the efficiency of the main substation, ensuring supply stability and meeting the growing needs of commercial consumers in the region by combining power generation and storage.
