Integrated energy management
Summary
The document details Shoprite's strategy to mitigate the impacts of load-shedding and rising electricity tariffs through a three-pronged energy efficiency approach. Using the Shoprite Constantia store in Cape Town as a primary example, the report highlights the implementation of a 440kWp grid-tied solar system, LED lighting retrofits, and solar-powered refrigerated trailers. These interventions have led to significant reductions in utility costs, diesel consumption, and electricity usage. The broader program has expanded to 19 sites, with plans to reach 25, reflecting a long-term strategy to reduce greenhouse gas emissions and enhance adaptive capacity against economic and environmental shocks.
Key insights
- Shoprite implemented a three-pronged energy efficiency strategy at its Constantia location in Cape Town, consisting of a 440kWp grid-tied rooftop PV system, LED retrofits of approximately 900 T8 tubes, and solar-powered refrigerated trailers.
- The energy interventions at the Constantia store yielded specific operational benefits: the rooftop PV system provides approximately 30% of stored energy and reduces utility energy tariffs by 30-40%; LED retrofits reduced annual electricity consumption by 230,000 to 250,000 kWh; and solar refrigerated trailers saved between 6,000 and 8,000 litres of diesel.
- Shoprite's broader energy resilience program has been scaled across 19 sites, achieving a total generation capability of 12,300 MWh per year, installing approximately 630,000 LEDs, and deploying 775 solar-fitted trailers, with plans to expand to 25 sites.
- The company's transition toward energy resilience was motivated by climate change concerns and a 100% increase in Eskom tariffs between 2007 and 2016, as well as the decreasing cost of PV technology.
Cite the original document
- APA
- Poorun, A., & Van Zyl, D. (2020). Integrated energy management. GreenCape. https://greencape.co.za/wp-content/uploads/2022/10/SHOPRITE_CASE_STUDY_FINAL_29_6_21-3.pdf
- Chicago
- Poorun, Argon, and Divan Van Zyl. Integrated energy management. GreenCape, 2020. https://greencape.co.za/wp-content/uploads/2022/10/SHOPRITE_CASE_STUDY_FINAL_29_6_21-3.pdf.
- Wikipedia
- {{cite report |last1=Poorun |first1=Argon |last2=Van Zyl |first2=Divan |title=Integrated energy management |publisher=GreenCape |date=2020 |url=https://greencape.co.za/wp-content/uploads/2022/10/SHOPRITE_CASE_STUDY_FINAL_29_6_21-3.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}
- BibTeX
- @techreport{poorun2020integrated, author = {Poorun, Argon and Van Zyl, Divan}, title = {{Integrated energy management}}, institution = {GreenCape}, year = {2020}, url = {https://greencape.co.za/wp-content/uploads/2022/10/SHOPRITE_CASE_STUDY_FINAL_29_6_21-3.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }
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