Search Climate Insights Directory

The document analyzes the alignment of water services by-laws in Western Cape municipalities with the 2005 Department of Water Affairs and Forestry (DWAF) model by-law. It identifies gaps in regulatory clarity, highlights specific business risks such as industrial effluent permits and water audits, and notes that municipalities with more recent updates generally provide better certainty for investors and operators.

ACA Threads transitioned from using single-use virgin polypropylene spools to a buy-back and recycling system. By partnering with an injection moulder and social organisations, the company recovered 7 tons of material from landfills over five years, saving over R460,000 and generating income for disabled persons' organisations and local community projects.

The document details how the Western Cape Industrial Symbiosis Programme (WISP) connected Enviroserv, a waste management company, with ComboTimber Structures, a pallet refurbisher. This collaboration shifted ComboTimber Structures' business model from manufacturing virgin wood pallets to using second-hand materials, resulting in 79 tonnes of wood diverted from landfills and the creation of three permanent jobs.

The document proposes a 'data and domain' approach to resilient urbanism, where measurable shared data and asset-based community participation intersect to drive inclusive public engagement. It details a methodology for community-led enumeration—collecting socio-economic and demographic data—and using that data to ground participatory co-design workshops. A case study of GreenCape's Alternative Service Delivery Unit (ASDU) in the Freedom Farm and Malawi Camp informal settlements in Cape Town demonstrates this process, resulting in the selection of a solar PV micro-utility solution tailored to the community's specific needs, affordability (maximum R150 monthly payment), and desire for portability.

This case study examines the role of electronic waste (e-waste) repair and redistribution in South Africa, focusing on The Appliance Bank as a model for integrating circular economy principles with social upliftment. It highlights how diverting e-waste from landfills through refurbishment can create jobs for unemployed men and provide affordable technology to low-income communities.

The report argues that South Africa can transition its mobility sector to zero-emission vehicles by leveraging the Atlantis Special Economic Zone (ASEZ) to attract EV assembly and component manufacturing. It highlights a strategic opportunity in public transport, noting a potential market of 350,000 minibus taxis and 65,000 buses. The document identifies high import taxes (at least 42% for EVs) as a barrier to uptake that local manufacturing at the ASEZ could overcome. It recommends targeting global OEMs like Tesla and BYD, as well as local startups like MellowVans and Green Riders, while emphasizing the need to localize the production of lithium-ion battery cells and semi-conductors to secure the value chain.

The document demonstrates that short-term power purchase agreements (PPAs) allow municipalities to integrate renewable energy quickly and cost-effectively without the rigid financial commitments of long-term contracts.

The document identifies Cape Town as a strategic hub for textile recycling due to its concentration of clothing manufacturers and retailers. It argues that transitioning from a linear to a circular textile economy can mitigate supply chain volatility and reduce landfill pressure. The brief highlights two primary opportunities: creating a commercial open-loop recycling hub to process over 70,000 tonnes of annual textile waste and establishing Africa's first commercial-scale closed-loop fibre-to-fibre recycling facility. Key barriers include a lack of textile-specific waste data, high capital requirements for advanced technology, and the complexity of processing post-consumer mixed materials. The document recommends the development of mandatory Extended Producer Responsibility (EPR) requirements and the use of the Retail-CTFL Masterplan to unite the industry under circularity targets.

The report argues that solar PV is highly suitable for packhouses because their peak energy demands for cooling and packing align with daytime solar generation. Through modelling an apple packhouse, the report finds that large-scale systems (500 kWp) are consistently profitable across various tariff and financing scenarios, while smaller systems (≤10 kWp) require favourable financing to be viable. It emphasizes that the primary value is derived from replacing expensive grid electricity rather than selling excess power back to the grid, which offers lower returns. The report also identifies regulatory hurdles, noting that feed-in tariffs are only available in specific Western Cape municipalities.

The V&A Waterfront reduced its annual water consumption from 1,370,084 kℓ in 2010 to 479,018 kℓ by 2020, representing a 65% decrease. This was achieved through a phased 'Water Resilience Journey' that prioritised low-cost interventions—such as awareness campaigns and water-efficient fittings—before moving to complex systems like greywater reuse and seawater cooling. Total investments of approximately R7 million in water-saving measures resulted in estimated cost savings of R40 million. The property also utilised 'green leases' to mandate tenant adherence to sustainability principles, with some tenants reducing consumption by 25% to 60%.

The Southern Sun Newlands hotel improved its water resilience following the 2015-2018 Cape Town drought by combining behavioral changes, water-efficiency technologies, and the installation of a groundwater treatment plant. These measures reduced water consumption by over 40% and allowed the hotel to operate entirely off the municipal water grid, meeting a maximum daily demand of 40–50kl. The hotel's efforts earned it a four-star rating from the City of Cape Town's Water Star Rating programme.

The Western Cape Industrial Symbiosis Programme (WISP) is a free service delivered by GreenCape and initiated by the Western Cape Government. It employs an industrial symbiosis approach to match unused resources—including energy, water, and materials—from one company to another to create economic and environmental benefits. The programme specifically targets gaps faced by SMEs in implementing resource and energy efficiency, aiming to reduce CO2 emissions and landfill costs while increasing profits and innovation.

The document details a synergy facilitated by the Western Cape Industrial Symbiosis Programme (WISP) between Pallet Cycle, a recycled timber manufacturer, and Cabrico, a clay brick manufacturer. In early 2020, Cabrico took 4.6 tonnes of wood waste from Pallet Cycle to use as fuel for its kiln and dryers, resulting in a reduction of 1.7 tonnes of greenhouse gas emissions and decreased reliance on fossil fuels like coal. The partnership provided economic benefits through lower fuel and material costs for Cabrico and increased storage space for Pallet Cycle.

The South African agtech sector is expanding as farmers seek to improve productivity and climate resilience, though adoption is hindered by financing gaps and farmer resistance. The agricultural drone market, valued at approximately R1 billion in 2024, is forecast to exceed R3 billion by 2030, with high viability in field monitoring and precision spraying. Emerging opportunities include digital twin technology, which uses drone data to create virtual farm replicas for predictive modeling.

The document argues that Black Soldier Fly (BSF) agriculture can transform organic waste liabilities into economic opportunities by producing high-value protein meal, oil, and frass. It highlights Cape Town as a global leader in BSF innovation and identifies key opportunities in waste management, livestock and pet food, and soil security to future-proof food supply chains against climate instability and geopolitical tensions.

The document identifies Cape Town as a potential medicinal cannabis hub, leveraging its existing pharmaceutical infrastructure and medical tourism status. It outlines opportunities across the value chain, from cultivation to agro-technology services, while noting significant barriers such as electricity instability (load shedding), financing difficulties due to licensing requirements, and a reliance on volatile international export markets.

The document argues that the circular economy is a strategic tool for businesses to navigate a 'decade of polycrisis' characterized by supply chain uncertainty and material insecurity. It focuses specifically on the City of Cape Town, noting that the city is expected to run out of landfill space by 2035 and currently has the highest landfill gate fees among South African metros. The guide introduces a 7-step process for CEOs to transition from linear to circular models, ranging from mapping resource flows to influencing supply chains. It details '9R' strategies—such as refuse, rethink, reduce, reuse, repair, refurbish, remanufacture, repurpose, and recycle—supported by local examples like Zerocrete and Barloworld Equipment. Additionally, it outlines regulatory pressures, including mandatory Extended Producer Responsibility (EPR) for sectors like packaging and electronics, and a provincial target for 100% organic waste diversion from landfills in the Western Cape by 2027.

The City of Cape Town (CCT) is developing a permanent 70 Mℓ/day seawater desalination plant at Paarden Eiland to enhance water supply resilience. Currently in the feasibility design phase, the project is part of the New Water Programme (NWP), which aims to add 300 million litres of water per day from diversified sources. The plant will utilize a multi-barrier process including reverse osmosis and advanced oxidation. Procurement opportunities for technologies, construction, and consumables are expected to reach the market in 2027, with the project estimated to create 30 direct jobs and 100-150 indirect construction jobs.

The document outlines how anaerobic digestion (AD) in South African wastewater treatment works can be leveraged via combined heat and power (CHP) systems to produce electricity and heat, reducing municipal energy costs and greenhouse gas emissions. It provides technical benchmarks, such as an average electrical yield of 70kWh per tonne of sludge, and financial estimates, noting that retrofitting existing AD systems with CHP can have a payback period of 5-15 years and an IRR of 18-30%. The factsheet identifies that projects are generally financially feasible for WWTWs with an inflow capacity exceeding 15 million litres per day.

The white paper proposes using cleantech clusters—groups of co-located firms and institutions—to overcome the slow adoption of climate solutions in developing countries. It advocates for the creation of independent, non-profit cluster agencies to coordinate ecosystems, attract investment, and create jobs, citing the success of organizations like GreenCape and Clean in South Africa, Denmark, Brazil, and Colombia.