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Bayside Shopping Mall in Cape Town implemented a rainwater and stormwater harvesting system consisting of six 10,000-litre tanks and two header tanks to supply non-potable water for irrigation and toilet flushing. The project required a capital investment of R 1.5 million and achieved a 93% reduction in water consumption for those specific uses, with annual savings of R 200,000 and a five-year payback period.

JG Afrika's Cape Town office reduced its water consumption by 67% between 2011 and 2017 through a phased approach of demand reduction and efficiency upgrades. Initial steps in 2012 and 2013, including reducing irrigation and installing waterless urinals, led to a 24% reduction in average annual water consumption. In response to the Western Cape drought in 2016 and 2017, the firm turned off irrigation entirely, implemented weekly consumption logging, and installed hold-flush toilets, low-flow tap aerators, and low-flow shower heads. These technical interventions were supported by staff education and awareness campaigns. To further increase resilience, the firm installed two 10,000-litre rainwater tanks. The total capital investment for these measures was R13,100, resulting in annual water savings of 727 kilolitres in 2017 and cumulative annual savings of R33,424 since 2011.

The document details an 18-month pilot by Golden Arrow Bus Services (GABS) using two BYD electric buses in Cape Town. The trial demonstrated that electric buses can handle steep local topography, such as Hospital Bend, and achieve significant energy cost savings of nearly 69% compared to diesel alternatives. To mitigate the carbon intensity of the South African grid, GABS has installed rooftop solar PV at six depots, reaching 1.7MWp by March 2023, though it estimates a need for 80 to 100MW of renewable capacity to fully electrify its 1,100-bus fleet. The study concludes that while electric buses have higher upfront costs, fuel savings allow them to pay for themselves over a 15 to 20 year lifespan.

The City of Cape Town is implementing the Faure New Water Scheme (NWS) as part of a broader New Water Programme to add 300 million litres of water per day from diversified sources by 2030. The Faure NWS will utilize a multi-barrier advanced purification process to convert treated wastewater into drinking-quality water, with a planned capacity of up to 100 ML/d. The project is expected to be commissioned by 2030 and will create approximately 70 direct jobs. The document also highlights global and regional trends in water reuse, citing successful implementations in Singapore, Australia, and other South African cities like Beaufort West and Ballito.

The document identifies significant opportunities for industrial hemp in South Africa's textiles sector, particularly in Cape Town, which is positioned to be a processing hub due to its existing apparel businesses and retail head offices. While hemp offers environmental benefits—including higher CO2 absorption and lower ecological footprints than cotton or polyester—the industry faces barriers such as inconsistent feedstock supply, high processing costs, and a lack of local mid-stream processing capacity. The brief suggests that primary producers initially target export markets to build scale before localizing the full value chain.

The document identifies industrial hemp as a sustainable alternative for construction materials in South Africa, specifically focusing on hempcrete and hemp insulation. It highlights Cape Town's potential as a hub for these materials, citing the completion of the world's tallest hemp-based building. While hemp offers significant carbon sequestration and energy efficiency benefits, the sector faces barriers including high costs due to imported components and a lack of awareness among developers and professionals.

The document examines the growth of embedded solar generation in South Africa, which reached over 3.2 GW of installed capacity in 18 months. It compares four primary procurement models: outright purchase, commercial debt, solar Power Purchase Agreements (PPAs), and embedded generation leasing. While outright purchases offer the best long-term return on investment, PPAs and leasing are increasing in popularity—accounting for 20% to 30% of new commercial and industrial projects—due to their ability to reduce upfront costs and system performance risks. The brief also details specific financial incentives, including the 12B tax allowance and feed-in tariffs, and provides a decision framework for businesses to select the most appropriate financing model based on their capital availability and risk appetite.

The document details a green finance mechanism where a solar developer finances, installs, and maintains a rooftop PV system on a commercial property. The property owner receives rental income, while the tenant purchases the generated electricity via a Power Purchase Agreement (PPA). A specific implementation for Pick n Pay in Brackenfell, Cape Town, resulted in a 22.12% reduction in the outlet's carbon footprint and created a new annual revenue stream of approximately R188,000 for the property owner.

The Climate Finance Accelerator (CFA) is a UK-funded global programme, led in South Africa by NBI and GreenCape, that provides technical, financial, and social inclusion support to low-carbon projects to improve their bankability. The programme does not provide direct funding but facilitates connections between project developers and commercial or concessional investors. Eligible projects must be at least at the pre-feasibility stage, have a financing need between USD $5m and $150m, and demonstrate measurable greenhouse gas emission reductions.

The Climate Finance Accelerator (CFA) is a UK-funded global programme designed to bridge the gap between available climate finance and promising projects by improving their bankability. In South Africa, the programme is delivered by the National Business Initiative and GreenCape, selecting 13 businesses from 120 applicants to receive capacity building in low-carbon technologies, climate mitigation, and blended finance to support the country's Nationally Determined Contributions (NDCs).

The document outlines a comprehensive set of circular economy interventions for the City of Cape Town, categorized by the principles of prioritizing regenerative resources, stretching product lifetimes, and using waste as a resource. Key initiatives include the Green Procurement Action Plan, the transition to electric vehicles, the development of repair hubs and equipment libraries, and the implementation of organic waste diversion targets.

This policy brief by GreenCape argues that building urban resilience in informal settlements requires a participatory co-design approach driven by facilitators with high emotional intelligence and specific core values. Using a case study of the Alternative Service Delivery Unit (ASDU) in Cape Town's Freedom Farm and Malawi Camp, the document demonstrates how a data-driven, four-step engagement process can lead to community-supported infrastructure, such as home-solar systems. It details the necessary human capital for project drivers, emphasizing trust, collaboration, and active facilitation as essential for overcoming systemic distrust and social vulnerability.

BG Servers, a drum reconditioning SMME in Cape Town, reduced its municipal water consumption by 97% between 2009 and 2021. By installing rainwater harvesting and borehole systems, and introducing a vacuum residue system, the company decreased annual municipal usage from 2,300 kl to under 70 kl. These interventions resulted in cumulative municipal account savings of approximately R740,000 from 2011 to 2021. The company's efforts were recognized by the City of Cape Town with a 5-star water rating certification in 2022.

The document highlights the challenges of construction and demolition waste (C&DW) management in Cape Town, where landfills are nearing capacity. It argues that while high-value materials like metals are already recycled, lower-value salvageable items are often discarded. The case study presents 'The Real Deal 2 Cheap' as a business model that fills this gap by purchasing and reselling used building materials, thereby reducing landfill pressure, creating local jobs, and providing affordable materials to the public. It also notes systemic barriers in South Africa, such as low landfill tariffs for C&DW and a lack of reliable waste data.

The document examines the deployment of container-based sanitation (CBS) in Cape Town, where the number of informal households is projected to reach almost 900,000 by 2040. It details the current use of portable flush toilets (PFTs) and shared container toilets, noting that while communities generally accept these as alternatives to full-flush systems, there are significant needs for improved durability and more reliable servicing. The brief also explores the potential for a circular economy by beneficiating excreta into products like fertilizers or fuel, highlighting regulatory shifts such as the 2019 liquid waste landfill ban and new organic waste treatment standards that may reduce barriers for local providers.

The guidelines establish standards for container-based sanitation (CBS), a system where toilets collect excreta in sealable containers for transport to treatment facilities. It defines a service chain comprising customer relations, design and operations (containment, collection, and transfer), and the commercialisation of reuse products. The document outlines 'Safe Minimum Standards' and 'Aspirational Standards' across the sanitation chain, including toilet design (in-home vs. standalone), servicing frequency (typically 2-3 times per week), container cleaning, and waste beneficiation into products like animal protein, biochar, and liquid fertiliser. It emphasizes the importance of user engagement, occupational health and safety (OHS) for workers, and the integration of CBS into broader waste management and urban planning, particularly for informal settlements where sewer infrastructure is not feasible.

The document argues that funders of Just Transition projects in Africa should move away from top-down models toward locally-led development. It identifies intermediary organisations—such as non-profits, community foundations, and trade unions—as critical bridges that help funders access local knowledge, build trust, and manage risks. The guide outlines a continuum of local engagement ranging from 'inform' to 'support' (where goals originate from the community) and provides specific recommendations for funders, including budgeting for co-design, pacing projects to match trust-building, and building the institutional capacity of intermediaries.

The document explores the application of AI in material recovery facilities (MRFs) in South Africa, specifically focusing on the solutions provided by Dragonfly. It argues that AI can augment human labour rather than replace it, particularly in developing economies where labour is cheap but efficiency is often low due to human error. Dragonfly's system uses high-resolution cameras and deep learning to classify waste, providing real-time data to optimise picker performance and conveyor speeds. In Cape Town and Stellenbosch, this technology increased material recovery by approximately 640 tonnes, reduced tailings by 22% to 30%, and led to a 10-15% wage increase for staff.

The National Pricing Strategy for Water Use Charges outlines a hybrid tariff system for South Africa, combining national and catchment-level charges. It defines six water use categories and five main charge types: Water Resources Management, Infrastructure (including O&M, Depreciation, FIBC, and Capital Use), Waste Discharge, Water Research Commission, and Economic Regulator charges. The strategy emphasizes the 'user pays' and 'polluter pays' principles while providing targeted subsidies and phased-in charges for resource-poor farmers and foresters to support racial and gender equity. Implementation began on 1 April 2016, introducing multi-year tariffs and a structured process for budget planning and price setting.

The guideline outlines a three-step process for farmers to achieve energy resilience: conducting energy audits to identify efficiencies, evaluating alternative energy technologies based on specific production needs, and navigating the financial and quality assurance aspects of implementation. It highlights the critical role of energy efficiency as a prerequisite to reducing the capital requirements of renewable systems and provides detailed comparisons of technologies such as solar PV, biogas, and battery storage, alongside various South African financing mechanisms and tax incentives.