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This technical factsheet by GreenCape provides energy efficiency (EE) benchmarks and interventions for the primary and tertiary treatment stages of wastewater treatment works (WWTWs) in South Africa. It aims to help municipal officials, funders, and businesses reduce electricity consumption, lower carbon footprints, and improve resilience against power outages.

This technical factsheet outlines energy efficiency and renewable energy opportunities in sludge management for South African wastewater treatment works. It highlights that sludge treatment can account for 35% of a plant's energy use and suggests optimizations in sedimentation, dewatering, and stabilization (particularly anaerobic digestion for biogas). It also details various financing mechanisms, such as grants and energy performance contracts, to help municipalities improve regulatory compliance and reduce greenhouse gas emissions.

This technical factsheet by GreenCape outlines the application of solar photovoltaic (PV) technology to reduce energy costs and carbon footprints at wastewater treatment works (WWTWs) in South Africa. It details system configurations, financial metrics, and the necessary steps for municipal implementation.

This factsheet by GreenCape provides technical and financial guidance on implementing mini-hydro and wind power technologies in South African wastewater treatment works (WWTWs) to reduce energy costs and carbon footprints.

This technical factsheet by GreenCape outlines the use of thermal hydrolysis as a method for the thermal beneficiation of wastewater treatment works (WWTW) sludge in South Africa to improve energy efficiency and reduce waste disposal costs.

This fact sheet by GreenCape describes wastewater treatment and reuse/reclamation as the process of removing contaminants from discharged water to create reclaimed water for restored use. It highlights the shift toward decentralized solutions due to the high costs and long timeframes associated with centralized systems, as well as the critical state of South Africa's wastewater treatment works (WWTWs).

This case study describes the implementation of a hybrid solar PV and battery energy storage system (BESS) at the Hartenbos wastewater treatment works (WWTW) in the Western Cape. The project aims to ensure continuous operation during loadshedding, reduce municipal peak demand, and lower reliance on diesel backup.

This Request for Proposal (RFP No. SIDAFF 01/2026), issued by the GreenCape Sector Development Agency on 24 June 2026, seeks a service provider to conduct a 7-day sampling, testing, and analysis campaign at the Vredenburg Wastewater Treatment Works (WWTW) in the Saldanha Bay Local Municipality. The data collected will inform the design of proposed upgrades to the facility. The project is part of the Sustainable Infrastructure Development and Financial Facility (SIDAFF) Programme, an initiative of the Western Cape Government supported by international donors including the Swiss State Secretariat for Economic Affairs (SECO) and Impact Fund Denmark (IFD).

This policy brief describes a research project by the Inter-American Institute for Global Change Research (IAI) and the Brazilian National Institute for Space Research (INPE) focused on nitrogen cycling in Latin America. The project aims to provide scientific evidence to support policies for sustainable nitrogen management in agriculture and wastewater treatment to prevent soil degradation, water pollution, and threats to food security.

This report chapter argues that the solution to global freshwater scarcity is not increasing supply through costly and environmentally damaging infrastructure, but radically increasing water productivity through efficiency and demand-side management across agriculture, landscaping, buildings, and industry.