Technical factsheet for pumps and motors

This technical factsheet by GreenCape provides guidance on reducing electricity consumption in pumps and motors within South African municipal wastewater treatment works (WWTWs) through energy efficiency (EE) and renewable energy (RE) interventions.

• Pumping operations can represent between 4% and 30% of the total energy required to operate a municipal water and wastewater treatment facility.
• Energy efficiency interventions for pumps vary by cost and impact: low-capital actions like adjusting valve calibration or reducing usage during low-flow periods offer up to 10% savings with a payback under one year, while capital-intensive retrofitting can yield 10% to 50% savings with a payback under three years.
• Motor energy efficiency can be improved through low-cost maintenance (e.g., lubrication and cleaning) for up to 10% savings in less than one year, or through retrofitting for 10% to 30% savings with a payback under three years.
• Municipalities can fund energy efficiency projects through several mechanisms: municipal budgets (IDP, WSDP, SDBIP), government or donor grants (such as MIG, RBIG, WSIG, Green Fund, and EEDSM), concessional loans from entities like AFD, SEFA, or DBSA, commercial bank loans, energy performance contracts via ESCos, and climate financiers.

APA

GreenCape (n.d.). Technical factsheet for pumps and motors. https://greencape.co.za/wp-content/uploads/2023/08/Factsheet-2_Pumping.pdf

Chicago

GreenCape. Technical factsheet for pumps and motors. n.d. https://greencape.co.za/wp-content/uploads/2023/08/Factsheet-2_Pumping.pdf.

Wikipedia

{{cite report |author=GreenCape |title=Technical factsheet for pumps and motors |url=https://greencape.co.za/wp-content/uploads/2023/08/Factsheet-2_Pumping.pdf |access-date=17 August 2026 |via=Climate Insights Directory}}

BibTeX

@techreport{greencapendtechnical, author = {{GreenCape}}, title = {{Technical factsheet for pumps and motors}}, institution = {GreenCape}, url = {https://greencape.co.za/wp-content/uploads/2023/08/Factsheet-2_Pumping.pdf}, urldate = {2026-08-17}, note = {Indexed by Climate Insights Directory} }