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Water Resilient Cities Program 

City of tshwane & Aarhus

The Strategic Sector Cooperation between City of Tshwane and Aarhus is a city-to-city framework, in which the two cities cooperate in the formulation, design, and implementation of a series of initiatives targeted at improving the service delivery of Tshwane’s water sector. The cooperation started out in 2017 focusing on Sustainable Urbanism, but as it entered its second phase in 2022, the focus was narrowed in to Urban Water Resilience

South Africa, and the City of Tshwane in particular, faces many water related challenges, including:

  • Issues of water loss (Non-Revenue Water) throughout the distribution system,
  • Inefficient and insufficient treatment of waste water,
  • Water pollution from industries and
  • High dependence on external water transfers.

Additionally, City of Tshwane does not have a water security vision or strategy which is a great policy gap given the above-mentioned challenges and a continuously growing demand for water and sanitation services.

Four thematic tracks

  1. Non-Revenue Water:

    Between 30-40% of the drinking water in City of Tshwane never reaches the consumers due to leaks and theft. In Aarhus this number is around 5%. Therefore, the program aims to help minimizing water loss and thereby increasing the city’s revenue. This also involves testing out methods for leak detection and building business cases based on results and impact on the ground.

  2. Wastewater Management:

    Tshwane’s Waste Water Treatment Works are underperforming due to over-capacity and inadequate maintenance. This results in untreated effluent polluting rivers, dams, and drinking water, while the city spends millions annually to deliver clean water to affected areas. By adopting modern technologies, better operational procedures, and drawing on international best practices, as well enhanced regulatory enforcement, the goal is to improve the quality of the treated waste water with 10% and disseminate results to the cities other plants.

     

  3. Own Resource Optimization:

    Tshwane is heavily dependent on the national water supplier, Rand Water, who currently supplies around 80% of the city’s water. The city only generates around 12.5% of its own water daily, but there is potential to increase this to over 40%. This would lower the cost and generate extra revenue for the city. Therefore, the track will investigate the potential of extracting other water sources and better utilisation of existing ones.

     

  4. Water Security Strategy:

Despite significant water related challenges, City of Tshwane does not have a comprehensive, city wide water strategy. The aim is to establish a sustainable, holistic approach to water management that aligns with the Tshwane Climate Action Plan. A central focus is fostering collaboration across all relevant departments to create an integrated, cross-cutting water security framework, drawing inspiration from City of Aarhus and Aahus Water’s Water Security Vision from 2010.

Additional activities

The cooperation also involves academic and capacity building exchange component, through the Danida Fellowship Center, where city official from City of Tshwane frequently participate in academic courses at leading Danish knowledge institutions. Additionally, a close collaboration with the Danish Sustainable Infrastructure Fund has paved the way for financial support to several infrastructure projects in City of Tshwane.

Stakeholders involved:

 

Name

Activity

Role

City of Aarhus

Local Government

Partner

City of Tshwane

Local Government

Partner

Embassy of Denmark in South Africa (Pretoria)

Embassy

Facilitation of project

Aarhus Vand

Water utility from Denmark

Key stakeholder

RAND Water

Water utility from South Africa

National water supplier 

Department of Water and Sanitation

National Government Department responsible for the formulation and implementation of policies governing the water sector

Legislator and regulator of water sector

Water Valley Denmark

Cluster alliance between Danish water companies

Private stakeholder 

C40

C40 is a group of 97 global cities focused on fighting climate change

Key international stakeholder for knowledge dissemination

IWA

International Water Alliance

Knowledge and events partner

U20

 

 

 

Contact and further information

For further information on the Strategic Sector Cooperation between City of Tshwane and Aarhus, please contact the Embassy of Denmark in Pretoria:

city of Johannesburg & copenhagen

Water and sanitation are basic needs for human activity. Access to water for drinking and domestic use is critical in assessing the quality of life of people. However, providing water and sanitation is a considerable challenge for many South African municipalities. City of Johannesburg, which is the economic hub of South Africa, is facing severe service delivery challenges within water and sanitation as well as energy efficiency in public buildings. Challenges such as high-water loss, flooding and underperforming wastewater treatment works are posing a serious risk for the citizen’s health, economic development and the surrounding environment.

The Strategic Sector Cooperation 

In March 2024, City of Copenhagen and City of Johannesburg signed Memorandum of Understanding (MoU) to embark on a new Strategic Sector Program which started in 2025. The program is a peer-to-peer collaboration, in which the two cities collaborate in the formulation, design and implementation of initiatives targeted at improving framework conditions for green transition, water resource management and energy efficiency in public buildings in Johannesburg.

Main SA partners to the cooperation

The main South African partners for phase I of the Water Resilient Cities Program consist of:

  • City of Johannesburg (CoJ)
  • Johannesburg Water
  • City Power
  • Johannesburg Roads Agency
  • C40

A number of other South African stakeholders and private sector companies will be included in the program once it enters into implementation in 2025.

The main Danish partners are City of Copenhagen, BIOFOS (water utility) and HOFOR (water and energy utility): City of Copenhagen is the formal project owner and key stakeholder in the program, is the responsible planning and regulatory authority, whereas BIOFOS and HOFOR are responsible for operation and maintenance of both the drinking water and wastewater infrastructure. HOFOR is also responsible for supplying Greater Copenhagen with district heating, district cooling and gas. In collaboration with City of Johannesburg as well as other South African partners, the Danish entities will facilitate the transfer of relevant Danish know-how, experience, and technology tailored to the local demands of the City of Johannesburg in an effort to build capacity throughout the City of Johannesburg’s water infrastructure.