City Solutions Platform

Leading cities around the world are searching for innovative solutions to the major sustainability challenges they face.


Leading cities around the world are searching for innovative solutions to the major sustainability challenges they face, ranging from adapting to the effects of climate change, to providing their citizens with low carbon energy, waste, water and mobility options. However, many cities face procurement and conflict-of-interest challenges when working directly with the private sector.

The City Solutions Platform (CSP) is a way to support early engagement between cities and the private sector to accelerate the deployment of climate solutions. It will build a platform for public and private entities to work together to develop implementable city solutions on the global stage.


The City Solutions Platform will:

  • Act as a catalyst for deeper partnerships between global cities and leading sustainable solutions providers.
  • Lead to a shared understanding of the nature of the problems faced by cities, and the means available to the city to solve them, and the potential for climate action.
  • Lead to the formation of a global network of new city-private sector partnerships.
  • The platform will develop innovative best-practice solutions for megacities that can be replicated across the network of C40 cities.

Pilot Cities

Melbourne, Rio de Janeiro, Seattle and Sydney have been selected to participate in the first round of the City Solutions Platform.

Through the CSP, pilot cities will address a variety of climate related challenges, leading to innovative solutions that can inspire other C40 cities.

  • The City of Melbourne will use the CSP to create innovative approaches to the drainage and flood management in an urban renewal area adjacent to central Melbourne (Arden Macaulay precinct).
  • The CSP will help the City of Rio de Janeiro in implementing innovative financial, social and environmental solutions to treat the organic fraction of its waste, which represents over 50% in weight of total household waste stream in the city.
  • The City of Seattle is looking to the CSP to assist in creating a new policy framework which allows the city to more easily adopt innovative transportation products and services through high-tech and data driven solutions.
  • Finally, the City of Sydney will use the CSP to determine the most effective way to generate 50% renewable electricity by 2030, which is essential to achieving net-zero emissions by 2050.


December 2015 –  December 2017

Project Partners

C40 Cities Climate Leadership Group (C40), International Cleantech Network (ICN), Danfoss, Hitachi, RTI and CLEAN

Funded by