Sustainable development is development that meets the needs of the present without compromising the ability of future generations to meet their own needs."

The Report of the U.N. Brundtland Commission, Our Common Future, 1987

"Then I say the Earth belongs to each generation during its course, fully and in its right no generation can contract debts greater than may be paid during the course of its existence"

Thomas Jefferson, September 6, 1789

"You never change things by fighting the existing reality. To change something, build a new model that makes the existing model obsolete."

Buckminster Fuller, philosopher, futurist and global thinker (1895 - 1983)


Visa information


SDEWES2020 Conference will be held in Cologne, Germany and if you are not an EU national or you do not have a valid Schengen document, you might need a Schengen short-stay visa. Please check here countries whose citizens require/do not require visas to enter Germany. Germany is a part of the Schengen area, for more information on the visa policy of the Schengen Area see here.

Due to Covid-19 travel restrictions, authors that need a visa are strongly suggested to settle the online fee as the Conference will not be able to issue an invitation letter to participants.

If you have any doubts or questions, please contact Ms. Iva Gavran,


Benchmarking the performance of cities across energy, water and environment systems
related metrics presents an opportunity to trigger policy learning, action, and cooperation to bring cities closer to sustainable development.