C4E Forum - What is C4E Forum?

Meet the C4E 2025 Champions

C4E Forum 2027

The next edition of the biennial Central and Eastern European Energy Efficiency Forum – C4E Forum 2027 will take place between 18^thand 21^st May 2027 in Maribor, Slovenia.

A unique event for discussing energy efficiency related topics among specialists from different backgrounds in its 6^th edition will again (after Poiana Brasov in Romania) take place in the mountains.

More info soon!

What is the C4E Forum?

In short—not your average conference. Our aim is to build and strengthen Central and Eastern Europe’s energy efficiency community. C4E Forum has become a bi-annual community-building event taking place already for the fourth time.
But don’t just take our word for it. These four statements summarize the C4E Forum the best, according to our participants:

“The mix of different stakeholders and diverse perspectives is very rich”
“It has unique focus on the CEE region”
“It gives me great informal environment to build my network”
“It is interactive, not just full of frontal presentations”

News

February 2, 2026

Understanding Poland’s Building Data Gap

What does Poland’s building stock really look like today and what stands in the way of making...

December 8, 2025

Understanding Romania’s path to building decarbonisation

As Romania moves toward decarbonising its buildings, a clear picture of the current...

November 17, 2025

Video interview with Marko Zlonoga

Marko Zlonoga from REGEA - North-West Croatia Regional Energy and Climate Agency...

C4E Forum 2025-The go-to event for EPBD and EED implementation in CEE

C4E Forum 2025 took place between 20th and 23rd May 2025 in a beautiful city of Cavtat in the Croatian Coast. This peacuful small town is located in a picteresque part of the Dalmatian coastline and nearby the Dubrovnik airport.

C4E Forum 2023

The 4th edition of the unique community-building and networking event on energy efficiency in Central and Eastern Europe – The Central & Eastern European Energy Efficiency Forum 2023 (C4E Forum 2023) took place between the 23rd and 26th of May 2023, in the central location of Šamorín near Bratislava, Slovakia.

C4E Champion award

The C4E Champion Award is organized by C4E Forum organizers to recognize extraordinary contribution of public officials in Central and Eastern Europe to progressing energy efficiency policies in their country or region. The Award ceremony takes place at the C4E Forum.

More info