3Smart - Smart Building – Smart Grid – Smart City

Current tendencies in the Danube Region to integration of energy-efficiency  measures and renewable energy  are not followed by their adequate interactions to enable cost-optimal operation of the building as a whole. Distribution system operators are reluctant in allowing additional capacities of intermittent renewable energy in the grid as they engage investments into the grid and a costly reserve for secure operation. Distribution system operators are interested in introducing coordinated energy exchange with prosumers through dynamically changing conditions, e.g. via optimized price profiles for netto energy exchange. Currently neither of the countries in the Danube Region has regulatory/technology framework developed for inception of building-grid cross-spanning energy management schemes.
The main objective of the 3Smart project is to provide a technological and legislative setup for cross-spanning energy management of buildings, grids and major city infrastructures in the Danube Region. It will provide optimal economical value to energy-efficiency and renewable energy  investment in the building and optimized costs on the grid side as well as motivate installation of distributed storages for improving energy security in the Danube Region.

The project outputs are:

(i) Modular software tool for energy management on building and distribution grid side,

(ii) Five pilot actions in different Danube Region countries including buildings and grids with intersected technology/regulatory setups and

(iii) Strategy to enable city-wide energy management and related regulatory barriers removal in the Danube Region.

Main target groups are regulatory energy agencies/ministries (related to updating regulatory set-up), distribution system operators and suppliers (related to improving grid effectiveness), local authorities and regional energy agencies (related to reducing return-on-investment for investments in energy-efficiency and renewable energy); R&D institutions (related to possibly new modular extensions to the developed energy management, for specific configurations of buildings and grids).
Major innovative moment is in vertical two-way synchronization through all the modules via simple interfaces to attain optimal operation of the buildings and the grid, and easy modules add-on to the existing already deployed automation equipment.

Smart Building – Smart Grid – Smart City
Start date
End date
Budget in Euro
Overall: 3791343,41
ERDF Contribution: 2684885,78
IPA Contribution: 537756,07
ENI Contribution: 0
Call number
Call 1
Better connected and energy responsible Danube region
Specific objective
Improve energy security and energy efficiency


As soon as the project achieves an output, it will be published in this section. Check the project webpage for more information
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Project Partners

Name Type Email Country
University of Zagreb Faculty of Electrical Engineering and Computing Lead partner mario.vasak@fer.hr CROATIA
Hrvatska elektroprivreda d.d. ERDF partner ivona.stritof@hep.hr CROATIA
E 3, ENERGETIKA, EKOLOGIJA, EKONOMIJA, d.o.o. ERDF partner alan.krizaj@e3.si SLOVENIA
Municipality Idrija ERDF partner miran.podobnik@idrija.si SLOVENIA
Elektro Primorska d.d. ERDF partner jurij.jurse@elektro-primorska.si SLOVENIA
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Project News

  • 3Smart - Forthcoming Round table "Current challenges in Energy"
    - 20-04-2017

    Croatian Academy of Engineering and Innovation Centre Nikola Tesla are kindly inviting you to the Round table "Current challenges in Energy" where the 3Smart project will be presented. The event will be held in Zagreb, University of Zagreb...

  • 3Smart - presented to students in Zagreb and Belgrade who compete in design of automation systems through the PLC+ challenge
    - 13-04-2017

    Within the international student challenge PLC+ that involves graduate and undergraduate students from Croatia, Serbia and Slovenia who compete in design of practical automation systems, the 3Smart project manager Assoc. Prof. Mario Vašak held a...

  • 3Smart - presented at Lider Conference "Smart Cities 2017"
    - 13-04-2017

    On 07th April 2017 3Smart was presented at Lider Conference "Smart Cities 2017", conference that brings together representatives of cities, owners of smart solutions, academia and the representatives of public sector in order to jointly work on...

  • 3Smart - Modular building energy management followed on 3Smart is published in Applied Energy journal
    - 07-04-2017

    The 3Smart team from University of Zagreb Faculty of Electrical Engineering and Computing (Lead Partner) published an article "Modular energy cost optimization for buildings with integrated microgrid" in Applied Energy, a prestigious scientific...

  • 3Smart - Introductory article in EGE technical magazine
    - 14-03-2017

    EGE technical magazine, that covers a wide range of topics from the field of power industry, economy, ecology and ethics (the name is an acronym of the related Croatian expressions) and is acknowledged and recognised among professionals from...

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Programme co-funded by European Union funds (ERDF, IPA, ENI)