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 optimal operation of the building as a whole. Distribution system operators are reluctant in allowing renewable energy in the grid as it engages investments into the grid and increases costs for its correct and secure operation.

Distribution system operators are interested in introducing coordinated energy exchange with buildings through dynamically changing conditions, e.g. via optimized hourly price profiles.. 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 at the same time it will result in optimized costs on the grid side whereas grid and buildings will also interact through exchanging energy and prices data. This is expected to motivate installation of distributed storages in both buildings and grids 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 of the energy management tool 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
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
European Centre for Renewable Energy Güssing Ltd. ERDF partner j.hacker@eee-info.net AUSTRIA
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Project News

  • 3Smart - invited lecture at AMAC Alumni FER
    - 17-06-2019
    invited lecture at AMAC Alumni FER

    3Smart project lead prof. Mario Vašak held a lecture titled "Smart building – Smart grid – Smart city " on May 30th, 2019 at the University of Zagreb Faculty of Electrical Engineering and Computing. During the lecture, 3Smart project methodology,...

  • 3Smart - Techne Summit Partnership
    - 17-06-2019
    Techne Summit Partnership

    We are glad to present our partnership with Techne Summit, the international entrepreneurship technology conference held in Dubrovnik this year May 3-4 bringing together renowned global players in the technology industry from different...

  • 3Smart - presented to the representatives of the Embassy of Denmark and Danish IT managers associations
    - 17-06-2019

    Representatives of the Embassy of Denmark in Croatia together with the Danish IT managers associations (Foreningen af IT-ledere i Danmark) visited the University of Zagreb Faculty of Electrical Engineering and Computing. 3Smart project...

  • 3Smart - technical and regulatory findings presented to national energy regulators at the Energy Regulators Regional Association (ERRA) workshop
    - 24-04-2019
    technical and regulatory findings presented to national energy regulators at the Energy Regulators Regional Association (ERRA) workshop

    On the 16 April 2019 the 3Smart team consisting Zsuzsanna Czeko and Gabor Peter from partner EON Tiszantuli Aramhalozati Zrt and Mario Vašak from University of Zagreb Faculty of Electrical Engineering and Computing (3Smart Lead partner) presented...

  • 3Smart - at Zagreb Energy Congress 2019
    - 24-04-2019
    at Zagreb Energy Congress 2019

    Within the forth Zagreb Energy Congress 2019, event organized by IEEE Student Branch University of Zagreb, prof. Mario Vašak held a lecture for graduate and undergraduate students. Focus of the lecture was on modular building cost optimization...

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