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
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 - Public tender
    - 13-10-2017

    Municipality Idrija – 3Smart Partner – has launched two public procurements for the upgrade of its pilot buildings in order to enable running of the 3Smart building-side modules on it. The calls were published in the Slovenian Portal of public...

  • 3Smart - Public tender
    - 05-09-2017

    University of Zagreb Faculty of Electrical Engineering and Computing (3Smart Lead Partner) has launched a public procurement for the upgrade of its pilot building in order to enable running the 3Smart building-side modules on it. The call is...

  • 3Smart - presented on Radio Sljeme and Croatian National Television
    - 16-06-2017

    3Smart project was presented on Croatian radio station, Radio Sljeme and Croatian National Television within their science and educational shows that opens up space for new knowledge, popularizes science and brings the latest topics from the...

  • 3Smart - presented on TEDx Zagreb event
    - 16-06-2017

    Laboratory for Renewable Energy Systems (LARES) of University of Zagreb Faculty of Electrical Engineering and Computing, that participate in execution of 3Smart project together with the Smart Grids Laboratory (SGL), presented its activities on...

  • 3Smart - Presented at the Seminar ‘Possibilities of Renewable Energy Sources Application’
    - 09-05-2017

    Project 3Smart was presented at the Seminar ‘Possibilities of Renewable Energy Sources Application’, central point for the gathering and exchange of knowledge, experiences and opinions of all those who in their daily work come in contact with...

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