Our project "Development of smart energy optimization system for buildings" is co-funded by the European Union. The project is done in 2023-2025 and the scope of the project is to develop a new solution for the smart energy optimization of buildings. The project supports the development of the digital economy by offering the market's most advanced monitoring and control system for the smart energy management of buildings. The project develops a completely new solution for the market, where buildings are offered a complete solution for intelligent energy optimization or a partial solution to support the existing building automation system. The project supports the green transition and meeting the EU's energy-saving goals.