The 15th Energy Efficiency & Renewables and Smart Cities Exhibition and Conferences promote environment-based intelligent solutions. Laying the ground for face-to-face meetings between international providers and new local business partners, the event welcomes advanced technologies and good practices at the South Eastern European market. South-East Europe is following the global trends and makes real steps towards its sustainable development: replacement of fossil fuels with renewables, improvement of energy efficiency, building of digital cities, introduction of low-carbon mobility.