KRITON Energy's staff consists of experienced qualified Mechanical Engineers, while the network of external partners contributes to the holistic approach of each energy renovation project. The energy renovation concerns the implementation of measures and interventions to save energy in the building and industrial sector. We deal with each project separately and proceed with the preparation of studies before any implementation of interventions, documenting and quantifying the benefits of the proposed interventions to save energy and operating costs. We model each building installation with modern 3D tools (BIM), providing detailed information for the correct implementation of the proposed interventions in order to ensure the desired results.