Three years of the project are over. Today, during the KOMTECH2023 international conference, the last special session dedicated entirely to the HEETII project took place. Project partners gave 5 presentations on wireless and single-wire energy transmission, composite suspended train track, sensor and communication systems, and prototype testing under the conditions of the Barbara Experimental Mine. Right after the special session, the final meeting began, during which we discussed the progress of the work, identified goals for the rest of the year and summarised the entire project.