In: Latvian Academy of Sciences Yearbook 2021, 2021, pp. 84-87.
“The main advantage, however, of integrating industrial robots in a common DC supply system is the possibility to recuperate the braking energy, which leads to considerable energy savings. The level of savings depends on the robot count within a production cell, as well as on the robot motion patterns and tasks. Measurements acquired in the demonstration production cell of Daimler, showed that while carrying out real-life production tasks the novel DC-grid production cell could save up to 13.2%  compared to the traditional AC-grid supplied system. These impressive results surely played a significant role in encouraging Daimler AG to initiate the expensive and ambitious project entitled “Factory 56”.”
Read the whole article here (pdf).