SMS Siemag developed a new electric arc furnace (EAF) for continuous operation. The ARCCESS® steady EAF (S/EAF®) allows real continuous operation for up to one week. It yields 30% higher productivity with lower energy consumption thanks to its continuous process. The integrated energy recovery system further improves efficiency by utilizing the thermal energy of the hot furnace off-gas. All components have been designed to allow continuous power-on operation for around one week. Uninterrupted operating practice is made possible by a patented system derived from SAF technology, which allows the electrodes to be clamped and slipped continuously. Whenever an electrode has been used up, a fresh piece of electrode is joined on at its end.