Does it have the same unit as experimental unit like kcal/mole or kJ/mole? Thank you!
No, it reports in Rosetta Energy Units. Rosetta is best for relative rankings of structures, not extracting real-world values. See also http://www.rosettacommons.org/node/1669#comment-1313 and http://www.rosettacommons.org/content/energy-calculation-rosetta34#comme... the question has been answered many times elsewhere on the boards as well.