Caroline Schäfer analyzes the double moral hazard incentive problem arising from a long-term cooperation with mutual dependencies and, based on this, develops specific incentive contract models for energy performance contracting in energy services, which provide for a sharing of the jointly realized savings results. The theoretically derived design recommendations for an incentive-optimal contract design can also be easily transferred to similarly structured service cooperations. The author, Dr. Caroline Schäfer, is a research associate and habilitant under Univ.-Prof. Dr. Alexander Baumeister at the Chair of Business Administration, particularly Controlling, at the University of Saarland.