This International Standard has been prepared in response to the rapidly increasing need to ensure and to support the efficient and effective use of energy. This International Standard provides a) a method to estimate energy consumption on a daily and an annual basis for lifts, and b) a method for energy classification of new, existing, or modernised lifts. This International Standard is intended to be a reference for the following parties: - building developers/owners to evaluate the energy consumption of various lifts; - building owners and service companies when modernising installations including reduction of energy consumption - the installers and maintenance providers of lifts; - consultants and architects involved in specification of lifts. - inspectors and other third parties providing energy classification services. This standard includes the German version of EN ISO 25745-2:2015 which has been prepared by Technical Committee CEN/TC 178 "Lifts, escalators and moving walks" in collaboration with CEN/TC 10 "Lifts, escalators and moving walks" of the European Committee for Standardization (CEN). The national interests during the preparation were represented by Working Committee NA 060-33-01 AA "Aufzüge" ("Lifts") at Section "Aufzüge und Fahrtreppen" ("Lifts and escalators") at the Mechanical Engineering Standards Committee (NAM) at DIN. Representatives of manufacturers and users of lifts, and of the employers' liability insurance associations contributed to the preparation.