The present invention discloses an ORC container comprising the following components: a container, in particular an ISO container, having arranged therein an ORC device for converting heat energy into electrical or mechanical energy, wherein the ORC device comprises a working medium; a heat introduction device provided on the ISO container and used for supplying heat energy from an aggregate container; and a spacer device arranged on the container, wherein the spacer device is suitable for providing an intermediate space between the ORC container and the aggregate container. The present invention additionally relates to a system comprising an ORC container and an aggregate container as well as to a method for installing such a system.