Corporation cycle of developing a project and its implementation in the production to minimize energy costs is considered. A hierarchical control system for this cycle is reviewed for harmonizing the interests of its elements taking into account the human factor. A procedure for a comprehensive assessment of project to diminish the energy costs of production is proposed. The key factor of such an assessment is the energy costs rating of existing production. The problem of determination of such a rating is formulated. Sufficient conditions for such determination are obtained taking into account the interests of the elements of the corporation responsible for production. These conditions are illustrated by the example of determining the ratings of energy costs of production in large scale corporation Russian Railways. An example of a comprehensive assessment procedure for projects to reduce the cost of energy production in this corporation based on these ratings is given.