Energy resources are key to the economy. Firstly, any processes in the production sector are associated with energy consumption. Energy costs permeate all areas of material production, are the most important and integral part of both core and working capital. Secondly, energy resources are currently scarce and define the limits of economic development. At present, the issues of improving energy efficiency from the sectors of the economy are given great attention. For the implementation of programs to increase economic efficiency, the development of theoretical provisions and methodological foundations of energy economic assessment of production is of great importance, There is a variation in the energy equivalents per waste of production resources offered by standards for different types of energy. Considering energy issues in economic systems, economic energy is not found in the relevant classifications, but experts consider the allocation of such a category in the theory of economic development to be timely, and this category fully meets all economic indicators. To do this, it is necessary to determine the energy equivalent for each energy source. The article assumes the calculation of energy equivalents expressed by rational numbers. The use of energy equivalents allows you to move to a single measure of energy for all types. A single measure of energy allows you to move to a single international currency for financial and economic international cooperation.