The study guide demonstrates practical experience and results of specific projects of electric grids digitalization. The approaches given below substantiate the directions of the electric grid company development through the introduction of the latest digital technologies in production processes and management systems. The study guide is a reference book for managers working in digital transformation projects. It also offers a glossary of professional terms in Russian and English. The book is recommended for students majoring in economics and management, as well as for managers working in the power industry who do not have formal energy training.