Abstract :
This paper is a general description of the interconnected power systems in the region surrounding and including Chicago as a center. The electrical energy generated in this region in 1926 was over 4,000,000,000 kw-hr. and the combined generating capacity of the three largest companies was 1,340,000 kw. The paper outlines important features of major stations and transmission and distribution systems and gives plans for the future developments. It also explains the contract for interchange of energy among the three largest companies.
