[en] The concept of energy parks in general and nuclear energy centers in particular has received consideration by utility and government planners since the early 1960's. Reaction to the approach have varied widely. Utilities, however, have generally responded favorably to the principle but recognize that only a very few such sites would be identified and not all of these would be developed. Brief comments on the energy center concept are divided into three general areas: (1) potential problems associated with licensing and other environmental reviews; (2) Commonwealth Edison's assessment of the energy center concept and the near term potential for such sites in the midwest; and (3) several suggested actions which appear prerequisite to the establishment of energy parks