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| Text on Button | SAVE AMERICA'S VALUABLE ENERGY ENERCON EXPO 75 ENERGY CONSERVATION NOT CONVERSATION | 
| Image Description | White text on blue background above red text on white background.  | 
    
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| Additional Information | The Northern Illinois Gas Company (Ni-Gas) began the annual ENERCON EXPO in 1974 that gathered “commercial and industrial customers and consultants to demonstrate energy conservation equipment and applications.” Ni-Gas, the founder of the expo, began working toward energy conservation in 1972 and produced conservation handbooks in 1973 to advertise their efforts. In 1975, Ni-Gas began working on a project employing ceiling insulation to enhance heating and cooling efficiency. ENERCON has since become an energy conservation firm partnering with other energy professionals to ensure safe energy development and use.  | 
    
| Sources | 
             U.S. Department of Energy. (1978). Allocation of Petroleum Feedstock: Northern Illinois Gas Company Aux Sable SNG Plant. Retrieved from https://books.google.com/books?id=oP8wAQAAMAAJ&printsec=frontcover&sour…  | 
    
| Catalog ID | EV0845 |