| Profile: Lemont Middle School |
Lemont/Bromberok School District, Lemont, Illinois has recently approved the construction of a 760 kw cogeneration system. The heart of the cogeneration system is a Caterpillar 760 kw natural gas engine-generator set supplied by Patten Power Systems, Elmhurst, Illinois. The cogeneration system operates during Commonwealth Edison's (ComEd) peak energy periods (9:00 am - 10:00 pm Monday-Friday). The cogeneration system operates parallel with the electric utility under ComEd's Plan "A" interconnection requirements. Standby power is purchased under ComEd's Rate 18. The cogeneration system also provides standby power to the facility for electric utility outage protection. The cogeneration system utilizes hot water heat recovery from both engine jacket and exhaust. The waste heat is used in conjunction with proposed boilers and an absorption chiller for building heating and cooling requirements. The cogeneration system is being installed as part of the new 150,000 sq. ft. facility. AMSCO Engineering, Downers Grove, Illinois is the engineering-design firm.