The St. Pauls Center is the third Watts Works Learning Center in the U.S., joining centers in North Andover, Massachusetts, and Woodland, California.

Three-day event will occupy 10 exhibition halls for the first time, while a record-breaking 380,500 square feet of exhibition space will host 1,300 exhibitors from 22 countries and regions.

Using up to 96 percent of the fuel, a commercial facility with a cogeneration system can produce both energy-efficient heat for domestic hot water and electricity to reduce energy consumption from external power sources.