Question: When the park opened, which pavilions were not present?
About the article "Epcot", section "World Showcase".

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The pavilions are named for Exelon, a Chicago-based company that generates the electricity transmitted by its subsidiary Commonwealth Edison (ComEd).
The city of Chicago has collaborated with Exelon and ComEd on a variety of environmental projects, including the installation of solar power in buildings, support for sustainable design and renewable energy, and furthering educational and social awareness of green architecture in the city.
The pavilions cost $7 million, $5.5 million of which was donated by Exelon and ComEd.
The lead designer for the North Pavilions was Thomas H. Beeby of Hammond Beeby Rupert Ainge Architects.
Beeby's designs for the North Pavilions are "in harmony with the Harris Theater", for which he was the architect as well.
The North Pavilions are along Randolph Street on either side of the theater, which is Millennium Park's indoor performing-arts venue.
The South Pavilions were designed by architect Renzo Piano of Renzo Piano Building Workshop.
Piano designed the Art Institute of Chicago's Modern Wing, which is across Monroe Street from the South Pavilions and opened in 2009.
The facades of the South Pavilions are limestone and glass in order to complement the Modern Wing, even though it was not completed until several years after the pavilions were finished.
Piano also designed the Nichols Bridgeway, which connects Millennium Park and the Art Institute, and is next to the Southwest Pavilion.
The design process for the Exelon Pavilions began in , with construction starting in .
The general contractor for all four pavilions was Walsh Construction.
The South Pavilions were completed in and opened when Millennium Park celebrated its grand opening on , 2004.
The North Pavilions were not finished in , but were completed in November of that year.
All four Exelon Pavilions were officially opened to the public on , 2005. 
The Exelon Pavilions are four buildings that generate electricity from solar energy and provide access to underground parking in Millennium Park in the Loop community area of Chicago in Cook County, Illinois, United States.
The Northeast Exelon Pavilion and Northwest Exelon Pavilion (jointly the North Exelon Pavilions) are located on the northern edge of the park along Randolph Street, and flank the Harris Theater.
The Southeast Exelon Pavilion and Southwest Exelon Pavilion (jointly the South Exelon Pavilions) are located on the southern edge of the park along Monroe Street, and flank the Lurie Garden.
Together the pavilions generate of electricity annually, worth about $2,350 per year.
The four pavilions, which cost , were designed in ; construction began in .
The South Pavilions were completed and opened in , while the North Pavilions were completed in , with a grand opening on , 2005.
In addition to producing energy, three of the four pavilions provide access to the parking garages below the park, while the fourth serves as the park's welcome center and office.
Exelon, a company that generates the electricity transmitted by its subsidiary Commonwealth Edison, donated $5.5 million for the pavilions.
"Chicago Tribune" architecture critic Blair Kamin praised the South Pavilions as "minor modernist jewels", but criticized the North Pavilions as "nearly all black and impenetrable".
The North Pavilions have received the Leadership in Energy and Environmental Design (LEED) silver rating from the United States Green Building Council, as well as an award from the American Society of Heating, Refrigerating and Air-Conditioning Engineers (ASHRAE). 
The Exelon Pavilions are a set of four solar energy-generating structures in Millennium Park.
The pavilions provide sufficient energy to power the equivalent of 14 Energy star-rated energy-efficient houses in Chicago.
The pavilions were designed in January 2001 and construction began in January 2004.
The Southeast and Southwest Exelon Pavilions (jointly the South Exelon Pavilions) along Madison Street were completed and opened in July 2004, and flank the Lurie Garden.
The Northeast and Northwest Exelon Pavilions (jointly the North Exelon Pavilions) flank the Harris Theater along Randolph Street and were completed in November 2004, with a grand opening on April 30, 2005.
Besides producing energy, three of the four pavilions provide access to the park's underground parking garages and the fourth serves as the park's welcome center.
Exelon, a company that generates the electricity transmitted by its subsidiary Commonwealth Edison, donated approximately $6 million for the pavilions. 
Kansas Pavilions is a complex in the Wichita suburb, of Valley Center, Kansas, that hosts a number of equestrian, livestock, dog and car shows, as well as swap meets and flea markets.
The Pavilions were once part of the Kansas Coliseum complex, which was built in 1977 and included the 9,686 seat Britt Brown Arena.
The arena was closed in February 2010 after the opening of the INTRUST Bank Arena in downtown Wichita, Kansas.
When the Britt Brown Arena closed, there was much public outcry to not close the pavilions at the Kansas Coliseum.
Members of the public who used the pavilions frequently argued that the INTRUST Bank Arena and neighboring show places are not equipped to host "dirt" events, such as equestrian and livestock shows.
On June 30, 2010, the Board of Sedgwick County Commissioners voted to keep the pavilions open through at least 2016 and rename them the Kansas Pavilions.
The facility now consist of four pavilions and a 20-space, full-service RV park.
When Sedgwick County residents voted to approve a 1-cent sales tax to build the INTRUST Bank Arena, they also voted to allocate part of those funds to renovate the pavilions at the Kansas Coliseum (now Kansas Pavilions).
The renovation was carried out in 2006 and 2010 for $4.5 million.
The principal facility is the Sam E. Fulco Arena with 135,000 square feet; other areas include Pavilion II with 90,000 square feet, and the Arena Building with 45,000 square feet; there is also a covered dirt practice area.  
There are three large pavilions that were built by Civilian Conservation Corps.
These pavilions can be reserved up to 11 months in advance.
Pavilions that are not reserved are available on a first come, first served basis.
In addition to the pavilions there are many picnic tables in the forested picnic area that is near Whipple Lake.