Alliant Energy Center is a multi-building complex in Madison, Wisconsin, encompassing 164 acres. It features the Exhibition Hall (255,000 sq ft), Veterans Memorial Coliseum (10,000 seats), Willow Island (29 acres), multi-use pavilions, and the Arena (22,000 sq ft). The center hosts over 500 events annually, attracting over a million visitors. Events range from local meetings and banquets to large sporting events and concerts.
In 1938, the Dane County Fair was halted at the Lakeside Park Farm site due to financial difficulties.
In 1941, the Dane County Board managed to pay off the mortgage for the Lakeside Park Farm property.
In 1951, the Dane County Fair moved back to the present Alliant Energy Center (formerly the Expo Center).
In 1954, the Arena was built at the Alliant Energy Center site; it is the only building still standing from that era.
In 1962, the Youth Building was constructed and housed the offices for 4-H in Dane County. The building now serves as the administration building for the Alliant Energy Center.
In 1967, Veterans Memorial Coliseum was built.
In 1967, the Wisconsin Badgers men's hockey team began playing at the Coliseum.
Since 1971, state tournaments for boys' hockey have been held in the Coliseum, except in 1974 and 1975.
In 1974, the first Exposition Center Commission was appointed to head construction and development for the present Alliant Energy Center (formerly Expo Center).
In 1974, the state hockey tournament was held in Green Bay.
In 1975, the state hockey tournament was held in Green Bay.
In 1977, the Coliseum schedule reached 160 event days, indicating a demand that trade and consumer shows and conventions were competing with other events.
In 1978, an addition to the Youth Building (now the Administration Building) was built and the new facility was named the Forum.
Since 1990, the Alliant Energy Center has operated without the use of County general fund monies.
In 1992, Veterans Memorial Coliseum celebrated its 25th anniversary, marking over 16 million visitors to the venue.
In September 1995, Exhibition Hall was completed.
In 1995, Exhibition Hall replaced the Forum.
In 1995, the Madison Monsters minor league hockey franchise began playing in the Coliseum until 1999.
In 1997, the Wisconsin Badgers men's hockey team moved to the Kohl Center.
In 1998, the Madison Mad Dogs indoor football team played in the Coliseum until 2000.
In 1999, the Wisconsin Badgers women's hockey team played a number of games on the Coliseum ice.
In 2000, the Madison Kodiaks played in the coliseum.
In 2000, the naming rights for the Dane County Exposition Center campus were sold to Alliant Energy Corporation for 20 years.
Since 2001, all state tournaments for girls' hockey have been held in the Coliseum.
In 2002, Willow Island was developed.
In 2003, Willow Island debuted as an outdoor venue.
In 2004, Veterans Memorial Coliseum started a complete renovation project, completed in 2005.
In 2004, Willow Island hosted the fifth year of the ESPN Great Outdoor Games.
In 2004, the WJJO Band Camp music festival was held at Willow Island.
In 2005, Veterans Memorial Coliseum completed the renovation project started in 2004.
Starting in 2005, Willow Island became the new location for the annual Brat Fest fundraiser.
In 2013 Dane County completed plans for the construction of new multi-use pavilions at the Alliant Energy Center.
In April 2014, construction began on new multi-use pavilions at the Alliant Energy Center.
In 2015, the last WJJO Band Camp music festival was held at Willow Island.