of twentieth-century art. It also introduced spaces for shorter exhibitions in between the wings. The layout was: Material Gestures Poetry and Dream Energy and Process States of Flux In 2012, there was a partial third rehang. The arrangement was: Poetry and Dream Structure and Clarity Transformed Visions Energy and Process Setting the Scene – A smaller section, located between wings, covering installations with theatrical or fictional themes. Temporary exhibitions The Turbine Hall The Turbine hall, which once housed the electricity generators of the old power station, is five storeys tall with 3,400 square metres of floorspace. It is used to display large specially-commissioned works by contemporary artists, between October and March each year. From 2000 until 2012, the series was named after its corporate sponsor, Unilever. In this time the company provided £4.4m sponsorship in total including a renewal deal of £2.2m for a period of five years agreed in 2008. This series was planned to last the gallery's first five years, but the popularity of the series led to its extension until 2012. The artists who have exhibited commissioned work in the Turbine Hall as part of the Unilever series are: In 2013, Tate Modern signed a sponsorship deal worth around £5 million with Hyundai to cover a ten-year program of commissions, then considered the largest amount of money ever provided to an individual gallery or museum in the United Kingdom. The first commission for the Hyundai series is Mexican artist, Abraham Cruzvillegas. The artists who have exhibited commissioned work in the Turbine Hall as part of the Hyundai series thus far are: When there is no series running, the Turbine Hall is used for occasional events and exhibitions. In 2011 it was used to display Damien Hirst's For The Love of God. A sell-out show by Kraftwerk in February 2013 crashed the ticket hotline and website, causing a backlash from the band's fans. In 2018 the Turbine Hall was used for two performances of Messiaen's Et exspecto resurrectionem mortuorum and Stockhausen's Gruppen. Major temporary exhibitions Two wings of the Boiler House are used to stage the major temporary exhibitions for which an entry fee is charged. These exhibitions normally run for three or four months. When they were located on a single floor, the two exhibition areas could be combined to host a single exhibition. This was done for the Gilbert and George retrospective due to the size