The Tate Modern in London is building an extension to the existing museum designed by Herzog & de Meuron. The original ’stacked glass box’ has been scrapped in favor of a ‘brick pyramid’ which the Tate says is more flexible than the previous design. The scheme will have to be resubmitted for planning.

The 2008 redesign uses industrial features from the old power station as a base for the addition, mainly old oil tanks which will become unique gallery spaces. The brick scheme also allows for a more consistent aesthetic between the old building and the extension. The changes reflect a more integrated appearance, but will also allow a significant reduction in energy use.

Herzog & de Meuron’s new design for the Tate Modern Extension will bring about a 40% savings in energy and cut carbon emissions by 35% more than regulated standards. The efficiency will be a result of heat recapture systems and passive design principles.

The project is slated for completion by 2012, with £70 million in funding in place from the government, London Development Agency and private donations.

Construction of the scheme, by construction manager Mace, is expected to begin in June 2009, but Serota admitted that it could be 2014 before the scheme is completed if the building is affected by the credit crunch.

He said: ‘This is the most challenging time to get money, but we are talking to individuals who have the ability and the will to help.’

Further information: www.archicentral.com.

To learn more about the architectural concept visit: www.tate.org.uk.