The Powerhouse Museum is the major branch of the Museum of Applied Arts & Sciences in Sydney, the other being the historic Sydney Observatory. Although often described as a science museum, the Powerhouse has a diverse collection encompassing all sorts of technology including decorative arts, science, communication, transport, costume, furniture, media, computer technology, space technology and steam engines.
It has existed in various guises for over 125 years, and is home to some 400,000 artifacts, many of which are displayed or housed at the site it has occupied since 1988, and for which it is named — a converted electric tram power station in the Inner West suburb of Ultimo, originally constructed in 1902. It is well known, and a popular Sydney tourist destination.
In 2016, a proposal to move the Powerhouse Museum from inner Sydney Ultimo to the western Sydney district of Parramatta proved controversial and an announcement from the NSW government in April 2017 suggested that the Powerhouse Museum may stay in its current location. On 18th July 2017, Australia's Nine Network reported that the Powerhouse Museum would indeed stay in its current location.