Sähkötalo is the name of the building located in downtown Helsinki

Helsinki

Helsinki is the capital and largest city in Finland. It is in the region of Uusimaa, located in southern Finland, on the shore of the Gulf of Finland, an arm of the Baltic Sea. The population of the city of Helsinki is , making it by far the most populous municipality in Finland. Helsinki is...

, in Kamppi

Kamppi

Kamppi is a neighbourhood in the centre of Helsinki, the capital of Finland. The name originally referred to a small area known as the "Kamppi field" , but according to the current official designation, "Kamppi" encompasses a much larger area with a population of 10,000 in 2004.The heart of Kamppi...

, that serves as the headquarters of Helsingin Energia

Helsingin Energia

Helsingin Energia , Helsingfors Energi , founded in 1909 and based in Helsinki, is one of the largest energy companies in Finland...

. The building was designed by Alvar Aalto

Alvar Aalto

Hugo Alvar Henrik Aalto was a Finnish architect and designer. His work includes architecture, furniture, textiles and glassware...

.

Construction on the building started in March, 1970, and was ready to be moved in on January 22, 1973. Since October 2007, the bottom floors of the building have been home to stores accessible from Kamppi Center

Kamppi Center

Kamppi Centre is a complex in the Kamppi district in the centre of Helsinki, designed by various architects, the main designer, however, being Juhani Pallasmaa. It is said to be Helsinki's new downtown commercial and residential centre...

 by an underground pedestrian tunnel running underneath Fredrikinkatu

Fredrikinkatu

Fredrikinkatu is a street in Helsinki that starts from the intersection of Tarkk'ampujankatu, Pursimiehenkatu, Laivurinkatu and Laivurinrinne in the district of Punavuori and continues north by the western side of Kamppi Center until it reaches Lutherinkatu and the Temppeliaukio Church in...

. The windowframes of the building are lined with neon

Neon

Neon is the chemical element that has the symbol Ne and an atomic number of 10. Although a very common element in the universe, it is rare on Earth. A colorless, inert noble gas under standard conditions, neon gives a distinct reddish-orange glow when used in either low-voltage neon glow lamps or...

lights that slowly change color throughout the night.