Usina do Gasômetro, Former thermal power plant and cultural center in Porto Alegre, Brazil

Usina do Gasômetro is a former coal power station on the shore of Guaíba Lake in Porto Alegre, its tall brick chimney marking the site. The industrial building spans several floors and now holds exhibition rooms, theater halls, and open areas overlooking the water.

The American firm Electric Bond & Share Co. built the plant in 1928 to supply power to the growing city. After closing in 1974, the building faced demolition, but a citizens' movement in the early 1980s saved it and led to its conversion into a cultural center.

The name comes from the Gasômetro gas plant that lit Porto Alegre's street lamps from 1874, not from the later power station. The site is also called Ponta do Gasômetro. Since 1991 the building has hosted the Usina das Artes project for local theatre and dance groups, and the P. F. Gastal room, opened in 1999, was the city's first municipal cinema.

The building has been closed for renovation since November 2017, so the halls, cinema and fourth-floor terrace over the Guaíba are not accessible. The Usina das Artes groups were moved to a city building on Santa Terezinha Street, 711, in the Santana neighbourhood, and the P. F. Gastal cinema's programme went to the Cinemateca Capitólio. Check locally before planning a visit.

The chimney lights up in different colors at night and is often used to mark special occasions or city campaigns. The square in front of the building regularly hosts craft fairs and food stalls, drawing crowds especially on weekends.