Born 1971, in Jyväskylä, Finland, lives and works in Gothenburg. Orenius has studied in Turku Art- and Communication School, Helsinki Academy of Fine Arts, Paris Supérieure Nationale des Beaux-Arts, ‘Writing on art’ studies in Vasari program in Helsinki and ‘New media’studies at Valand Art School (2001-2002) in Gothenburg. These studies include video, fine art, film- and art theory as well new media. In her video works she examines the relation between images and words as well the meaning of the spoken word in relation to dream or text.

Her themes are connected to the phenomenons of contemporary culture and the starting point is often a theoretical way of thinking. She uses video, film, photography, performance, drawing, sound and digital media in her art. In November 2003 she started with two other persons a new gallery space 300m3 in Gothenburg which mainly shows video, performance and digital art. She has worked in Borås Art Museum as a pedagogue in media art, in Finland as a teacher in video, as a guide in Kiasma and a curator / distributor in AV-arkki.