Penacca was born on 27 April 1981[1] in Zárate, Buenos Aires Province, though she has lived in the City of Buenos Aires since she was 5 years old. Her father was a sympathizer of the Radical Civic Union and of Raúl Alfonsín.[2] She has stated that the economic hardships her family faced during the 1990s inspired her to become politically active; she began her political involvement in public schools in the villas of Buenos Aires. Following the election of Néstor Kirchner as president of Argentina in 2003, Penacca became involved in La Cámpora.[3]
Later, she would be instrumental in the organization of La Cámpora in Villa 20, in the barrio of Lugano. She has also been active in Villa 31.[4]
Penacca forms part of and presides the parliamentary commission on internal security. In 2021, she presented a bill to establish a protocol against institutional violence, backed by a number of human rights activists as well as the Security Ministry.[13][14]
^"Elecciones 2013". argentina.gob.ar (in Spanish). Dirección Nacional Electoral. Retrieved 4 February 2023.
^"Elecciones 2017"(PDF). tsjbaires.gov.ar (in Spanish). Tribunal Superior de Justicia de la Ciudad Autónoma de Buenos Aires. Retrieved 4 February 2023.
^"Elecciones 2019". argentina.gob.ar (in Spanish). Dirección Nacional Electoral. Retrieved 4 February 2023.
^"Elecciones 2023". electoral.gob.ar (in Spanish). Cámara Nacional Electoral. Retrieved 14 December 2023.