Commercial viability for an all-electric commercial aircraft is still kinda far, but a hybrid one seems viable.
Anyway, even in Brazil there is at least one 2-seater electric aircraft on tests, but what bothers me is that its engine is made in Slovenia while one of the world's most important electric motor manufacturers is Weg, headquartered in Jaraguá do Sul, Santa Catarina state.
South America's First Electric Airplane Takes Flight - AVweb flash Article
A carbon fiber-made electric aircraft - SORA-e: A carbon fiber-made electric powered aircraft | The Economic Times
It had, however, a landing gear failure (well, I'd rather use a taildragger instead of the tricycle landing gear if I were going to attempt a similar project)