Funny, but to be fair, electricity probably still has its uses in Trek. For instance, does it really make sense to power a toothbrush directly from EPS conduits? (And yes, they seem to still have toothbrushes in the 24th century according to MA; a bit different, but probably still electric.)

Also, according to MA article on EPS:

From the EPS taps, the energy was distributed through conventional electricity; however, this conversion often occurred deep inside the components of a subsystem.