The Cheshire actor makes a dramatic on-screen Weatherfield debut as Ryan Connor on Wednesday, replacing Ben Thompson in the role.
Interviewed on today's Daybreak, Heras conceded: "I'm still nervous about the whole thing, I guess. It's such a big show, there's such a responsibility with being an actor on it to do a good job.
"So it's exciting times, but at the same time, it's nerves. I have sweaty palms when I'm watching it."
The fledgling actor, who has previously appeared in Hollyoaks Later, also admitted that he has been overwhelmed by his experience on set so far.
"Every single day, when I've finished a scene and I walk back to the green room where everyone congregates, I have to pinch myself that I'm walking past the Rovers, on the cobbles, and the pigeons are flying past," he added.
"Every single day, it's amazing that is my job now to be there."
Speaking to Digital Spy recently, the Corrie star revealed that he was most 'star-struck' by legend Bill Roache, who has played Ken Barlow since the show's first ever episode in 1960.
> Read Digital Spy's interview with Sol Heras in full
> Read more Coronation Street spoilers here