President Trump is considering positioning solar panels on the wall he wants to build between the U.S.-Mexico border out of solar panels, according to remarks he made in Iowa Wednesday evening.

"We are thinking of something that's unique. The southern border — lots of sun, lots of heat. We are thinking about building a wall as a solar wall. So it creates energy. And pays for itself," Trump said to cheers from the crowd at Kirkwood Community College in Cedar Rapids, Iowa.

President Trump suggests building a border wall with solar panels "so that it creates energy and pays for itself" pic.twitter.com/lzRWzgFXU9 — FOX & friends (@foxandfriends) June 22, 2017

"I think we can make it look beautiful too. It would really look beautiful. That would be nice," said Trump.

Trump quipped that the solar installation would cost Mexico "much less money."

"And that's good. Right? Is that good? You are the first group I've told that too. It makes sense. Let's see. We are working it out. Solar wall panels. Think of it, the higher it goes, the more valuable it is," Trump said.

Trump's return to the Midwest marked the middle of his administration's technology week. He visited Iowa to focus on innovations in agriculture.