Elon Musk China Reuters/Bobby YipTesla Chief Executive Elon Musk reacts as he attends a forum on startups in Hong Kong

Elon Musk has a bold prediction for sustainable energy in China.

He believes that the country's enormous energy needs could easily be provided by solar power alone.

The multi-industry entrepreneur is certainly no stranger to hyperbolic tech visions. Speaking with CNN's Kristie Lu Stout onstage at last month's StarmeupHK Festival in Hong Kong, Musk first discussed the threat cheap oil poses to sustainable energy's short term goals.

"It definitely makes the transition to sustainable energy more difficult," Musk told CNN. But this transition is necessary since China is currently the world's largest carbon emitter and polluter. Musk has said before that we need to move away from dirty energy, so it's no surprise that Musk has his eyes on the country's energy needs.

"It's worth noting, certainly, China has actually an enormous land area, much of which is hardly occupied at all. Given that the Chinese population is so concentrated along the coast, once you go inland, the population in some cases is remarkably tiny," Musk said."So you could easily power all of China with solar."

solar panel chinaCarlos Barria/ReutersA worker inspects solar panels at a solar farm in Dunhuang, China.

During the interview, Musk did lay ou some of the limitations of solar power, especially in vertically-oriented cities, like Hong Kong, and other densely populated regions, like the very areas of China that Musk would be powering with solar energy.

"In dense cities, rooftop solar is not going to solve the energy need," Musk said. "But what you can do is have ground mount solar power that's say, near Hong Kong, tapping into the existing power lines that are coming in. So you can supply Hong Kong with solar power, it would just need to be coming from a land area that's not too far away."

Watch the whole talk at StartmeupHK below: