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Meet Huang Ming, the Chinese inventor who describes himself as, 'the number one crazy solar guy in the world'.

One of the prize exhibits of his museum in northern China is a vintage solar panel. It's a water heater, installed by President Jimmy Carter on the roof of the West Wing of the White House. Back in 1979 the installation was meant to symbolise a new solar-powered future for America. Instead, oil prices fell and Ronald Reagan removed the White House panels.

37 years on and it's China, not the US that's embracing the idea of a solar-powered economy. Huang Ming, an engineer, prominent political figure and businessman is leading the way with his foundation of Solar Valley. In 800 acres of land south of Beijing he employs 3000 people in solar research, development and manufacture.

Peter Hadfield visits Solar Valley to see the fruits of the sun, from a solar-powered yurt to the world's biggest solar-powered building. He asks if Huang Ming can persuade his nation to turn its back on coal and oil and angle its face toward the sun.

Producer: Alasdair Cross.