He's a billionaire, a philanthropist who made his fortune in the United States with his caffeine-based energy drink, 5-Hour Energy. He's reportedly worth $4 billion and says he has more money than he needs. He has pledged 99 per cent of his fortune to finding solutions that could change the world. Manoj Bhargava is in India, showcasing a prototype of an electricity-generating bicycle. There is no utility bill, no fuel cost and no pollution. One hour of pedalling, he claims, can meet a rural Indian household's electricity needs for 24 hours.