WASHINGTON ( TheStreet) -- The U.S. Senate on Tuesday kicked off three days of hearings to discuss the Clean Energy Jobs and American Power Act, an 821-page bill meant to create green-technology jobs and reduce global warming. The bill has bolstered interest in a hot topic among university research labs, venture capitalists and companies like ExxonMobil ( XOM) and Cisco Systems ( CSCO), which have invested in solar energy and smart grid technology. "Energy economy is the mother of all economies," says Senator John Kerry, a Democrat from Massachusetts, who co-authored the bill with Senator Barbara Boxer, a Democrat from California. By encouraging investments in solar, wind and geothermal power, "we're going to create the equivalent of five or 10 Googles ( GOOG)." Clean energy has been a focus for the Obama administration. The American Recovery and Reinvestment Act of 2009, signed into law in February, put $16.8 billion toward energy efficiency and renewable-power initiatives. On Tuesday, the president announced a $3.4 billion investment in so-called "smart grid" technology, which aims to foster conservation efforts in homes and at the nation's power plants. A hundred private companies in 49 states (all but Alaska) benefited from the grants, the largest of which is a $200 million investment in Florida Power and Light. Before he took the stage last week for a half-hour speech touting the business benefits of clean technology, President Barack Obama met with scientists at the Massachusetts of Technology who have dedicated their lives to the subject. Techies who received face time with the president included Professor Marc Baldo, whose team has developed a device that collects sunlight for solar cells, enabling more energy output with fewer cells (solar cells are expensive); Vladimir Bulovic, who studies quantum-dot lighting, a technology that produces highly-efficient white light (artificial lighting eats 22% of the electricity in the U.S., according to M.I.T.); Angela Belcher and Paula Hammond, who are growing batteries in a lab at room temperature and without any toxic materials; and Alex Slocum, who's developing an offshore renewable energy system that can store wind power.