The Departments of Energy and Commerce, in collaboration with China's State Energy Bureau, hosted the conference at which Locke and Chu spoke, Xinhua news service reports.
Locke, on his third visit to China, said that "the United States and China have the power and indeed an obligation to alter history for the benefit of all people on the planet."
Chu, who is in Asia until Wednesday the 18th, expressed his desire last week to reach "a strong international agreement that puts the world on a pathway to a clean energy future."
And after President Obama's recent visit to China, the White House released a statement outlining seven green energy projects on which the U.S. and China will collaborate. The projects include a Clean Energy Research Center, jointly funded by the two nations to develop green energy; an agreement to collaborate on electric vehicle standards; and an Energy Efficiency Action Plan that will establish efficiency policies.