Business Green: The guardians of the US government’s economic stimulus treasure chest have dished out further funding for the country’s clean tech sector, selecting 17 projects working on the development of energy efficient light-emitting diodes (LEDs) as the lucky recipients of more than $37m (£22.7m). The awards were announced late last week by the Department of Energy, which predicted that developments in solid-state lighting such as those financed by the economic stimulus funds would reduce …