NEW YORK/SAN FRANCISCO: The US Energy Department approved $4.75 billion in loan guarantees for four solar energy projects on the final day of a 2005 programme funded by the stimulus act. Projects being developed by ProLogis, SunPower, and First Solar won US support, and First Solar and SunPower immediately sold theirs. The guarantees come at the end of a month in which the Energy Department's programme became the focal point ...