Inability to deliver product on time to its customers contributed to power conversion manufacturer Power-One Inc. posting a net loss for the first quarter. After announcing April 10 that revenues and earnings fell short of expectations, the Camarillo-based company took steps to fix manufacturing and supply chain problems. “We have already launched initiatives to accelerate the transfer of manufacturing to lower-cost areas and are implementing new sales and operations planning processes,” said Power-One CEO Richard Thompson. For the quarter ending March 30, the company reported a loss of $13.6 million on revenues of $117.8 million. That is a greater loss than the $12.3 million on revenues of $124 million for the same period in 2007. Shares in Power-One closed up at $3.30.