Reuters: Mitsubishi Corp said on Thursday it has signed a memorandum of understanding with Brueni’s Energy Ministry to build and operate a test solar power plant in the western part of the sultanate in a three-year project starting in 2010. Mitsubishi, Japan’s biggest trading company, will transfer needed technology, educate local staff and shoulder the project’s total cost, estimated at 1.5 billion yen (US$13.7 million), a company spokesman said. The tiny but wealthy nation on Borneo …