A British subsidiary of...RWE AG may convert an oil-fired power plant in...England to burn palm oil after it evaluates the costs and technical issues. The company has conducted trials...Leon Flexman, a spokeswoman for RWE's Npower unit, said...RWE might also be eligible to receive subsidies for switching to palm oil at the plant. RWE will also consider the environmental impact of producing palm oil, Flexman said. The company doesn't want to use fuel produced by clearing rain forest, he said.