电能研究所正在研究这种方法的可行性，作为一种为现存电站减少燃料消耗和排放的方法。
The Electric Power Research Institute, based in Palo Alto, is studying the feasibility of this approach as a means of reducing fuel costs and emissions at existing power stations.
按照这项新法规，截止2015年，现存锅炉必须由6号燃料油换成4号低硫型燃料油或与之相当的较为清洁的燃料。
Under the new rule, by 2015, existing boilers must switch from No. 6 oil to a low-sulfur version of the No. 4 heating oil or to an equivalent cleaner fuel.
分析了地下工程对能源系统的特殊需求和现存问题，指出燃料电池技术在地下工程中的应用优势和发展前景。
The application advantages and future prospect of fuel cell technology in underground engineering is described, by analyzing the special needs and present problems of the energy system in it.
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