Fuel cells have the following advantages over conventional generating systems : low environmental pollution ; highly efficient power generation ; diversity of fuels ; reusability of exhaust heat ; modularity ; faster installation . recent worldwide clean - air movements have greatly increased the importance of fuel cell development 和传统发电方式相比,燃料电池发电具有以下几个显著的优点:良好的环境效益;发电效率高;可用燃料的多样性;余热的再利用;安装简便可实现模块化操作运行。