Molten Carbonate (MCFC) and Solid Oxide Fuel Cells (SOFC) are also used for combined heat and power generation and have electrical energy efficiences around 60%.
熔融碳酸盐（MCFC）和固体氧化物燃料电池（SOFC）也用于供热和发电的聯產，并有电气能源约60%的效率。