There is a lot of buzz in the data center industry regarding Bloom Energy and their fuel cell server. The debate is all about how much of a contribution they make to creating a green data center. The principle behind the operation of the fuel cell is the fact that it uses fuel with hydrogen and blends it with oxygen and steam to produce water, heat, electricity and a small amount of carbon dioxide.
The carbon dioxide content is there especially when the fuel cell uses natural gas. Bloom’s ES5700 Energy Server produces 773 pounds of carbon dioxide for every megawatt hour of natural gas.
The scenario will get even better when the fuel cells are made to use biogas produced from rotting organic matter. But feeding it pure hydrogen to get the fuel cell to work in carbon free mode is the question. It can be carbon neutral with biogas and carbon free with pure hydrogen.
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