Bloom Energy Announces Hydrogen Solid Oxide Fuel Cell with 60% Electrical Efficiency and 90% High Temperature Combined Heat and Power Efficiency.
Bloom Energy (NYSE:BE), a world leader in solid oxide fuel cell (SOFC) technology, is now offering the Bloom Energy Server™ power solution with ~60% electrical efficiency* while using 100% hydrogen 2 .
Bloom engineers achieved the milestone efficiency at the company’s research and development facility in Fremont, California.
Ravi Prasher, chief technology officer for Bloom Energy, said;
With our world-leading efficiency 3 electrolyzer and the Bloom Energy fuel cell technology capable of running on natural gas and hydrogen blends, this achievement builds on our leadership position in the hydrogen industry.
Carbon-free hydrogen fuel cell for electricity production enables 24 X 7 clean power in conjunction with other renewable electricity sources 4 . As energy intensive industries like data centers and advanced manufacturing continue to place increased electricity demand on the grid, efficient distributed electricity production from carbon-free hydrogen is a vital tool to reduce both carbon emissions and strain on the congested grid.
Carbon-free hydrogen is generally more expensive than traditional sources of fuel, such as natural gas or grey hydrogen 5 , making high electrical efficiency critical to achieving low cost electricity. Bloom’s breakthrough electrical efficiency at 60% will enable wider adoption of hydrogen as a fuel source. Blending hydrogen with natural gas provides for a reduction in CO 2 emissions today while allowing for a future proof, fuel flexible, path as the hydrogen economy continues to advance across numerous sectors.
SOFC technology is uniquely placed in the energy transition through the production of electricity by direct electrochemical conversion as compared to conventional combustion technologies, such as turbines and reciprocating engines. This leads to significantly higher electric efficiency 6 and negligible environmental pollutants 7 as compared to the combustion technologies as shown in the table below.
In addition to offering unmatched electrical efficiency, Bloom’s high temperature SOFC technology is also Combined Heat and Power (CHP) enabled, allowing customers to utilize high temperature heat. This is in contrast to other fuel cell technologies 8 which can only provide low temperature heat. Customers can use this high temperature heat in numerous applications, including running absorption chillers, industrial processes, and building heating. When fully utilized, this allows for a combined 90% efficiency, creating an additional value stream for the customer and accelerating the adoption of hydrogen.
The table below highlights the advantages of Bloom’s offering over traditional systems and other fuel cell technologies using hydrogen.
| BE SOFC | Other Fuel CellsPEM/PAFC | Combustion Technologies | |
| Electrical Efficiency at full load 1 | High | Medium | Low |
| Combined Heat and Power Efficiency | High | Medium | Medium |
| Heat Output Temperature | High | Low | High |
| Air Pollutants | Negligible | Negligible | High |
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Bloom Energy Announces Hydrogen Solid Oxide Fuel Cell with 60% Electrical Efficiency and 90% High Temperature Combined Heat and Power Efficiency. source
