| unclebilly |
02-21-2021 05:37 PM |
Quote:
Originally Posted by red-beard
(Post 11233927)
Fuel cells are around 94% efficient while the best practical combined cycle is around 55%.
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Maximum theoretical efficiency of a fuel cell is 80% at the cell level. The balance of plant (power conditioning, fans, preheating, humidification, etc.) is what kills it further.
The key is economies of scale with larger systems. On a small 5kw distributed generation system the best we could do was 30-40% overall efficiency and it was really load specific.
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