I meant in the context of energy conversion. Solid oxide fuel cells produce high grade heat (~800C) that is perfect for conversion via organic rankine cycles (which will convert ~30% of that heat to electricity) or supercritical co2 brayton cycles (~50% heat to electricity with extremely high power densities[0]).

Even without heat capture, SOFCs run at 60-65% efficiency, which is probably good enough.

[0] https://www.ge.com/reports/call-ecomagination-ge-building-co...