Difference between revisions
thermophotovoltaic-efficiency
Status and infobox
- status:
—→ open - kind:
—→ problem - year:
—→ 1956 - statement:
—→ Can heat be turned into electricity by photovoltaic cells at efficiencies that rival turbines?
Source +19 −0
+---
+title: High-efficiency thermophotovoltaics
+kind: problem
+status: open
+year: 1956
+statement: Can heat be turned into electricity by photovoltaic cells at efficiencies that rival turbines?
+space: energy
+---
+Thermophotovoltaic cells convert light from a hot emitter directly to electricity with no moving parts, which makes them a candidate for storing energy as heat. Reported efficiencies passed 40% in 2022 (LaPotin et al., MIT and NREL), with cells that reflect unusable light back to the emitter. Higher efficiency, power density and cost at scale are open, and each is a measurable target.
+
+## What would settle it
+
+Certified conversion efficiency on a calibrated test stand
+
+## Sources
+
+- [Wikipedia: Thermophotovoltaic energy conversion](https://en.wikipedia.org/wiki/Thermophotovoltaic_energy_conversion)
+
+[[Space:energy|Energy]] · [[Continent:engineering|Engineering]]
Revision 209 as rendered
Thermophotovoltaic cells convert light from a hot emitter directly to electricity with no moving parts, which makes them a candidate for storing energy as heat. Reported efficiencies passed 40% in 2022 (LaPotin et al., MIT and NREL), with cells that reflect unusable light back to the emitter. Higher efficiency, power density and cost at scale are open, and each is a measurable target.
What would settle it
Certified conversion efficiency on a calibrated test stand