To prove that their innovation works, the team ran several tests. In a solar simulator, it achieved a photothermal efficiency of 91.27%, meaning almost all the light hitting it became usable heat.
To prove that their innovation works, the team ran several tests. In a solar simulator, it achieved a photothermal efficiency of 91.27%, meaning almost all the light hitting it became usable heat.
The problem is that turning heat to electricity using thermoelectric generators is hugely ineffecient. And there wouldn’t be enough heat produced to create steam for steam turbines.
You are right, it would be nearly useless to generate electricity, but it could be use to save some. IIRC, heating of water and the home account for roughly 20% of power consumption. Harnessing that heat could help supplement those systems, thus saving a little electricity.