Connecting 2 composite phase-change materials cycling between solid/ liquid states at different temperatures efficiently creates electricity

https://www.lsu.edu/blog/2026/05/green_energy_final.php

"thermoelectric/ organic solar hits constraints (commercial solar panels struggle to achieve 22% efficiency), bypassed achieving staggering 50% energy conversion efficiency at just 18°F difference, shifting their electrical conductivity/ forcing electron flow through carbon nanotubes or a CO2/ water medium)... requires no fuel which generally eats up 40% to 80% of operating costs for fossil plants, meaning an operator's only expenses are initial hardware fabrication and basic gradient maintenance"