Solar roof tile/ heat pump integration generates electricity and heat while reducing energy demand as much as 20%

https://interestingengineering.com/energy/solar-roof-tile-heat-pump

"Paxos Solar glass roof tiles glued to rails, much lighter, half installation time... connected to heat pump... 25% increased heat pump’s performance coefficient, 20% less energy 1 year need compared to device not getting additional heat from solar tiles... back-contact/ matte surface cells enable angled light capture, 190 W in about 10 X 10' roof space, tiles can be made to any size... sun heats air under modules, rises toward roof ridge, collected in pipe... 1.8°F increase in air temperature switches pipe fan on, air pushed into heat pump"