The year is 3598, the first unobtanium reactor is made.
"Xrjuil jlok!"
"Aqzunipom hjulkum ut vrstren?"
"Boil water"
"FUUUUUUUCK"
China’s solar power plant in Dunhuang uses around 12,000 mirrors to focus sunlight onto a central tower, heating molten salt to extreme temperatures.
That heat is stored and used to generate electricity on demand, including after sunset.