"Radiant energy is electromagnetic energy that travels in transverse waves (light, x-rays, gamma and radio waves)."
https://polarpedia.eu/en/kinetic-energy/
"Our Sun emits electromagnetic energy and that energy showers down on us throughout the whole 24 hours, and if a energy receiving device (an antenna) can easily be built to harness and use this power it will not require devices for storing energy as would be necessary with devices using wind, tide or sunlight."
https://www.apparentlyapparel.com/news/nikola-teslas-wireless-electric-automobile-explained
"The earth's magnetosphere is normally invisible because the dominant hydrogen and helium ions coming in the solar wind do not scatter light in visible wavelengths"
https://plasmauniverse.info/plasma_space.html
"The microwave power will be captured with antennas and converted into electricity"
https://electrical-engineering-portal.com/tesla-wireless-power-transmission-wpt
"In 1901 Nikola Tesla was one the first to identify “radiant energy.” Tesla says that the source of this energy is our Sun."
https://www.nuenergy.org/nikola-tesla-radiant-energy-system/