Sunlight is composed of over 50% infrared light from an energy perspective.
"Sunlight is over 50% infrared from an energy perspective, and that's going to be the biggest difference that we see." (said at 0:01:27)
No published record matching the specific claim that sunlight is composed of over 50% infrared light from an energy perspective was located; this does not prove the claim false.
corroborated by web sources
Standard solar irradiance measurements, such as those from the National Renewable Energy Laboratory and ASTM International, show that infrared radiation accounts for approximately 52% to 55% of the total solar energy reaching Earth's surface. Visible light makes up roughly 42% to 44%, while ultraviolet radiation accounts for the remaining 3% to 5%.