Which wavelengths of sunlight care the most energy

Ultraviolet wavelength have the highest energy.

Explanation:

Ultraviolet radiation is an electromagnetic radiation. Its wavelength is 10 nanometers to 400 nanometers. It contribute about 10 percent of sunlight radiation. Wavelength of visible light starts from 400 nanometers so wavelength of Ultraviolet radiation is shorter than visible light but longer than X rays because X rays has a wavelength between 0.01 to 10 nanometers.