No, it is not possible to use solar power or any other means of propulsion to move faster than the speed of light.
According to our current understanding of physics, as described by Albert Einstein's theory of relativity, nothing can travel faster than the speed of light in a vacuum. The speed of light in a vacuum is approximately 299,792,458 meters per second (or about 186,282 miles per second).
The theory of relativity sets an upper limit on the speed at which information, energy, or matter can travel through space. As an object with mass approaches the speed of light, its energy and momentum increase dramatically, making it increasingly difficult to accelerate further. Infinite energy would be required to accelerate an object with mass to the speed of light, and it would take an infinite amount of energy to accelerate it beyond that point.
Solar power or electromagnetic waves, which both travel at the speed of light, cannot be used to propel an object faster than light speed. Any attempt to do so would violate the fundamental principles of relativity.
It is important to note that the theory of relativity has been extensively tested and confirmed by numerous experiments and observations. Until new scientific discoveries and theories emerge, it is currently believed that faster-than-light travel is not possible within the framework of our current understanding of physics.