Can a grow light sustain a solar panel with extra power?

Question

If i place a grow light over a higher output solarpanel can i create enough energy to sustain the light and create excess electric?

Answer 1

A basic law of physics is that of the Conservation of Energy. Energy is not created, nor is it lost. However, it may change form.

The grow light converts electrical energy into light, but some energy is wasted as heat. If you direct the light onto a solar panel, some of the energy is converted into electricity, but more energy is again wasted as heat. Because heat is wasted in this system, it cannot be self-sustaining.

Perhaps you have a misconception about solar panels. The electrical energy created by a solar panel is in proportion to the energy put into it in the form of light. A solar panel in direct sunlight puts out a high level of energy; a solar panel under a full moon puts out much less energy. A solar panel in a dark cave puts out no energy at all.

There is no system that is 100% efficient.

Answer 2

No. Essentially what you've deduced is a perpetual motion machine, in the electrical sense. This violates one of the fundamental laws of energy not being able to be created or destroyed, but merely transformed.

Your solar panel would produce a percentage of energy from the light to electricity, far below the total output of the lamp. Also, parasitic resistances would consume power and give off minute amounts of heat. Shortly after removing the exterior source of energy to your contraption, the bulb from the light would dim and go out, as the whole system would become energy starved.

Answer 3

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