What is phantom energy?

Answer 1

These devices contribute to the energy-wasting phenomenon called "phantom power," or vampire energy. Simply put, this is the power that is used when electronic devices draw energy from the grid into your home just by being plugged in, when you aren't looking and you aren't using them.

Many electronic devices continue to draw power even when not in use. Energy drawn by the standby mode sometimes is referred to as a "phantom load." An estimated 50 percent of the energy used by an electronic device is drawn while the device is not in use, making phantom loads responsible for 4 to 7 percent of your total electricity use. Phantom loads can be reduced in many ways, some of them for little cost or free.

Answer 2

Phantom energy is a theoretical form of dark energy that leads to the acceleration of the expansion of the universe. Unlike other forms of dark energy, phantom energy has a negative pressure that increases over time, eventually leading to the "Big Rip" scenario where the universe would be torn apart.