I mean, heh, wouldn't that solve
the world's ENERGY crisis?
The Big Bang Theory Season 6, Episode 22
exploring ways
to store kinetic ENERGY.
The Big Bang Theory Season 11, Episode 13
No, actually.
I don't need his negative ENERGY
The Big Bang Theory Season 11, Episode 10
Yeah, but research into dark ENERGY
proved...
The Big Bang Theory Season 3, Episode 1
Yeah, Department of Energy said
our regular space is kind of a hot zone.
The Big Bang Theory Season 1, Episode 5