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brown energy

Energy that is derived from traditional resources, such as coal, oil, natural gas, and nuclear power, which are seen by some as environmentally unfriendly. If we're going to keep our planet clean, we need to move away from brown energy and invest in renewable resources, such as wind and solar.
See also: brown, energy

bundle of energy

Someone who is exceptionally energetic, alert, productive, or hyperactive. My kids are always such bundles of energy first thing in the morning. Susan is a bundle of energy! She's already finished two of her essays today and is beginning to work on a third.
See also: bundle, energy, of

a waste of energy

A useless, vain, or redundant effort or action. It turns out the boss had already chosen a direction for the project, so my presentation was a complete waste of energy.
See also: energy, of, waste
References in classic literature ?
If he possesses an unusual share of native energy, or the enervating magic of place do not operate too long upon him, his forfeited powers may be redeemable.
Thus the energy developed by good fighting men is as the momentum of a round stone rolled down a mountain thousands of feet in height.
he gave one last thought to his master; and began to struggle with all the energy of despair, feeling himself the while drawn along, but not toward the bottom of the lake, as is the habit of the crocodile when about to devour its prey, but toward the surface.
Great energy of character was needed to enable him thus to sustain the situation with philosophy.
He saw in him a remarkable, clear-thinking man of vast intellect who by his energy and persistence had attained power, which he was using solely for the welfare of Russia.
With new courage and energy they now trudged forward and after a time came to a place where the road cut through a low hill, leaving high banks on either side of it.
But he did not have the energy to consider the lie.
Any boy who took employment with any firm could, by thrift, energy, and sobriety, learn the business and rise from position to position until he was taken in as a junior partner.
Sometimes I took my vehement energy of feeling for a resolute will, and over-estimated my powers; sometimes, at the mere sight of some trifling obstacle with which I was about to come into collision, I was far more cast down than I ought to have been.
I grasped my whip with more determined energy than before - but still forbore to raise it, and rode on in silence, waiting for some more tangible cause of offence, before I opened the floodgates of my soul and poured out the dammed-up fury that was foaming and swelling within.
The remainder was credited to her and debited to somebody else's account in the ledger kept by G-- Oh, primal energy, you say, Reverend Doctor--Well then, in the Ledger of Primal Energy.
Similarly, you may sometimes find on a mountain-side a large rock poised so delicately that a touch will set it crashing down into the valley, while the rocks all round are so firm that only a considerable force can dislodge them What is analogous in these two cases is the existence of a great store of energy in unstable equilibrium ready to burst into violent motion by the addition of a very slight disturbance.
Of pluck--that is, energy and courage--Vronsky did not merely feel that he had enough; what was of far more importance, he was firmly convinced that no one in the world could have more of this "pluck" than he had.
Freed from the suspense and the anxiety which had tried her so sorely and hung over her so long, Marian's spirits rallied, and her natural energy of character began to assert itself again, with something, if not all, of the freedom and the vigour of former times.
Richard Swiveller, who had been looking over the rim of the tumbler while his companion addressed the foregoing remarks to him with great energy and earnestness of manner, no sooner heard these words than he evinced the utmost consternation, and with difficulty ejaculated the monosyllable: