Other forms: powerhouses
A powerhouse is a person or group with great energy and success. An economic powerhouse, a powerhouse of a performance, a real powerhouse.
The literal building is a generating station, and the figurative use borrows exactly that: a powerhouse produces rather than merely holds power. It is used of economies, teams and individuals alike, and it is always praise.
1nounpowerhouseA person or group with great energy and success.
“The small country has become an economic powerhouse in the last twenty years.”
powerhouse is a force.
Power plus house, first the building housing a generator.
From power + house.
Etymology from Wiktionary, CC BY-SA