kilowatt-hour
noun
kilo·watt-hour
ˈki-lə-ˌwät-ˈau̇(-ə)r 
ˈkē-lə-
: a unit of work or energy equal to that expended by one kilowatt in one hour or to 3.6 million joules
Examples of kilowatt-hour in a Sentence
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At over 19 cents per kilowatt-hour, the current price of electricity is the highest on record — going back almost 50 years.
—
Claire Malon, Chicago Tribune, 16 May 2026
Ember notes that when China crossed 1,500 kilowatt-hours of electricity use per person in 2004, coal generation was about ten times cheaper than early solar photovoltaics, and over the following decade coal supplied nearly 70% of the growth in China’s electricity generation.
—Ingmar Rentzhog, Forbes.com, 15 May 2026
On carbon, nuclear is among the lowest-emission energy sources, emitting roughly 12 grams of CO₂-equivalent per kilowatt-hour and rivaling wind.
—Catherina Gioino, Fortune, 15 May 2026
After Hurricanes Debby, Helene and Milton struck in 2024, Duke was approved to charge residential customers $33 per 1,000 kilowatt-hours starting in March 2025.
—News Service Of Florida, The Orlando Sentinel, 6 May 2026
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Claire Malon, Chicago Tribune, 16 May 2026
Ember notes that when China crossed 1,500 kilowatt-hours of electricity use per person in 2004, coal generation was about ten times cheaper than early solar photovoltaics, and over the following decade coal supplied nearly 70% of the growth in China’s electricity generation.
—Ingmar Rentzhog, Forbes.com, 15 May 2026
On carbon, nuclear is among the lowest-emission energy sources, emitting roughly 12 grams of CO₂-equivalent per kilowatt-hour and rivaling wind.
—Catherina Gioino, Fortune, 15 May 2026
After Hurricanes Debby, Helene and Milton struck in 2024, Duke was approved to charge residential customers $33 per 1,000 kilowatt-hours starting in March 2025.
—News Service Of Florida, The Orlando Sentinel, 6 May 2026
See All Example Sentences for kilowatt-hour
Cite this Entry
“Kilowatt-hour.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/kilowatt-hour. Accessed 23 May. 2026.
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