different between negawatt vs megawatt

English

Etymology

Coined by Amory Lovins, chairman of the Rocky Mountain Institute as a contraction of negative watt on the model of similar compounds like megawatt.

Pronunciation

• (UK) IPA^(key): /?n??.?.w?t/
• (US) IPA^(key): /?n??.?.w?t/

Noun

negawatt (plural negawatts)

1. A unit of saved energy.
   • 2000, Barbara Whitaker, "A Lightning Rod in California", New York Times, 24 December,

     And he has suggested ways to help consumers buy the so-called time-of-use-meters […] so they can benefit from using energy at off-peak times and through "negawatts," or credits for not using power.

   • 2008, Amory B. Lovins, "The Case For Efficiency", Forbes, 7 July,

     Three-fourths of U.S. electricity--69% of which is used in buildings, nearly all the rest in industry--can be saved for less than the price of just running a coal or nuclear plant. This "negawatt" potential is not just in smarter motors, lights, appliances, etc., but even more in their larger systems.

Translations

English

Alternative forms

• mega-watt

Etymology

mega- +? watt

Noun

megawatt (plural megawatts)

1. One million (1 000 000) watts, abbreviated as MW.

Usage notes

• Attributive use modifying smile or similar nouns are due to watt as measure of the power used by a lightbulb, and hence of its brilliance, by analogy to smiles and the like.

Derived terms

• megawattage
• megawatt-hour

Translations

Czech

Etymology

mega- +? watt

Noun

megawatt m

1. megawatt

Further reading

• megawatt in Kartotéka Novo?eského lexikálního archivu
• megawatt in Slovník spisovného jazyka ?eského, 1960–1971, 1989

Danish

Etymology

mega- +? watt

Noun

megawatt

1. megawatt

Further reading

• “megawatt” in Den Danske Ordbog

Dutch

Etymology

mega- +? watt

Pronunciation

Noun

megawatt

1. megawatt

Italian

Etymology

Borrowed from English megawatt, equivalent to mega- +? watt.

Noun

megawatt m (invariable)

1. megawatt

Further reading

• megawatt in Dizionario Italiano Olivetti

Romanian

Etymology

mega- +? watt

Noun

megawatt

1. megawatt

Further reading

• megawatt in DEX online - Dic?ionare ale limbii române (Dictionaries of the Romanian language)

Slovak

Etymology

mega- +? watt

Noun

megawatt m

1. megawatt

Further reading

• megawatt in Slovak dictionaries at slovnik.juls.savba.sk

Swedish

Etymology

mega- +? watt

Noun

megawatt

1. megawatt

Further reading

• megawatt in Svenska Akademiens ordbok (SAOB)