Editing Microwave oven (section)

=== Energy consumption ===
In use, microwave ovens can be as low as 50% efficient at converting electricity into microwaves,<ref>{{cite web |last1=Wirfs-Brock |first1=Jordan |last2=Jacobson |first2=Rebecca |date=February 23, 2016 |title=A watched pot: What is the most energy-efficient way to boil water? |website=Inside Energy |url=http://insideenergy.org/2016/02/23/boiling-water-ieq/}}</ref> but energy-efficient models can exceed 64% efficiency.<ref>{{cite web |title=Energy Label- Criteria |website=www.energylabel.org.tw |publisher=Bureau of Energy, Ministry of Economic Affairs, Taiwan |url=https://www.energylabel.org.tw/englishlabel/application_en/efficiency/upt.aspx?Cid=48 |access-date=March 7, 2022 |language=zh-Hant-TW}}</ref> Stovetop cooking is 40–90% efficient, depending on the type of appliance used.<ref>{{cite web |title=Level-up your cooking game with an energy-efficient stovetop |date=August 24, 2020 |url=https://leap-va.org/energy-news/level-up-your-cooking-game-with-an-energy-efficient-stovetop/ |access-date=December 23, 2022 |archive-date=December 23, 2022 |archive-url=https://web.archive.org/web/20221223161204/https://leap-va.org/energy-news/level-up-your-cooking-game-with-an-energy-efficient-stovetop/ |url-status=dead }}</ref>

Because they are used fairly infrequently, the average residential microwave oven consumes only 72&nbsp;kWh per year.<ref>{{cite journal |last1=Gallego-Schmid |first1=Alejandro |last2=Mendoza |first2=Joan Manuel F. |last3=Azapagic |first3=Adisa |title=Environmental assessment of microwaves and the effect of European energy efficiency and waste management legislation |journal=Science of the Total Environment |date=March 2018 |volume=618 |pages=487–499 |doi=10.1016/j.scitotenv.2017.11.064 |pmid=29145100 |bibcode=2018ScTEn.618..487G |url=https://www.research.manchester.ac.uk/portal/en/publications/environmental-assessment-of-microwaves-and-the-effect-of-european-energy-efficiency-and-waste-management-legislation(ac7e65c2-c53e-4d0f-9bc8-b03ceb65541f).html |access-date=}}</ref> Globally, microwave ovens used an estimated 77&nbsp;TWh per year in 2018, or 0.3% of global electricity generation.<ref>{{cite journal |last1=Detz |first1=Remko J. |last2=van der Zwaan |first2=Bob |title=Surfing the microwave oven learning curve |journal=Journal of Cleaner Production |date=October 20, 2020 |volume=271 |pages=122278 |doi=10.1016/j.jclepro.2020.122278 |s2cid=225872878 |access-date=|doi-access=free |bibcode=2020JCPro.27122278D }}</ref>

A 2000 study by [[Lawrence Berkeley National Laboratory]] found that the average microwave drew almost 3 watts of [[standby power]] when not being used,<ref>{{cite book |last1=Ross |first1=J.P. |last2=Meier |first2=Alan |title=Energy Efficiency in Household Appliances and Lighting |chapter=Whole-House Measurements of Standby Power Consumption |year=2001 |pages=278–285 |doi=10.1007/978-3-642-56531-1_33 |isbn=978-3-540-41482-7 |chapter-url=https://digital.library.unt.edu/ark:/67531/metadc743210/ }}</ref> which would total approximately 26&nbsp;kWh per year. New efficiency standards imposed in 2016 by the [[United States Department of Energy]] require less than 1&nbsp;watt, or approximately 9&nbsp;kWh per year, of standby power for most types of microwave ovens.<ref>{{cite web |last=de&nbsp;Laski |first=Andrew |date=June 3, 2013 |title=New standards cut "vampire" energy waste |website=Appliance Standards Awareness Project (ASAP) |url=https://appliance-standards.org/blog/new-standards-cut-vampire-energy-waste |access-date=October 4, 2021}}</ref>