It is cheaper to boil large quantities of water in the microwave than in an electric kettle. This has been reported Mirror With reference to the staff of the Center for Sustainable Energy and the National Renewable Energy Laboratory.
“It is cheaper to use a microwave oven to heat large volumes of water and a kettle for a glass of boiling water,” the experts said.
If the kettle runs for 10 minutes, it will cost the owner 12.5p, according to the Center for Sustainable Energy. As for the microwave oven, its ten-minute use will cost several times cheaper – 2-6 pence. Accordingly, it is cheaper to heat water in large quantities in the microwave, albeit for a longer period of time.
A completely different situation develops with boiling a glass of water. Since the kettle will do this job twice as fast, it will cost less.
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