The Horse 2019/20

Technology & Environment

Task 7 - Real life energy calculation

18. March 2020 Elena-Sale VZ19A (3)

Team: Nina + Elena 

How much kWh does our class (24 students) consume if every student works with her/his laptop during the 3 (hours) T&U lessons? And how much does it cost? 

Try to solve the calculation with these numbers: 

Device: laptop
Power: 60 kWh
Duration: 72h (24 students x 3h) 
Electricity price: 0.22 cents for 1 kWh 

 

Comments (3) -

  • Dominic

    3/18/2020 8:33:44 AM | Reply

    Hello Elena,
    Thank you for this interesting post.
    Sadly, Im too dumb to solve this.

    It looks interesting though.

  • Giorgio

    3/18/2020 8:36:37 AM | Reply


    Our class uses 4320 kwd per day and this cost 950 francs. I think we should spare our electricity. It's very impressiv how expensive 3 lessons are.

    • Nicole Anderegg

      3/18/2020 10:37:56 AM | Reply

      Hi Nina and Elena
      I got the same solution as Giorgio: means 4320 kWh per day for our whole class and costs of 950 francs.
      That's crazy!!

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