Question

You've determined that a home uses about 7500 kWh of
electricity per year using a homeowner's utility bill. Upon
completion of an energy audit of their home you find that
there are 14 lights in the house using 60 W incandescent
bulbs. Through your discussion with the homeowner you
determine that the lights are on for about 4 hours per
day.
You also observe a second refrigerator in the basement
that is plugged in and running during the audit, but upon
talking with the homeowner you find that they are not
really using it and are thinking of getting rid of it. You
look up the refrigerator model online and find that it is
estimated to use 190 kWh of energy per year.
You recommend to the homeowner that they should
consider changing those 14 incandescent light bulbs to
equivalent 9 W LED bulbs, and that they follow through
on their plan to get rid of the second refrigerator. What
would be the new annual energy consumption for the
household be if they made your suggested changes?​

Answer 1

Explanation:

दिस इज वेरी लार्ज क्वेश्चन आई एम नॉट अंडरस्टैंड