The bar chart compares the energy consumption and expense of operating 16 different items of household equipment. Overall, we can see significant differences in both cost and consumption.
To begin with, there are some common household items which consume relatively little energy. These include an electric blanket (approx. $10 or 100kwh/year), a microwave oven (approx. $15 or 150kwh/year) and a television (approx. $17 or 170kwh/year).
By contrast, devices that might be classified as ‘luxury’ items such as a pool pump or spa are comparatively expensive and energy-intensive, at nearly $125 or 1500kwh/year and around $190 or 2225kwh/year respectively.
It is interesting to note that even among household items normally considered alike, such as a microwave and refrigerator, there are enormous discrepancies in cost and energy use. The former uses only around $15 or 150kwh/year, while the latter consumes at least six times that amount at $90 or 1150kwh/year.
In conclusion, it appears that there is no clear pattern in the relative energy consumption of domestic equipment, although households had better be aware of the high running costs of luxury items such as a pool pump and spa. 
The bar chart compares the  
energy
 consumption and expense of operating 16  
different
  items
 of  
household
 equipment.  
Overall
, we can  
see
 significant differences in both cost and consumption.
To  
begin
 with, there are  
some
 common  
household
  items
 which consume  
relatively
  little
  energy
. These include an electric blanket (approx. $10 or 100kwh/year), a microwave oven (approx. $15 or 150kwh/year) and a television (approx. $17 or 170kwh/year).
By contrast, devices that might  
be classified
 as ‘luxury’  
items
 such as a pool pump or spa are  
comparatively
 expensive and energy-intensive, at  
nearly
 $125 or 1500kwh/year and around $190 or 2225kwh/year  
respectively
.
It is interesting to note that even among  
household
  items
  normally
 considered alike, such as a microwave and refrigerator, there are enormous discrepancies in cost and  
energy
  use
. The former  
uses
  only
 around $15 or 150kwh/year, while the latter consumes at least six times that amount at $90 or 1150kwh/year. 
In conclusion
, it appears that there is no  
clear
 pattern in the relative  
energy
 consumption of domestic equipment, although  
households
 had better be aware of the high running costs of luxury  
items
 such as a pool pump and spa.