From the circle, we can see that space heating takes up the most energy consumption.
It accounts for 48% of the total amount of energy.
The second largest portion of energy (18%)is used for lighting, cooking
and running appliances.This is followed by water heating, which expand 14% of the total.
Refrigeration almost ranks the same as water heating,
which is 13% of the whole amount of energy use.Among these energy conservation items,
space cooling comes up to the lowest 7% of the whole.
This circle shows that the largest portion of energy is spent on space heating.
This put us into deep thinking. If we can find ways other than
the present regular energy sources to supply family need for energy, then we can save up
the traditional energy sources, such as coal, electricity, wood, ect,
solar energy might be a good answer to this problem.
Therefore, more efforts should be made, and more money should be spent on the research
in this area. More people should be encouraged and supported to work on this issue.
Maybe someday, we can really enable us to enjoy the comforts of solar energy.