However, there is one place where energy usage is surging. That place is one of the most popular places in every Japanese home. The bathroom. Specifically it is the Japanese toilets.
Japanese toilets have progressed from basic human waste recepticles before 1980 to today where they have features such as heated seats, heated water to wash your bottom and high end toilets that sense when someone enters or leaves the bathroom, raising and lowering their lids accordingly.
One of the features, the heated seat, is popular due to Japanese homes being pretty cold in the winter. I know first hand the joy of sitting on a heated toilet seat in a frigid Japanese home.
These toilets are not cheap. The luxury models can go for more then $4,000. The Japanese government is struggling to meet obligations under the Kyoto global warming treaty and they have studied the issue of energy consumption in the Japanese household, specifically the toilets.
However, the government has found it difficult to get the average Japanese citizen to give up there comfy toilets. So the government has instead worked with toilet manufacturers to help reduce energy consumption.
So, like many things in Japan, technological innovation may be the answer. Toto, Japan's largest toilet producer, and other manufacturers have invented the intelligent toilet. A newly installed intelligent toilet after a few days in a household memorizes when and how family members do their business. Then, with history as its guide, the toilet intermittently heats up its seat and warms its water.
When no one is likely to be in need, the toilet is cool.
Here is a typical Japanese toilet with a control panel mounted on its right side.