The reason is possible because that the developing countries' householder chooses often to turn on their heaters or air conditions or fans long time in their houses when they are staying long time in their houses and their houses space occupancy sizes are very large, it will bring the electricity energy to be used more to these developing countries' householders' large space occupancy size characteristic houses. It means that the electricity fee will be also increased due to they often turn on heaters or air conditions or fans long time to keep their indoor temperature to be more cooler in summer or more warmer in winter. So, it seems that the developing countries' householders are living in the house whose space occupancy have very large size characteristics and more than two rooms house characteristics in the developing countries as above. Then, they won't often choose to turn on heaters or air conditions or fans long time to keep more cooler or warmer feeling in their house whole indoor space occupancy environment when they are often staying at home long time. Their lifestyle of living comfortable feeling are lesser than the developed countries householders. Consequently, their lesser cooling or warming comfortable demand of living lifestyle factor will change their attitudes to use air conditions or fans or heaters turning on time in order to limit heaters or air conditions or fans turning on time to be shorter than the developed countries houeholders' heaters or air conditions or fans turning on time at homes. Due to the long time turnong on air conditions, fans, heaters at the developing countries' householders' homes, it will cause to spend much electricity energy to lead electricity fee charges to be raised to the developing countries' householders ' homes when they are often staying at homes in summer or winter weather. Hence, the house space occupancy large size characteristics ought not influence the developing countries householders choose to turn on air conditions, fans or heaters long time in order to let them to feel more cooler or warmer at homes in summer or winter weather. So, the developing countries' house space occupancy large size characteristics householders won't be more acceptable to pay higher electricity energy fee when they are staying at homes at summer or winter weather. Due to they do not often choose to turn on heaters, air conditions or fans long time during they are staying at homes. Otherwise, the developed countries, e.g. UK, UK, France, Germany, Swiss, Singapore, Italy etc. countries. In general, these developed countries' householders' living lifestyle quality needs are higher than the developing countries. So, when the summer or winter weather is coming, if the temperature is extreme cold, e.g. below than 0 degree or it is extreme hot, e.g. higher than 30 degee. Then these developed countries' householders will easy accept to turn on air conditions or fans or heaters long time at home in order to keep their appartment in door temperature to be more cooler in extreme hot in door environment or more warmer in extreme cold in door environment when these developed countries' householders are often staying at homes long time at night after their day time working time or schooling time. Because these developed counties' householders' quality of living lifestyle needs or demands are higher than the developing countries' householders. So, they won't consider that they will pay more electricity fee, due to they often turn on air conditions, fans or heaters long time to let them to feel more comfortable in cooler or warmer indoor large size space occupancy environment.
