when builders construct new homes, they should install solar panels and other passive solar devices and as many energy-saving appliances as possible. is this complex or compound complex?

The energy conservation through energy efficiency in the building has acquired prime importance all over the world. The four main aspects for energy efficiency in a building include first and foremost the nearly zero energy passive building design before actual construction, secondly the usage of low energy building materials during its construction, thirdly use of energy-efficient equipment for low operational energy requirement, and lastly integration of renewable energy technologies for various applications. These aspects have been discussed along with their economics and environmental impacts briefly in this paper.

The first aspect is related to the prior design before the construction of solar passive building techniques adapted all over the world not only for passive heating/cooling but also for daylighting the building.  The second is utilizing the low embodied energy building materials for building construction. The third aspect deals with operational energy conservation using energy-efficient equipment in the building. Lastly, the building has to include the utility of integrated renewable systems for hot water heating, solar photovoltaic electrification, etc.

nobody can deny that cars are the most used means of transport all over the world. however owing a car could have some disadvantages. first of all, having a car on your own allows you to go everywhere without depending on timetables. moreover, you can use it whenever you need it no matter the time or the climate conditions. furthermore, if you have a car, you would not have to wait for nobody to share it when going to somewhere. nevertheless, one major disadvantages of owing a car is the fact that fuel is very expensive nowadays so that not everyone can afford it. in addition, you have to pay insurance to be protected by legal conditions. apart from this, the person who owns a car always has to maintain the car and repair any mechanical problem which could costs a huge amount of money. what is more, if you have to travel long distances, and you do not like driving, one probably would be exhausted and irritated due to driving for a long time. besides, cars cause environmental pollution. to sum up, owing a car means that you have more freedom to travel whenever and wherever people want to, however the car maintenance could be a very expensive issue that can have bad consequences at your economy.

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