Global warming and climate change are the rising issue last couple of decades. Buildings residential and commercial are one of the major contributor to energy consumption. If we use more energy and these energy produced through thermal power plant then carbon emissions tools place so now these days Net zero energy building are our necessity.
According to the US Department of Energy (DoE), a zero-energy building was defined as the building that produces enough renewable energy to meet its own annual energy consumption requirements
Role of architect and engineer to achieved a NZEB:-
Architect should pay attention of few things such as the direction of the roof which should the facing of sun so roof can capture maximum lights, wall of the building should we like insulation so the energy loss will be minimised, and the room should air tight. Location of the building is also very important so we can take the benefits of some renewable energy sources such as wind energy, geothermal energy,solar energy etc.
Factors to consider for on site renewable energy generation:-
*Building orientation
*Glazing area, exposure, and shading
*Heat island reduction
*Lighting systems and capacities
*Temperatures, humidity, and relative humidity levels
*Landscaping
*Natural resources.
Reduce the energy consumption:-
Using the energy efficient appliances such as LED,and the location and direction of the building and room should like this that maximum natural light enters into the room so no need the artificial lights.
For the kitchen use energy efficient and renewable pots such as solar cooker to boil the rice.
For the kitchen use solar water heater etc.
Similarly used laptop, tablet which are auto shutdown features which save the energy.
Environmental, Human and economic factors:-
Using the renewal energy maximum we can reduce the large amount of carbon emissions, so in these type of buildings pay attention to geothermal, wind and solar energy generation.
We should use those renewable sources which cost effective means within the budget so utilise the those resources which are naturally available and are cheaper.
Design of buildings should like those there will be no pollution and the refresh air supply is available. There should be facility of multi grid system because if we produce surplus energy so can supply to grid.
Innovative features for NZEB:-
In future we have to work towards the make the very efficient solar panel which can produce higher electricity and the cost of the PV cell should be economically so the research work should in the area of renewable energy so we can make cheaper and efficient solar panel.in other hands design should improve so we can calculate the requirement of the energy efficiently and reduce the consumption of electricity using insulating walls , electrical efficient appliances.
The aim of this reading assignment is to give you the opportunity to learn about net-zero energy
buildings (NZEBs). NZEBS are buildings that produce (at least) as much energy as they con-
sume over a one year period. NZEBs integrate various forms of on-site renewable energy gener-
ation (e.g., solar, geothermal) with energy efficient building system components (e.g., heat-
ing/cooling, lighting, envelopes, electrical appliances). NZEBS are the future of the building sec-
tor and are becoming more common. The papers listed below are published in the journal of the
American Society of Heating, Refrigerating, and Air Conditioning Engineers (ASHRAE) - the
leading international organization for research on high performance buildings. Each paper is a
case study on an actual NZEB. PDF copies of each paper are available in Canvas.
