This document discusses the use of net zero energy buildings (NZEBs) to achieve sustainability goals and reduce climate change. It defines a NZEB as a building that produces as much renewable energy as it consumes annually. The goals of NZEBs are to contribute less greenhouse gases than conventional buildings through optimized design, high efficiency technologies, and on-site renewable energy generation. The document outlines various definitions of net zero energy and reviews literature on past NZEB projects. It also describes the objectives, methodology, progress, and innovations of a student project to design and model a residential NZEB, including designs for integrated solar panels, insulation, ground source heat pumps, natural ventilation, and solar lighting.

1. USE OF NET ZERO ENERGY BUILDING (NZEB)TO ACHIVE
SUSTAINABLE GOAL AND A KEY CONTRIBUTION TO
REDUCTION IN CLIMATE CHANGE
Guide-
Mr. Nitesh
Asst. Professor,
Department of civil engineering,
AJIET, Mangalore.
Submitted By-
ALBIN JOSEPH 4JK19CV008
CHETHAN SJ 4JK19CV017
DEEPTHIRAJ 4JK19CV019
SUMEETH SHETTY 4JK19CV042

2. CONTENTS
Abstract
Introduction
Objectives
Literature review
Methodology
Progress
 References

3. ABSTRACT
This article is focused on the Use of Net zero energy buildings to achieve sustaining
goals and a key to contribution of reduction in climate change. A Zero Energy
Building (ZEB), also known as a Net Zero Energy (NZE) building, is a building with net
zero energy consumption, meaning the total amount of energy used by the building on
an annual basis is equal to the amount of renewable energy created on the sites or in
other definitions by renewable energy sources offsite, using technology such as heat
pumps, high efficiency windows and insulation, and solar panels.

4. The goal is that these buildings contribute less overall greenhouse gas to
the atmosphere during operations than similar non-ZNE buildings. They
do at times consume non-renewable energy and produce greenhouse
gases, but at other times reduce energy consumption and greenhouse gas
production elsewhere by the same amount. The development of zero-
energy buildings is encouraged by the desire to have less of an impact on
the environment, and by tax breaks and savings on energy costs that
make zero-energy buildings financially viable.
Cont.…

5. WHAT IS ZERO ENERGY BUILDING?
 A zero energy building is a building
with zero net energy consumption
 The total amount of energy used by
the building on an annual basis is
roughly equal to the amount of energy
generated on the site through
renewable sources.
 These buildings consequently
contribute less overall greenhouse gas
to the atmosphere than similar non –
ZNE buildings
INTRODUCTION

6. Cont.…
 As the "zero energy" and "net zero energy" concepts are relatively new, there are not
yet definitive, widely accepted zero-energy metrics. The Department of Energy
(DOE) and the National Renewable Energy Laboratory (NREL) have spearheaded
much of the work on net zero energy buildings to date.
 In particular, the architecture for both schematic design and passive technology is
optimized and both energy simulation analysis and energy balancing analysis are
implemented, followed by committing the selection of high-efficiency appliance and
renewable energy sources for ZERB residential building.

7. A Critical look at the
definition explores definitions in
detail, and it suggests four ways in
which net zero energy may be
defined:
 Net Zero Site Energy
 Net Zero Source Energy
 Net Zero Energy Costs
 Net Zero Energy Emissions

8. Site Energy refers to the energy consumed and generated at a site
(e.g., a building), regardless of where or how that energy
originated.
Source energy refers to primary energy needed to extract and
deliver energy to a site, including the energy that may be lost or
wasted in the process of generation, transmission and distribution.
Net Zero Site Energy
Net Zero Source Energy

9. Net Zero Energy Cost means that the building has an energy utility
bill of $0 over the course of a year.
A Net Zero Energy Emissions building either uses no energy
which results in emissions or offsets the emissions by exporting
emissions-free energy
Net Zero Energy Cost
Net Zero Energy Emission

10. OBJECTIVES
 To find the materials which can be used for the development
of zero energy building.
 To study about the different methods of zero energy provider.
 To Achieve important criteria for sustainable building
 The aim of this research is assessing the net zero energy
building requirement for sustainable construction.

11. LITERATURE REVIEW
AUTHOR TITLE OF THE PROJECT AND THEIR WORK
Parker, et al (2001) “Parker, et al.(2001): “During times of peak demand, a Zero Energy Home
generates more power than it uses, thereby reducing power demand on the
utility provider. During times of power outage, the home generates its own
power, allowing the homeowner essential energy security. In a Florida study, a
prototype Zero Energy Home outperforms a conventional model by providing
almost all of its own power needs throughout the year”
Iqbal, et al (2003) “Zero energy home is the term used for a home that optimally combines
commercially available renewable energy technology with the state-of-the-art
energy efficiency construction techniques. In a zero-energy home no fossil fuels
are consumed and its annual electricity consumption equals annual electricity
production. A zero-energy home may or may not be grid connected”

12. METHODOLOGY
APPLYING OUR PLAN
FOR OUR PROJECT
PLAN RESEARCHING
ESTIMATION OF ELECTRIC
USE OF BUILDING
COMPARING WITH OUR
PLAN
LITERATURE REVIEW
CONSTRUCTION AND
RESULT

13. MATERIAL SELECTION
SELECTING MATERIALS IS ALSO AN IMPORTANT FACTOR IN CONSTRUCTING NZEB
METHODOLOGY
 One must also see to it that the materials selected are locally available so that transportation cost is
lesser and material are available in abundance.
Material mentioned below are locally available in the proposed site of the project:
 Iron ore and steel-The basic raw material for iron and steel industry that is also used in paints,
pigments and other allied industry.
 Steel as sustainable material-As steel remains steel forever once made ,it is a sustainable
material ,steel is infinitely recycled, so the investment in making steel is never wasted.
 Fly ash-Fly ash is a recycled product that can be used as a substitute for some of the cement in
concrete.

14. Where can zero energy building concept be
applied:
Residential
areas
Commercial
Buildings
New
Construction
Existing
Buildings
Industries

15. DIFFRENCE BETWEEN ZERO ENERGY
BUILDING AND CONVENTIONAL BUILDING
 ZERO ENERGY BUILDING  CONVENTIAL BUILDING
 To use resources more efficiently and reduce
a buildings impact on the environment.
 Increase comfort due to more uniform
interior temperature.
 Higher resale value as potential owner
demand more ZEB’s than available supply
 Encourage energy efficient building design.
 It doesn’t consider overall impact of the built
environment on human health and the natural
environment.
 Require extra operation energy for comfort .
 Low resale value.
 No energy efficient techniques used in
building designs.

16. PROGRESS……
 SOFTWARE USED:
 AUTOCAD
 POWER POINT
 MICROSOFT WORD

17. AUTODESK
AUTOCAD
• AutoCAD is a commercial
computer-aided design
(CAD) and drafting software
application.
• AutoCAD was first released
in December 1982
• AutoCAD is used in industry,
by architects, project
managers, engineers, graphic
designers, city planners and
other professionals. It was
supported by 750 training
centers worldwide in 1994.

18. PLAN OF THE RESIDENTIAL BUILDING

19. 2D
P
L
A
N

20. 3D PLAN

21. FRONT VIEW

22. INNOVATIONS

23. INTEGRATED SOLAR STRUCTURE
The Next Step in Solar Design & Technology…..
‘In roof’ solar panels are very similar to ‘on
roof’ panels, the only real differences being
that with in roof solar panels, the panels serve a
dual purpose, acting both as the roof covering
and as generators of electricity. Tiles are not
required under an in roof system.

24. An average 400W solar
panel getting 4.5 peak
sun hours per day can
produce around 1.8 kwh
of electricity per day
and 54 kwh of
electricity per month.
Solar panel production
varies based on the
output of the panel and
the available sunlight

25. INSULATION WALL
CAVITY WALLS
• IT CONSISTS OF TWO WALLS
SEPERATED BY A HOLLOW
SPACE.
• THE SKINS ARE NORMALLY
CONCRETE BLOCK OR BRICK
• MASONRY US ABOSRBENT
MATERTIAL AND THERFORE
WILL SLOWLY DRAW
RAINWATER OR EVEN
HUMIIDTY INTO THE WALL

27. GROUND SOURCE HEAT PUMP
A ground source heat
pump (also geothermal heat pump) is a
heating/cooling system for buildings that
uses a type of heat pump to transfer heat to
or from the ground, taking advantage of the
relative constancy of temperatures of the
earth through the seasons. Ground source
heat pumps (GSHPs)

29. NATURAL VENTILATION
It is a air conditioning
system which helps in
maintaining
temperature of the
building naturally by
providing natural air
(by wind)

30. Specification of the diagram :
 Fan for suction of air from the surrounding
 Mud layer with gunny bags to to decease the temperature of the air
 Nozzles for sprinkling of water from the top on the layers of mud and gunny bags
 Inner layer of the pipe is covered with the casing of aluminum layer as aluminum is the
good container of cold
Working procedure :
 The fan provided at the opening of the duct starts suction of blowing wind from the
atmosphere
 When this air enters the duct the air should first pass through the air filter mesh provided
to clean the air
 In the second layer the layer of mud and gunny bags provided it is the age old technique
of keeping the water in the mud containers to educe the temperature of the water which is
used here to decrease the temperature of the air
 As the air passes through the second layer the temperature of the air gets decreased
 This cold air enters the rooms through pipes provided and decrease the room temperature
 If needed the additional fan can be provided for exit of the hot air from the room

31. SOLAR LIGHTING
Solar tube
absorb
sunlight from
the top of the
building and it
is utilized for
the lighting of
the building.

32. REFERENCES
 Parker, D.S., Thomas, M. & Merrigan, T. (2001). On the path to Zero Energy Homes. Produced for the U.S.
Department of Energy by the National Renewable Energy Laboratory, and DOE national laboratory
 Esbensen, T.V. & Korsgaard, V. (1977). Dimensioning of the solar heating system in the zero energy house in
Denmark. Solar Energy Vol. 19, Issue 2, 1977, pp. 195-199
 Gilijamse, W. (1995). Zero-energy houses in the Netherlands. Proceedings of Building Simulation ‘95. Madison,
Wisconsin, USA, August 14–16; 1995, pp. 276–283.
 Iqbal, M.T. (2003). A feasibility study of a zero-energy home in Newfoundland. Renewable Energy Vol. 29, Issue 2
February 2004, pp. 277-289.

33. THANK YOU…