In this presentation I have clearly explained the concept of ZEB, its overview, design, definitions, types, advantages and disadvantages and so on.

1. ZERO ENERGY BUILDING
Done by,
SENTHIL PANDI.B(17MC040)
II YEAR MECHATRONICS
SNS COLLEGE OF TECHNOLOGY.

2. OUTLINE :
• INTRODUCTION.
• OVERVIEW.
• DEFINITIONS.
• DESIGN AND CONSTRUCTION.
• ADVANTAGES AND DISADVANTAGES.
• DEVELOPMENT EFFORTS.
• CONCLUSION.

3. INTRODUCTION :
• A zero-energy building is a building with zero net energy
consumption, meaning the total amount of energy used by the
building on an annual basis is roughly equal to the amount of
renewable energy produced in that site.
• It is also known as a zero net energy (ZNE) building, net-
zero energy building (NZEB), net zero building or zero-
carbon building.

4. OVERVIEW :
• Most zero net energy buildings get half or more of their energy from the
grid, and return the same amount at other times.
• Buildings that produce a surplus of energy over the year may be called
"energy-plus buildings" and buildings that consume slightly more energy
than they produce are called "near-zero energy buildings“.
• Traditional buildings consume 40% of the total fossil fuel energy in the US
and European Union and are significant contributors of greenhouse gases.

5. DEFINITIONS :
Zero net site energy use :
In this type of ZNE, the amount of energy provided by on-site renewable energy
sources is equal to the amount of energy used by the building.
Zero net source energy use :
This ZNE generates the same amount of energy as is used, including the energy
used to transport the energy to the building. These ZNEs must generate more
electricity than zero net site energy buildings.
Net zero cost :
In this type of building, the cost of purchasing energy is balanced by income from
sales of electricity to the grid of electricity generated on-site.

6. DESIGN AND CONSTRUCTION :

11. ADVANTAGES AND DISADVANTAGES :
ADVANTAGES :
• isolation for building owners from future energy price increases.
• reduced requirement for energy austerity.
• reduced total cost of ownership due to improved energy efficiency.
• reduced total net monthly cost of living.
• future legislative restrictions, and carbon emission taxes/penalties may
force expensive retrofits to inefficient buildings.

12. DISADVANTAGES :
• initial costs can be higher - effort required to understand, apply, and qualify
for ZEB subsidies.
• very few designers or builders have the necessary skills or experience to
build Zero Net Energy Buildings
• challenge to recover higher initial costs on resale of building - appraisers
are uninformed - their models do not consider energy.
• climate-specific design may limit future ability to respond to rising-or-
falling ambient temperatures (global warming).

13. DEVELOPMENT EFFORTS :
• The Google photovoltaic campus and the Microsoft 480-
kilowatt photovoltaic campus relied on U.S. Federal, and
especially California, subsidies and financial incentives.
• California is now providing US$3.2 billion in subsidies for
residential-and-commercial near-zero-energy buildings.
• Zero-energy home model for India presented by 3C company
at acres 2011.

14. CONCLUSION :
• With the advancement in renewable technology, Net zero energy buildings
are the future.
• Many governments have framed zero energy building laws.
• Few governments are also providing subsidies to individuals and
organizations for creating zero energy buildings.
• But the goal of zero energy buildings would not be fulfilled till the time all
the people don’t understand their responsibility and contribute towards
reducing energy consumption.

15. THANK YOU