A zero energy building is a building that produces as much energy as it consumes annually through renewable energy sources like solar panels and wind turbines. It has highly efficient design and construction features to minimize energy usage. A zero energy building generates enough renewable energy to meet its own annual energy consumption through solar, wind, or other renewable sources. It can be connected to the electric grid but has no net energy consumption on an annual basis. Zero energy buildings reduce greenhouse gas emissions and fossil fuel dependence compared to conventional buildings.

1. ZERO ENERGY BUILDING
By: KARIAA MERYEM

2. Contents:
 What is Zero Energy Building ?
 Design and Construction.
 Basic Construction of a Zero Energy Building.
 Energy Harvest.
 Net Zero Energy building connected to grid.
 Zero Energy Building versus Green Building.
 Where can Zero Energy Building concept be applied?
 Advantages and Disadvantages.

3. What is Zero Energy Building?

4. * Zero Energy Building is:
 A Building with zero net energy consumption.
 Generates more energy than it consumes.
 Buildings contribute less overall greenhouse gases
to the atmosphere than a similar non zero-energy
building.
 Reduce carbon emissions and dependence on fossil
fuels which is the Zero Net-Energy Consumption
Principale.

5. Design and Construction:
*Building energy simulation:
Predicts the performance of ZNE
building depending on the energy
usage before it is built.
*Passive solar building design:
Walls,floors and Windows
distribute heat during winter and
reject the solar heat during
summer.
*Energy saving features:
Includes heating and cooling
loads,insulation and
ventilation depending on
climate zones.

6. Basic construction of a ZEB:

7. Energy Harvest:
● Solar Cells
● Wind Turbines
● Solar Thermal Collectors
{collects by absorbing sunlight}
● Solar Thermal Energy Storage STES
{storage of heat or cold up to several months}

8. Solar Energy:
• Solar panels placed on the rooftop absorbing as
much of the energy from the sunlight.
• The energy can be used for cooking,heating, etc…

9. * In some extreme areas
where wind energy
isabundant and high,small
wind mills can also be used
to generate electricity
from running in small
equipment.
Wind Energy:

10. Thermal Energy:
• It is used to maintain the
ambient temperature of the
building.
• It can also be used for heating
and cooling,etc.

11. Net Zero Energy building connected to
grid:
Buildings connected to grid can be termed as “Net Zero” if their
energy consumption is equal to their production over a year.

12. Zero Energy versus “Green buildings”:
 Green Building process depending on the environment
and efficient resources available.
 Green Building reduces negative impact on the
environment.
 Zero Energy Building reduces more energy usage and
greenhouse gases emission.
 Zero Energy Buildings may not be considered GREEN in all
areas.

14. Where can Zero Energy Building
concept be applied:
Residential
areas
Industries
Commercial
Buildings
New Construction
Existing Buildings

15. Advantages:
 Increase Comfort.
 Free of future energy cost increment.
 Reduced total cost of ownership due to improved
energy efficiency.
 Reduced total monthly cost of living.
 Reduced risk of loss from grid blackouts.

16. Disadvantages:
1. Initial cost can be higher.
2. Very few designers or builders have the necessary
skills or experience to build ZEBs.
3. Possible decline in future utility company renewable
energy costs may lessen the value of capital invested
in energy efficiencies.
4. Solar energy capture using envelope only works in
locations unobstructed from the south.

17. Thank you!
If you have any questions
I’m not Google.