Standardization in the Green Buildings field Overall energy performance of buildings

Standardization and Innovation in the Green Buildings Sector
Standardization
in the Green Buildings field
Overall energy performance of buildings
Dick (H.A.L.) van Dijk,
Senior Scientist at
Netherlands Organisation for Applied Scientific Research TNO
Co-convenor ISO/TC 163-TC 205 Joint Working Group
Energy Performance of Buildings using the Holistic
Approach
Content
1.Green Buildings
2.Energy performance of buildings (EPB)
– International standardization - history
– Principle of overall energy performance of buildings
3.EPB standards and innovation
4.Systemic approach & link with product information
5.Energy Performance of Buildings,
the ISO 52000 series, work in progress
Slide 2
What is a green building
“A green building
• Operates energy efficiently
• Conserves water
• Is comfortable, safe and
healthy
• Is durable and maintainable
with minimal environmental
impact
“
Life Cycle:
• Construction
• Operation
• Deconstruction
Slide 3
Example of
Buildings Rating System Categories
Category 1
Sustainable Site, Accessibility and Ecology
Category 2
Energy Efficiency
Category 3
Water Efficiency
Category 4
Materials & Resources
Category 5
Indoor Environmental Quality
Category 6
Management
Category 7
Innovation and and Added Value
4
Energy performance of buildings
(EPB)
Slide 5
History
2020
2000
1980
Bldng envelope &
components
Bldng heating needs
Energy use for
heating and cooling
Overall building
energy performance
Energy producing
built environment
Slide 6
Now: Overall energy performance of
buildings (EPB)
Overall Energy
balance
(energy use,
own
production)
Requires
an integrated and modular
set of calculation
procedures
Since 2009 in ISO
ISO/TC 163/WG 4, joint working group of TC 163 and TC 205
Energy Performance of Buildings using the
holistic approach
Co-convenors:
• Mr Dick van Dijk (Netherlands)
• Prof Essam Khalil (Egypt)
Inspired by
European Energy
Performance of
Buildings
Directive (EPBD)
!?!
Overall
Energy
balance
(energy use,
own
production)
Systemic approach
EP
Today:
Think
pyramid
EP expressions
EP aggregation
Boundaries, classification
Collect all energy elements
Building energy needs
and system energy losses
Component input data
Boundary conditions
Why systemic approach?
Product performance ≠
Performance in building
Slide 10
ASHRAE (USA)
Possible Future Roadmap
110%
ASHRAE 90.1 Building Target
100%
90%
80%
MaxTech Limit Full Load Efficiency
70%
Component
approach
reaches
limit
60%
50%
40%
30%
20%
10%
0%
2004
2007
2010
Average ASHRAE 90.1
2013 Requirements
Regulated Buidling Energy Use vs ASHRAE 90.1‐2004
Commercial HVAC Efficiency Requirements
Possible Path to nearly Net Zero Buildings
2013
2016
Equipment Level Limit
2019
2022
Year
Systems Approach &
Renewable Energy
2025
2028
2031
Chart is an estimate of possible future regulations to achieve Near Net Zero by 2034 based on studies done by
Carrier on technical limits of HVAC equipment
2034
Need for
systems
approach
2037
Example: heat recovery unit
(ventilation)
• High performance product: 95% efficiency
• Applied in building:
– Duct heat losses?
– Frost protection?
– Windows opened?
– By pass (summer)?
–…
Slide 12
Example: heat pump
• High performance product
• Applied in building:
– Sufficient capacity?
– Heat source temperature?
Performance
Power
Slide 13
Example:
Renewable energy
• Complex policy issues involved
• For instance appreciation of:
– Use of biomass as renewable
energy
– Green electricity produced on site
and exported to the grid
– Use of renewable energy
produced at district level
– ….
Slide 14
Example:
Infrared panel heater
• Claim: “significant energy saving,
because..” (for instance)
– Better room temperature distribution
– Fast response
– More comfortable
– Decreased ventilation heat losses
• Requires detailed model to evaluate
claims
– Complex standard assumptions
(for level playing field)
Slide 15
Overall EP requirements in
The Netherlands since 1995
Major innovation motor
Research and innovation:
• New EPB technologies
(Inter-)national
policies:
•
•
•
Regularly tightened
minimum EP
requirements
(Financial) incentives
Awareness campaigns
EP
EPB Standards:
• Regularly updated
with new
technologies
The Netherlands
Transparent long term national policy
Condensing
boilers
High
perfomance
glazing
High
DC fans
performance
lighting
(offices)
Solar hot
water
systems
Served as one of the
examples for the
European Directive
Heat pumps
Heat recovery &
Demand
controlled
ventilation
Combined heat
and power
Heat recovery
showers
PV systems
Future:
??!!
ISO & CEN:
Unique international cooperation
2000
2010
2020
CEN/TC 89, Thermal performance of buildings and building components
ISO/TC 163, Thermal performance and energy use in the built environment
ISO JOINT WORKING GROUP
Energy Performance of Buildings using holistic
approach (ISO/TC 163/WG 4)
CEN/TC 371, Project Committee on Energy Performance
of Buildings
ISO/TC 205, Building environment design
ASHRAE standards
Slide 18
Work in progress
Set of EN ISO standards on
Energy Performance of
Buildings (EPB):
ISO 52000 series
ISO 52000
ISO 52001
ISO 52003
ISO 52004
…
ISO 52009
ISO 52010
..
ISO 52015
ISO 52016
ISO 52017
ISO 52018
ISO 52019
ISO 52020
ISO 52021
ISO 52022
…
ISO 52145
ISO 52146
ISO 52147
ISO 52148
ISO 52149
ISO 52150
Conclusions
International standards on
overall energy performance of buildings
• A major innovation motor
• Systemic approach is necessary
• Challenges:
– Calculation procedures regarded as complicated
– Input data from product performance assessment
– Need to cover wide range of technologies, climates,
building types, occupants patterns, policy issues, ..
-Slide 20
Questions and suggestions?
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