toolkit - microsoft · case study: aranya bhawan, jaipur aranya bhawan is the new office building...
TRANSCRIPT
![Page 1: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/1.jpg)
© OECD/IEA 2018
#energyefficientworld
Toolkit:
Buildings: Session 3
Energy efficient building design
Buildings energy
efficiency sessions
in partnership with:
INDO-SWISS BUILDING ENERGY EFFICIENCY PROJECT
![Page 2: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/2.jpg)
© OECD/IEA 2018
Energy Efficiency Training Week: Buildings Program
1. Where to start: Energy use in buildings
2. Where to start: Energy efficiency potential in buildings
3. Toolkit: Energy efficient building design
4. Toolkit: Energy efficient building technologies
Where do I get help? IEA’s Technology Collaboration Programmes
5. Toolkit: Energy efficiency policies and target setting
6. What are the steps? Enabling investment with energy efficiency policies
7. What are the steps? Implementing building energy codes and standards
8. What are the steps? Building operations and procurement
Special session. The multiple benefits of energy efficiency
9. Did it work? Evaluation and energy efficiency indicators
Where do I get help? International and regional energy efficiency initiatives
10. Energy efficiency quiz: Understanding energy efficiency in buildings
![Page 3: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/3.jpg)
© OECD/IEA 2018
Energy Efficiency Training Week: Buildings
3. Toolkit: Energy efficient building design
Trainers: Brian Dean and Pierre Jaboyedoff
Purpose: To teach the fundamentals of how building design
can reduce energy use in buildings. This course will also
describe how an integrated design process and the use of
simulation tools can achieve cost effective and energy
efficient buildings.
Scenario: Builders are saying that construction timelines are
short and it is not possible to design more efficient buildings
because it is too complicated. What changes in building
design can enable more energy efficiency in buildings?
![Page 4: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/4.jpg)
© OECD/IEA 2017
Integrated design process
Sufficiency, efficiency, renewables
Tiered approach to integrated design
Design charrette
![Page 5: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/5.jpg)
© OECD/IEA 2018
Path to zero emissions or net zero energy buildings
Source: www.iea.org/publications/policypathwaysseries/
![Page 6: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/6.jpg)
© OECD/IEA 2018
The tiered approach for the integrated design process
Source: Adapted from Lechner, Norbert: Heating, Cooling, Lighting : Sustainable Design Methods for
Architects
Integration of:
• Multiple design
professionals
• Multiple aspects
of building
design and
construction
![Page 7: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/7.jpg)
© OECD/IEA 2018
Integrated Design Process: Tier 0 – Site Design
Source: Adapted from Lechner, Norbert: Heating, Cooling, Lighting : Sustainable Design Methods for
Architects
Landscaping
• Impact on solar gains on building
• Impact on airflow
• Seasonal variation
Wind patterns
• Dominant wind direction in hot summer
• Layout of buildings for natural ventilation potential
Building orientation & building shape
• Solar gains on facades
• Optimal orientation of facades
![Page 8: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/8.jpg)
© OECD/IEA 2018
Integrated Design Process: Tier 0 – Site Design
Source: India BEEP and India BEE. Design Guidelines For Energy-Efficient Multi-Storey Residential Buildings (Composite and Hot-Dry
Climates)
Facade orientation
• Crucial, especially for long buildings
• Account for annual solar gains by orientation
Long facades facing South and North Long facades facing East and West
Isometric view from South West
![Page 9: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/9.jpg)
© OECD/IEA 2018
Integrated Design Process: Tier 0 – Site Design
Source: India BEEP and India BEE. Design Guidelines For Energy-Efficient Multi-Storey Residential Buildings (Composite and Hot-Dry
Climates)
Influence of buildings on wind velocity
• Building shape, size and layout all influence wind speeds
Air velocity when wind is perpendicular to building facade orientation
![Page 10: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/10.jpg)
© OECD/IEA 2018
Integrated Design Process: Tier 0 – Site Design
Source: India BEEP
Example wind distribution for a project in Indore (DB Pride)
View from the South / Main wind from the West
![Page 11: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/11.jpg)
© OECD/IEA 2018
Integrated Design Process: Tier 0 – Site Design
Source: India BEEP and India BEE. Design Guidelines For Energy-Efficient Multi-Storey Residential Buildings (Composite and Hot-Dry
Climates)
Using wind speed for
natural ventilation
• Low-density projects: influence cross
(horizontal) and stack
(vertical) ventilation
• High density projects: there is low wind speed
between buildings, but
you can use wind
speed on the roof to
increase suction on
vertical shafts for
increased stack
ventilation.
Example wind distribution for a
project in Indore (DB Pride)
![Page 12: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/12.jpg)
© OECD/IEA 2018
Integrated Design Process: Tier 1 – Building Design
Source: Adapted from Lechner, Norbert: Heating, Cooling, Lighting : Sustainable Design Methods for
Architects
Walls, windows, shading and solar gains
• Wall should be designed to have insulation
• Window area should be limited to 10-30% of the wall area
• Windows should be highly efficient, particularly if more than 25% of the
wall area (both thermal protection and solar protection)
• Shading with overhangs should be designed based on solar angles (i.e.
typically overhangs are more effective on North and South walls)
• Shading with movable external shades can be highly effective for
optimized daylighting and controlling solar gains.
• Shutters
• Movable blinds
(technologies are described in more detail in the next session)
![Page 13: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/13.jpg)
© OECD/IEA 2018
Integrated Design Process: Tier 1 – Building Design
Source: Adapted from Lechner, Norbert: Heating, Cooling, Lighting : Sustainable Design Methods for Architects
Building envelope is often the main source of heat gain/loss
• Walls, windows, roof, uncontrolled air infiltration
• There is a wide variation in the quality of building envelopes:
10% Windows with shading
35% Windows with inadequate shading
U ~ 0.5 W/m2.K
U ~ 3.5 W/m2.KMonolithic concrete
wall
![Page 14: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/14.jpg)
© OECD/IEA 2018
Integrated Design Process: Tier 1 – Building Design
Source: BEEP India
Building envelope is often the main source of heat
gain/loss
• Window area has a significant impact on cooling energy use:
Annual cooling energy use (kWh/m2-year)
Window to wall area ratio (%)
![Page 15: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/15.jpg)
© OECD/IEA 2018
Integrated Design Process: Tier 2 – Passive Systems
Source: Adapted from Lechner, Norbert: Heating, Cooling, Lighting : Sustainable Design Methods for
Architects
Passive systems are reliant on Tier 0 (site design) and Tier 1
(building design), and include:
• Passive cooling
• Evaporative cooling (airflow and water)
• Ventilative cooling (natural ventilation)
• Earth tunnel (underground)
• Passive heating (trombe wall and greenhouse effect)
• Passive lighting (daylighting)
![Page 16: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/16.jpg)
© OECD/IEA 2018
Integrated Design Process: Tier 2 – Passive Systems
Source: BEEP India
0
20
40
60
80
100
1940 1950 1960 1970 1980 1990 2000 2010 2020 2030
Passive Architecture
“modern” architecture70-100% glazed, no natural ventilation, all air systems
“ancient” architecture(low window to wall ratio, natural ventilation, …
“sustainable” architecture 15-40% window to wall ratio, natural ventilation, external movable solar protection, radiant cooling
![Page 17: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/17.jpg)
© OECD/IEA 2018
Integrated Design Process: Tier 3 – Mechanical Systems
Source: Adapted from Lechner, Norbert: Heating, Cooling, Lighting : Sustainable Design Methods for Architects
After all of the passive options are used, mechanical
systems can deliver the designed comfort:
• Active heating systems
• Active cooling systems
• Fans
• Active lighting
(technologies are described in more detail in the next session)
![Page 18: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/18.jpg)
© OECD/IEA 2018
Integrated Design Process: Tier 4 – Renewable Energy
Source: Adapted from Lechner, Norbert: Heating, Cooling, Lighting : Sustainable Design Methods for Architects
To deliver net zero energy or emissions, renewable energy
can be used to provide all on-site energy needs
• Solar thermal
• Typically for hot water or heating
• Renewable electricity
• Solar photovoltaic
• Wind
• Purchased renewable energy
![Page 19: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/19.jpg)
© OECD/IEA 2018
Integrated design process: Design Charrette
Source: BEEP India and IEA Task 23 Optimization of Solar Energy Use in Large Buildings, 2003
Experience shows:
• Cost-effective and energy
efficient design (25-40%
energy savings at no/
marginal cost increase) is
possible if the architect,
engineer and client work together in a Design
Charrette/Workshop during
the early design phase.
• More savings are achieved
when the architects and
engineers continued to work together in the design phase.
Timing for Design Charrette
![Page 20: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/20.jpg)
© OECD/IEA 2018
Integrated design process: Design Charrette
Source: BEEP India and DOE2.com
Building energy modelling
• Should be used throughout the design process from schematic design
(early) to construction (end of design) to understand the impact of design
decisions
• At the early design stage, use
simplified models or simplified
modelling:
• Simplified model: such as using
“wizard mode” in eQUEST that
pre-fills information so that you
do not have to enter in all data.
• Simplified modelling: such as
modelling one zone of the
building
![Page 21: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/21.jpg)
© OECD/IEA 2018
Integrated design process: Design Charrette
Source: BEEP India
Example: high rise office building for France Ministry of Ecology 38m
60 postes de travail
1065 m2 SHON
27m
Plan libre
Espace fermé
RéunionsBox individuel
Reprographie
Sanitaires
Locaux techniquesAscenseur
65m
18m
Pla
n lib
re
Espace ferm
éR
éunio
ns
Box indiv
iduel
Reprographie
Sanitair
es
Locaux t
echniq
ues
Ascenseur
69 p
oste
s de t
ravail
1189 m
2 S
HO
N
36m
25m
53m
19m
13m
13,83m
15m
16,5m
13m
15m
47m
11m
26m
44mOption 1 (reference case):
Square deep floor plate, poor envelope, no dynamic solar shading, mechanical ventilation without heat recovery
Option 2 (high performance): Square shallow floor plate, good quality envelope, dynamic solar shading (SHGC=15%), mechanical ventilation with heat recovery, natural ventilation on the peripheral zones
Option 3 (“bioclimatic” design): shallow floor plate (15.4 m depth), good quality envelope, dynamic solar shading (SHGC=15%), mechanical ventilation with heat recovery, natural ventilation on the peripheral zones
Option 4 (“bioclimatic” design with cross ventilation): shallow floor plate (15.4 m depth), good quality envelope, dynamic solar shading (SHGC=15%), mechanical ventilation with heat recovery, natural ventilation between peripheral and central zones
![Page 22: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/22.jpg)
© OECD/IEA 2018
Integrated design process: Design Charrette
Baseline
Number of hours < 30°C
Low cost housing project Smart Ghar
Assisted cross ventilation
Partly opaque shutters
External shutter
100% operable windows
Source: BEEP India
Example: thermal comfort without active cooling
![Page 23: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/23.jpg)
© OECD/IEA 2018
Case study: Aranya Bhawan, Jaipur
Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur,
inaugurated in March 2015.
• BEEP Integrated
Design Charrette
(December 2012)
• Monitored data
(2016)
![Page 24: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/24.jpg)
© OECD/IEA 2018
Aranya Bhawan: BEEP integrated design charrette
As at the time of charrette, the orientation and building massing was already finalized;
the focus was more on envelope & HVAC measures
• Client: Rajasthan Forest Department
• Executing Agency: Rajasthan
State Road Development and
Construction Corporation Ltd.
(RSRDC)
• Architects: Mathur, Ugam and
Associates
BEEP Integrated Design Charrette was held in December 2012, adopting a
collaborative working approach between the client, RSRDC & the architect.
![Page 25: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/25.jpg)
© OECD/IEA 2018
Aranya Bhawan: Passive measures
Roof Insulation
Wall Insulation
Reduction
in Glazed
Area
Glazing: U-value:
1.8 W/m2.K
SHGC: 0.24
VLT: 36%
U-value: 0.6 W/m2.K
U-value: 0.5 W/m2.K
![Page 26: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/26.jpg)
© OECD/IEA 2018
Aranya Bhawan: Cooling system
Water Cooled Energy
Efficient Chiller (using water
after waste water treatment)
![Page 27: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/27.jpg)
© OECD/IEA 2018
Aranya Bhawan: Cooling system size
Integrated design often allows reducing investment for HVAC systems
0
50
100
150
200
250
Before the charrette After charrette
Cooling system size (TR)
28% reduction
![Page 28: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/28.jpg)
© OECD/IEA 2018
Aranya Bhawan: Cost benefit of energy efficiency measures
EPI: 77
kWh/m2/year
EPI: 53
kWh/m2/year
![Page 29: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/29.jpg)
© OECD/IEA 2018
Aranya Bhawan: Electricity consumption
3.3
3.2
3.9
4.5
5.5
5.3 5.4
5.2
4.6
4.5
3.9
3.4
1.3 1.4
2.0
3.9
6.1
6.7
5.7
4.9
5.3
3.4
1.1 1.2
0.0
1.0
2.0
3.0
4.0
5.0
6.0
7.0
Jan Feb Mar Apr May Jun Jul Aug Sep Oct Nov Dec
kW
h/m
2.m
on
th
Monthly EPI Comparison: Simulated vs. ActualSimulated EPI Actual EPI
Actual EPI: 43 kWh/m2.yearBEE 5 star benchmark: 90 kWh/m2.year
![Page 30: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/30.jpg)
© OECD/IEA 2018
Aranya Bhawan: Energy monitoring
![Page 31: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/31.jpg)
© OECD/IEA 2018
Aranya Bhawan: Monitoring results
Energy flow (Sankey Diagram)
for the Summer Monitoring
![Page 32: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/32.jpg)
© OECD/IEA 2018
Aranya Bhawan: Renewable energy
Grid connected rooftop solar PV• Capacity: 45 kWp (annual production: ~60,000
kWh)• Additional 100 kWp being planned
![Page 33: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/33.jpg)
© OECD/IEA 2018
Aranya Bhawan: Rooftop solar photovoltaic system
81419088 9884
20378
24953
1531 23983754 3008
5453
0
5000
10000
15000
20000
25000
30000
Dec-15 Jan-16 Feb-16 Mar-16 Apr-16
Aranya Bhawan Energy Consumption & Solar PV
Generation (kWh/month)
Total kWh Solar kWh
Solar Fraction:
Monthly: 15-38%
Annual (Expected): ~20%
![Page 34: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/34.jpg)
© OECD/IEA 2017
Design, construction and
measurement standardisation
Capital gap and performance gap
Investment Ready Energy Efficiency
![Page 35: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/35.jpg)
© OECD/IEA 2018
The energy efficiency capital gap
Projects
• Untapped market
opportunity
• Healthy returns
• Established industry
• Excess capacity
Investors
• Search for yield
• Risk/return
• Growing emphasis on
impact investing
• Growing interest in EE
Source: Investor Confidence Project
![Page 36: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/36.jpg)
© OECD/IEA 2018
The performance gap
![Page 37: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/37.jpg)
© OECD/IEA 2018
Lack of standardisation results in:
Greater performance risk
Uncertainty limiting demand
Higher transaction costs
Difficult to build capacity
Difficult to aggregate
Source: Investor Confidence Project
![Page 38: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/38.jpg)
© OECD/IEA 2018
What owners and investors want
• Clear and transparent construction or renovation project plan
based on industry best practices
• Evidence of the qualification of professionals
• Third-party measurement and verification
• Consistent documentation
• A project label that represents these components and can
live with the project
Source: Investor Confidence Project
![Page 39: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/39.jpg)
© OECD/IEA 2018
What does a standardised approach looks like?
Source: Investor Confidence Project
![Page 40: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/40.jpg)
© OECD/IEA 2018
What does a standardised approach looks like?
Source: adapted from Investor Confidence Project
Baselines provide a reference regarding energy use, allowing for prediction of energy consumption in different scenarios, and for energy savings calculations.
• Develop 12 month energy consumption baseline
• Determine energy use by end-use
• Building performance
• Weather data
• Occupancy data
![Page 41: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/41.jpg)
© OECD/IEA 2018
What does a standardised approach looks like?
Source: adapted from Investor Confidence Project
Savings calculations provide important information for project valuation and for the determination of the energy efficiency measures to be implemented.
• Energy modeling software
• Modeler credentials
• Supporting model files and model calibration
• Key metric benchmarks
• Energy efficiency measures model variables
• Individual and packaged energy savings results
![Page 42: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/42.jpg)
© OECD/IEA 2018
What does a standardised approach looks like?
Source: adapted from Investor Confidence Project
Design, construction and verification are all crucial phases. Procedures and
documentation of these processes is key to investor confidence.
• Operational performance verification plan
• Commissioning
• Inspection and spot measurements
• Data logging
• Training
• Systems manual
![Page 43: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/43.jpg)
© OECD/IEA 2018
What does a standardised approach looks like?
Source: adapted from Investor Confidence Project
The way that buildings are operated and maintained impact their energy performance, and monitoring this information is key to performance guarantees.
• OM&M plan and management framework
• OM&M process
- Inspections
- Retro commissioning
- Ongoing commissioning
- Monitoring-based commissioning
• Operator’s manual and training
![Page 44: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/44.jpg)
© OECD/IEA 2018
What does a standardised approach looks like?
Source: adapted from Investor Confidence Project
Proper measurement and verification procedures validate the reliability
and effectiveness of predicted energy savings.
• M&V provider credentials
• Options A and B: retrofit isolation
• Option C: utility bill analysis
• M&V report
![Page 45: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/45.jpg)
© OECD/IEA 2018
Does NOT:
• Invent new standards
• Attempt to impose national standards in another country
• Restrict engineering solutions
• Define a set level of energy savings
Does:
• Increase deal-flow in the near-term
- Increase confidence in savings
- Reduce transaction costs
• Reduce risk and costs in the long-term
- Attract project finance investors
- Reduce cost of capital
Source: Investor Confidence Project
Standardised approach
![Page 46: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/46.jpg)
© OECD/IEA 2018
An international framework for reducing owner and investor risk, lowering due diligence
costs, increasing certainty of savings achievement and enabling aggregation.
The IREE™ Certification ensures transparency, consistency and trust-
worthiness through best practice and independent verification.
Investor Ready Energy Efficiency (IREE)
Source: Investor Confidence Project
![Page 47: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/47.jpg)
© OECD/IEA 2018
An international framework for reducing owner and investor risk, lowering due diligence
costs, increasing certainty of savings achievement and enabling aggregation.
The IREE™ Certification is delivered prior to investment decision
Investor Ready Energy Efficiency (IREE)
Source: Investor Confidence Project
UnderwritingPeriod
PerformancePeriod
![Page 48: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/48.jpg)
© OECD/IEA 2018
Energy efficient building design
Scenario:
Builders are saying that construction timelines are short
and it is not possible to design more efficient buildings
because it is too complicated.
What changes in building design can enable more
energy efficiency in buildings?
![Page 49: Toolkit - Microsoft · Case study: Aranya Bhawan, Jaipur Aranya Bhawan is the new office building of the Rajasthan Forest Department in Jaipur, inaugurated in March 2015. •BEEP](https://reader034.vdocuments.us/reader034/viewer/2022042510/5f93a990f0e1943f0431f4be/html5/thumbnails/49.jpg)
© OECD/IEA 2018
www.iea.org#energyefficientworld