approach to lighting efficiency in existing buildings · new buildings is not enough • 80% of...
TRANSCRIPT
Indranil Goswami
Director, Lighting Controls
Approach to lighting efficiency
in existing buildings
Sustainability in lightingLighting is evolving beyond offering products
Energy Infrastructure
in Buildings & Cities
Energy Efficient
Solutions
Phasing-out of
in-efficient products
Leading EE lighting
Solutions
Offering Lighting Products
Integrating in Energy
Eco-systems
LPD
Cities are responsible for 75% of
global total energy consumption
Public and commercial
buildings represent 60%
of lighting electricity
consumption
Street lighting 15%
of lighting electricity
consumption
Cities and buildingsThe opportunity
Existing Buildings
(Renovation)
New Buildings
2005 2020 2035 2050
Energy Efficient New Buildings
Energy Efficient Renovations
Traditional construction
=
Co
mm
. F
loo
r sp
ace
(Bio
m2
)
-
-
-
-
-
-
-
-
70
60
50
40
30
20
10
2005 2020 2035 2050
New and existing buildings
• Commercial Building Floor Space >30 billion square meters
• 99% of all buildings are existing buildings
• 1% of all buildings are new buildings
Energy-efficient lighting in new buildings is not enough
99% of opportunities are in existing buildings
Renovation is vital
Energy efficient lighting in new buildings is not enough• 80% of lighting in buildings
is old technology• Only 1% uses lighting
controls: presence detection, daylight controls
99% of opportunities are in existing buildings
Opportunities for energy efficiency
Electromagnetic
Ballast
and
Standard
fluorescent
Lamp +
Electronic
Gear
-25%
+
efficient
optics
-25%
+
Control Systems
-40%
Electromagnetic
Ballast
and
New technology
Lamp
-10%100%
90%
67%
50%
30%+
New Technology
1 2 3 4 5
Opportunities for energy efficiency – new technology
Energy savings upto 50% realized with LED solutions for general lighting
Efficiency due to luminaire optics >90%
possible without violating office norms for
visual comfort
This means we can achieve similar lighting
levels with less lamps per luminaire
Opportunities for energy efficiency – new technology
Opportunities for energy efficiency – new technology
Opportunities for energy efficiency – new technology
Opportunities for energy efficiency – new technology
Energy Efficient Retrofit Kit
Opportunities and challenges
13
Opportunities for energy efficiency – lighting controls
N
No. of fixtures 42
Load per fixture 64W
Total Load 2.7kW
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
Opportunities for energy efficiency – lighting controls
N
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
No. of fixtures 42
Load per fixture 64W
Total Load 2.7kW
43
kWhUsage in this
period
Opportunities for energy efficiency – lighting controls
N
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
No. of fixtures 42
Load per fixture 64W
Total Load 2.7kW
10.2
kWhUsage in this
period
Opportunities for energy efficiency – lighting controls
N
8.4
kWhUsage in this
period
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
-Dimming
-Presence detection
-Daylight saving
Opportunities for energy efficiency – lighting controls
N
8.1
kWhUsage in this
period
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
-Dimming
-Presence detection
-Daylight saving
Opportunities for energy efficiency – lighting controls
N
10.7
kWhUsage in this
period
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
-Dimming
-Presence detection
-Daylight saving
Opportunities for energy efficiency – lighting controls
N
4.0
kWhUsage in this
period
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
-Dimming
-Presence detection
-Daylight saving
Opportunities for energy efficiency – lighting controls
N
2.7
kWhUsage in this
period
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
-Dimming
-Presence detection
-Daylight saving
Opportunities for energy efficiency – lighting controls
N
2.6
kWhUsage in this
period
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
-Dimming
-Presence detection
-Daylight saving
Opportunities for energy efficiency – lighting controls
N
0.3
kWhUsage in this
period
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
-Dimming
-Presence detection
-Daylight saving
Opportunities for energy efficiency – lighting controls
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
08-12 12-16 16-20 20-22 22-00 00-04 04-08
TIME
53.2
kWh
36.8
kWh
31%
Energy saving
Opportunities for energy efficiency – lighting controls
