Nessa Presentation

@2012 Nessa company confidential
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NESSA ILLUMINATION
TECHNOLOGIES
Lighting Up Miracles

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WHAT IS LED?
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Key Parameters
 Luminance
o Light reflected from a surface in a given direction when we see
an object
 Correlated Color Temperature – CCT
o Color appearance of a lamp
o Measured in Kelvin (K)
o Warmwhite, Neutral, Cool White
 Colour Rendering Index – CRI
o Light sources differ in their ability to render color of objects
“correctly”

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System Efficacy
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LED Advantages
 High durability of LEDs lasting for more than 10 years. In
comparison, the conventional sodium and CFL lamps typically
require replacement once every year
 Environment friendly and easy disposal due to absence of
harmful substances like mercury and lead
 Higher color temperature of light
 Higher CRI: More vision clarity
 Low heat emission
 Cleaner and Greener environment to breathe!
 Payback period of less than 1.5 years due to 1/3 power
consumption

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LEDs reduce light pollution
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So what’s the problem ??
Conventional lights have high power
consumption
They fail very frequently and high maintenance
required
Even the LED lights have been found to fail
very frequently in India

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Over Promising

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About us
At Nessa , we innovate energy efficient
lighting using LEDs and Solar
technology with the vision of becoming
the leader in changing country’s energy
infrastructure at costs comparable with
conventional technology.

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Team Profile
Akshat Khare
– B.Tech (Electrical) IIT Bombay, M.Tech (Microelectronics) IIT Bombay
– PGDM (MBA) IIM Ahmedabad
– International CFA
– Worked as a joint promoter in similar company and raised funds up to a
tune of Rs 3.5 Cr from a venture capitalist firm
Dhaval Shah
– B.E (Electronics and Communication) Nirma University
– M.S (Electrical Engineering) University of Southern California, U.S.A.
– Worked in Multinational Semiconductor company for 8 years
Both working as entrepreneurs since 2007

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How do we differentiate?
 Thermal Management
 Driver/Controller Design
 Suitable optics and simulations
 Recycling and safe disposal of existing sodium lamps

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Thermal Management of LEDs
 Highly thermally conductive solder points and thermal contacts
 Mounting of LEDs so as to maximize the surface area and reduce thermal
resistance
 Primary Heat-sink (MCPCB) with highly thermally
conducting dielectric and Aluminum 5052 base
 Secondary Heat-sink (Streetlight body) with die
cast aluminum alloy and optimal number of fins
 Theoretical 60,000 hour life becomes practical
life !!
10oC
J
Temp
Life=
Life/2

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Driver/Controller Design
 High AC-DC efficiency of more than 90%
 Matrix architecture
 Inbuilt power factor correction of 0.952
 High voltage fluctuation range of 85-275 V
 Inbuilt spike guard for high voltage spikes
 Magnetic isolation
 Up to 3000 V Electrostatic Discharge tolerance

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Suitable optics and Simulations
 Inbuilt asymmetric lenses for
rectangular spread
 Low optical losses because
of primary lens
 Uniform spread and no dark
spots
 30 W of LED ≅ 70 W Sodium
lamp
No, not lumens to lumens but lux to lux
 High values for Eav and U

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Simulation Results

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Application Category
 Street Lighting
 Area Lighting for open area
o High mast, Low mast lighting
 Office Lighting
o Recessed Mounting, Tubelight/Bulb
 Industrial Lighting
o Bay Lights, Well Glass, Explosion proof Fittings, Canopy Lighting
 Cold Storage Application

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LED vs HPSV/MH Fittings
HPSV Street Light LED Street Light
70W 22W-24 W
150 W 55W-65 W
250 W 100W-120 W

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24 W LED Streetlights
Single Sided arrangement with the following data:
(1) Height = 6 m
(2) Overhang = 1.53 m
(3) Boom Angle = 15 deg
(4) Boom length = 1.5 m
(5) Road width = 7 m, Distance between poles = 18 m
L (avg) = 15 lux
L (max) = 25 lux
L (min) = 8.9 lux

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60W LED Streetlights
Single Sided arrangement with the following data:
(1) Height = 8 m
L (avg) = 21 lux
L (max) = 29 lux
L (min) = 14 lux

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90W LED Streetlights
Double Sided arrangement with the following data:
(1) Height = 10 m
L (avg) = 28 lux
L (max) = 45 lux
L (min) = 4.5 lux

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Road and Area lighting planning using
Software

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Certifications
 CE Certification
 ISO 9001:2008
 MNRE Certified
 DGS&D Registered
 LM-79 Test report
 LM-80 Test report

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Our Installations

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250W Street light replacement

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City of Hawassa – 110W LED Street lights

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High Mast Tower Installation

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91.0 93.0 74.0 64.0 26.089.074.056.026.0
50.0 42.0 32.0 26.0 18.044.042.035.018.0
48.0 35.0 23.0 13.0 9.055.033.023.018.
0
26.0
28.0
53.0
HM -14 WITH NESSA LED LIGHT LUX LEVEL & ENERGY CONSUMPTION
1. Actual Lux level achieve against clam mark with
yellow marking.
2. Average lux level achieve 42.
3. Energy consumption with traditional fixture is
173 Kwh.
4. Energy consumption with Led light fixture is 89
Kwh.
5. Net energy saved/day is 173-89= 84 kwh.
6. Net saving 48.55 %
51.0
56.0
55.
0

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Solar Lighting 60W

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Solar Lighting

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Petrol Pump Canopy Lighting
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Our Distinguished Customers

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Thank you

Nessa Presentation

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