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GARDEN LIGHTS 
Centre for application of renewable energy 
SOLAR LED STREET LIGHTS 
ARSTREET/G 
SIMPLIFYING SOLAR STREET L...
Why SOLAR Energy? 
Th E th i 174 t tt (PW) f i i l di ti 
GHTS 
The Earth receives petawatts of incoming solar radiation 
...
Why SOLAR Energy? 
GHTS 
AND THE ONLY REASON IS BECAUSE …………………. 
THERE IS 
GARDEN LIG 
NO 
ARSTREET/G 
PLANET “B” or “C”…...
Sharing a little we know 
Solar energy is a completely renewable resource This means that even when we 
GHTS 
resource. ca...
Sharing a little we know and a little more 
GHTS 
Photovoltaics, or PV for short, is a solar power technology that uses 
s...
A Little math would be in place too….. 
I ld d b 300 600 900 L bl di h i i 
GHTS 
It would need about or 600or Lumens at r...
COMPARATIVE 
Comparison GHTS 
Chart 
LED Lights vs. Incandescent Light Bulbs vs. CFLs 
(LEDs) Incandescent Bulbs 
Compact ...
Energy Efficiency & Energy Costs 
GHTS 
Comparison Chart 
LED Lights vs. Incandescent Light Bulbs vs. CFLs 
(Incandescent ...
ENVIRONMENTAL IMPACT 
GHTS 
Comparison Chart 
LED Lights vs. Incandescent Light Bulbs vs. CFLs 
(LEDs) Incandescent Bulbs ...
IMPORTANT FACTS 
Comparison Chart Important facts 
GHTS 
LED Lights vs. Incandescent Light Bulbs vs. CFLs 
(LEDs) Incandes...
A Little math would be in place too….. 
600,000 villages As per the 2011 Census 
GARDEN LIGHTS 
IF WE INTEND TO LIGHT 10 %...
Benefits 
GHTS 
• NO CABLES 
• NO SHOCKS 
GARDEN LIG 
• NO DEPENDENCE ON GRID ELECTRICITY 
• NO POWER CUTS 
• NO DARKNESS ...
GENERAL BENEFITS of LED STREET LIGHTS 
Less energy consumption 
LED street lights use 40‐80% less electricity and have at ...
GENERAL BENEFITS of LED STREET LIGHTS 
Reducing carbon footprint 
GHTS 
The carbon footprint of LED street lights is small...
Garden Light Solutions 
SOLAR STREET/GARDEN LIGHTS 
SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE EN...
LIGHT SOLUTIONS 
SOLAR STREET/GARDEN LIGHTS 
SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WE...
SSTL SOLAR STREET LIGHTS 
SOLAR STREET/GARDEN LIGHTS 
SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ...
Garden Lights 
SOLAR STREET/GARDEN LIGHTS 
SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBS...
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Solar Street Lights with LED luminaries, made more relevant.

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Solar street Lights
Most solar panels turn on and turn off automatically by sensing outdoor light using a light source.Solar streetlights are designed to work throughout the night. Many can stay lit for more than one night if the sun is not available for a couple of days. Older models included lamps that were not fluorescent or LED. Solar lights installed in windy regions are generally equipped with flat panels to better cope with the winds.

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Transcript of "Solar Street Lights with LED luminaries, made more relevant."

  1. 1. GARDEN LIGHTS Centre for application of renewable energy SOLAR LED STREET LIGHTS ARSTREET/G SIMPLIFYING SOLAR STREET LIGHTS SOLA SIMPLIFYING SOLAR STREET LIGHTS
  2. 2. Why SOLAR Energy? Th E th i 174 t tt (PW) f i i l di ti GHTS The Earth receives petawatts of incoming solar radiation (insolation) at the upper atmosphere. Approximately 30% is reflected back to space while the rest is absorbed by clouds, oceans and land masses. The spectrum of solar light at the Earth's surface is mostly spread across GARDEN LIG Earth s the visible and near‐infrared ranges with a small part in the near‐ultraviolet. ARSTREET/G The total solar energy absorbed by Earth's atmosphere, oceans and land masses is approximately 3,850,000 exajoules (EJ) per year. hi i h h h ld d i SOLA In 2002, this was more energy in one hour than the world used in one year Solar energy can be harnessed in different levels around the world. Depending on a geographical location the closer to the equator the more "potential" solar energy SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  3. 3. Why SOLAR Energy? GHTS AND THE ONLY REASON IS BECAUSE …………………. THERE IS GARDEN LIG NO ARSTREET/G PLANET “B” or “C”… SOLA ……..Coal, Oil and other SOURCES OF ENERGY AS WE KNOW OF TODAY WILL EVENTUALLY RUN OUT SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  4. 4. Sharing a little we know Solar energy is a completely renewable resource This means that even when we GHTS resource. cannot make use of the sun’s power because of nighttime or cloudy and stormy days, we can always rely on the sun showing up the very next day as a constant and consistent power source. GARDEN LIG Oil, which is what most people currently use to power their homes, is not a renewable resource. This means that as soon as the oil is gone, it is gone forever d ill l h ARSTREET/G and we will no longer have power or energy. Solar cells make absolutely no noise at all. They do not make a single peep while extracting useful energy from the sun On the other hand the giant machines SOLA sun. hand, utilized for pumping oil are extremely noisy and therefore very impractical. Very little maintenance is required to keep solar cells running. There are no moving parts in a solar cell, which makes it impossible to really hurt them. Solar cells tend to last a good long time with only an annual cleaning to worry about. Solar powered panels and products are typically extremely easy to install. Wires, cords and power sources are not needed at all, making this an easy prospect to employ employ. SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  5. 5. Sharing a little we know and a little more GHTS Photovoltaics, or PV for short, is a solar power technology that uses solar panels to convert light from the sun directly into electricity. This Endless Energy resource (the Sun) will remain more or less the GARDEN LIG way it is now for about another 5 billion years ARSTREET/G How it works; Solar lights use photovoltaic cells that absorb sunlight during the day SOLA and turn it into energy. Rechargeable batteries store the energy, making it available at night when it is needed. LED (light emitting diode) bulbs, which require little power and last 10 times longer than incandescent bulbs, provide the illumination. There is no wiring necessary to connect the lights to each other or to the electric grid. = Electricity SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  6. 6. A Little math would be in place too….. I ld d b 300 600 900 L bl di h i i GHTS It would need about or 600or Lumens at reasonable distance to cover the premises is debatable …. But we do need light.Which is not debatable.. Lets Assume that for a single Light ….. 1 GARDEN LIG Luminary * 12W(LED) (Providing about 1000 Lumens) Used for 8 hours = 84 W per night.. Each Village needing 20 Lamps M thl ti 50 5K h(U it ) ARSTREET/G Monthly consumption 84* 30*20 = 50.5 Kwh (Units) Annually 600 Kw… in Energy alone for a single village Cost of Electricity on an average in India INR 6 per unit INR 3600/‐ l / SOLA Annual Expenses = INR 3600/‐ An investment of Rs 10,000 will give you free electricity for ……….near 25 years…. Return on investment is about 3 Years 600,000 villages As per the 2011 Census IF WE INTEND TO LIGHT 10 % OF THESE VILLAGES…….6000 VILLAGES Energy Needed = 6000 * 600= 3600MW at a cost of INR ` 2 16 crores annually SIMPLIFYING SOLAR STREET LIGHTS 2.16 CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  7. 7. COMPARATIVE Comparison GHTS Chart LED Lights vs. Incandescent Light Bulbs vs. CFLs (LEDs) Incandescent Bulbs Compact Fluorescents (CFLs) GARDEN LIG Energy Efficiency & Energy Costs ARSTREET/G Life Span (average) 50,000 hours 1,200 hours 8,000 hours Watts of electricity 6 ‐ 8 watts 60 watts 13‐15 watts used SOLA Light Output Lumens Watts Watts Watts 450 4 to 5 40 6 to 8 800 8 to 9 60 13‐15 1,100 9 to 13 75 18‐25 1,600 16‐20 100 23‐30 2,600 25‐28 150 30‐55 SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  8. 8. Energy Efficiency & Energy Costs GHTS Comparison Chart LED Lights vs. Incandescent Light Bulbs vs. CFLs (Incandescent Bulbs Compact Fluorescents GARDEN LIG LEDs) p (CFLs) Energy Efficiency & ARSTREET/G Energy Costs Kilo‐watts of Electricity SOLA used (30 Incandescent Bulbs per year equivalent) 329 KWh/yr. 3285 KWh/yr. 767 KWh/yr. Annual Operating Cost (30 Incandescent Bulbs per year equivalent) @ `6 Kwh ` 1974 ` 19710 ` 4602 /SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  9. 9. ENVIRONMENTAL IMPACT GHTS Comparison Chart LED Lights vs. Incandescent Light Bulbs vs. CFLs (LEDs) Incandescent Bulbs Compact Fluorescents (CFLs) GARDEN LIG Energy Efficiency & Energy Costs ARSTREET/G Contains the TOXIC Mercury No No Yes ‐ Mercury is very toxic to your health and the environment contains 1mg 5mg of SOLA RoHS Compliant Yes Yes No ‐ 1mg‐Mercury and is a major risk to the environment Carbon Dioxide Emissions (30 bulbs per 451 pounds/year 4500 pounds/year 1051 pounds/year year) CARBON FOOTPRINT SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  10. 10. IMPORTANT FACTS Comparison Chart Important facts GHTS LED Lights vs. Incandescent Light Bulbs vs. CFLs (LEDs) Incandescent Bulbs (CFLs) Energy & GARDEN LIG Efficiency Energy Costs Sensitivity to low temperatures None Some Yes ‐ may not work under negative 10 degrees Fahrenheit ARSTREET/G or over 120 degrees Fahrenheit Sensitive to humidity No Some Yes On/off Cycling No Effect Some Yes ‐ can reduce lifespan d ti ll Switching a CFL on/off quickly, in SOLA a closet for instance, may drastically decrease the lifespan of the bulb. Turns on instantly Yes Yes No ‐ takes time to warm up Durability Very Durable ‐ LEDs can handle Not Very Durable ‐ glass or Not Very Durable ‐ glass can jarring and bumping filament can break easily break easily Heat Emitted 3.4 btu's/hour 85 btu's/hour 30 btu's/hour Failure Modes Not typical Some Yes ‐ may catch on fire, smoke, or omit an odor SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  11. 11. A Little math would be in place too….. 600,000 villages As per the 2011 Census GARDEN LIGHTS IF WE INTEND TO LIGHT 10 % OF THESE VILLAGES…….6000 VILLAGES Energy Needed = 6000 * 600= 3600MW At a cost of INR ` 2.16 crores annually ARSTREET/G Not considered here is transmission cost laying of cables and the manpower need to maintain the same day after day.. SOLA A SOLAR LIGHT WOULD SOLVE THE TASK SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  12. 12. Benefits GHTS • NO CABLES • NO SHOCKS GARDEN LIG • NO DEPENDENCE ON GRID ELECTRICITY • NO POWER CUTS • NO DARKNESS ARSTREET/G • NO MAINTENANCE • WATER PROOF SYSTEMS • AUTOMATIC ON AND OFF AS PER LIGHT CONDITIONS SOLA CONDITIONS. SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  13. 13. GENERAL BENEFITS of LED STREET LIGHTS Less energy consumption LED street lights use 40‐80% less electricity and have at least 5 times the life expectancy than regular High P S di (HPS) fi LED l 7 i ffi i h i d d i Pressure Sodium fixtures. lamps are times more energy efficient than incandescent and twice as efficient as fluorescent lamps. GHTS Higher efficiency and low light pollution due to directional light g y g p g LED street lights with a lower lumen output can replace conventional lamps with a higher output. For example, a 30W LED street light can often replace an 80W High Pressure Sodium lamp. The reason for this is directionality. LED street lamps are very directional and the light output is much more even then by other street lamps. Also there is little or no hot spot under the LED lamp. The light emitted from the LED lamp is GARDEN LIG ARSTREET/G directed downwards, spread throughout the entire area it covers. This means that a lower amount of light is needed to properly illuminate the area. This also dramatically reduces light pollution, which affects the mood of human beings, navigation in birds and insects, mating behavior in animals and flowering in plants. SOLA Long life – up to 100.000 hours LED street lights last much longer than conventional lamps (3 to 8 times longer). This results in less expense in replacing the lights themselves but also the labor to replace the lamp is needed less often. This provides a great cost savings by itself. Also the loss of brightness or lumen depreciation is slower over the life of an LED lamp than that of a sodium or other lamp. So not only does the LED have a longer life span than the conventional lamp, but it stays brighter longer than other lamps. The long life span reduces maintenance expenses and makes these bulbs particularly suitable for difficult to reach locations and for streetlights where maintenance costs can be significant. SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  14. 14. GENERAL BENEFITS of LED STREET LIGHTS Reducing carbon footprint GHTS The carbon footprint of LED street lights is smaller than other lights due to lower energy usage. Moreover LEDs last 4 to 10 times longer than any other bulbs, further reducing the carbon footprint of manufacture over the life time. Dark sky friendly GARDEN LIG y y Because of the directional light, light is carefully distributed exactly where it is meant to go and therefore there is no or little light which is wasted by illuminating the night sky. This is a considerable plus especially if the local community has a Darksky Initiative. Natural light specter – Color Rendering Index LED t tl ith l t t 3 500 4 200 K d i t lli ht th th ll f ARSTREET/G street lamps with color temperature 3.500‐4.200 are rendering more natural light than the yellow of sodium lamps or green of flourescent streetlights. Alsono UV or IR radiation is emitted from the LED street lamps. Color rendering index (CRI) is high (80‐90) and displays natural colors of illuminated objects. Free of harmful substances and lower environmental impact when used up LED luminaires contain no harmful substances, like mercury, lead or other hazardous chemical and gasses. SOLA Spent LED lamps can be thrown away without any special handling or disposal requirement,since they are recyclable and environmentally friendly. Other light often have hazardous materials such as lead and mercury which require special handling and waste management procedures which have both economic and environmental costs. Easily controllable The light is easily controllable with intelligent systems. The light can be turned on and off instantly and can be dimmed for added energy savings at dawn, dusk, and also during hours of low traffic. Switching on‐off and dimming does not affect the life‐time of the luminaire as in the case of CFL lights. SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  15. 15. Garden Light Solutions SOLAR STREET/GARDEN LIGHTS SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  16. 16. LIGHT SOLUTIONS SOLAR STREET/GARDEN LIGHTS SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  17. 17. SSTL SOLAR STREET LIGHTS SOLAR STREET/GARDEN LIGHTS SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM
  18. 18. Garden Lights SOLAR STREET/GARDEN LIGHTS SIMPLIFYING SOLAR STREET LIGHTS CENTRE FOR APPLICATION OF RENEWABLE ENERGY WEBSITE : HTTP://WWW.CARE‐INDIA.COM EMAIL CARE@CARE‐INDIA.COM

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