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Change a Light, Change the WorldChange a Light,
Change the World
Light Changing
As a Spiritual Practice
For
Unitarian Universalists
Light Changing
As a Spiritual Practice
For
Unitarian Universalists
Home Energy For LightingHome Energy For Lighting
About 2/3 of the electricity used in homes was used to operate appliances, refrigerators, and lights
Lighting typically accounts for 5 -10% of total energy use in a home.
Our current lighting converts most of the energy to heat
About 2/3 of the electricity used in homes was used to operate appliances, refrigerators, and lights
Lighting typically accounts for 5 -10% of total energy use in a home.
Our current lighting converts most of the energy to heat
Lights vs. AutosLights vs. Autos
The energy used in the average home can be responsible for more than twice the greenhouse gas emissions of the average car.
If every American home had just a single compact fluorescent bulb, it could reduce climate-changing gas emissions as much as taking 1.3 million cars off the road, by cutting demand for electricity from power plants.
The energy used in the average home can be responsible for more than twice the greenhouse gas emissions of the average car.
If every American home had just a single compact fluorescent bulb, it could reduce climate-changing gas emissions as much as taking 1.3 million cars off the road, by cutting demand for electricity from power plants.
New Lights = New EfficiencyNew Lights = New Efficiency
ENERGY STAR qualified lighting provides bright, warm light but uses at least:– 2/3 less energy than standard lighting– generates 70 percent less heat, and – lasts up to 10 times longer.
ENERGY STAR qualified lighting provides bright, warm light but uses at least:– 2/3 less energy than standard lighting– generates 70 percent less heat, and – lasts up to 10 times longer.
SMALL CHANGES = BIG CHANGE
SMALL CHANGES = BIG CHANGE
If every American home changed out just five high-use light fixtures or the bulbs in them with ones that have earned the ENERGY STAR, each family would save at least $60 every year in energy costs, and together we’d save about $6.5 billion each year in energy costs and prevent greenhouse gases equivalent to the emissions from more than 8 million cars.
If every American home changed out just five high-use light fixtures or the bulbs in them with ones that have earned the ENERGY STAR, each family would save at least $60 every year in energy costs, and together we’d save about $6.5 billion each year in energy costs and prevent greenhouse gases equivalent to the emissions from more than 8 million cars.
Reduce Greenhouse GasReduce Greenhouse Gas
Using a 20 watt CFL instead of a 75-watt incandescent will result in saving 1,300 pounds of carbon dioxide over the life the bulb.
Australia Mandates use of CFLs by 2012
Australia Mandates use of CFLs by 2012
The Australian government has announced plans to phase out incandescent light bulbs and replace them with more energy-efficient compact fluorescent bulbs across the country.
Legislation to gradually restrict the sale of the old-style bulbs could reduce Australia's greenhouse gas emissions by 4 million tons by 2012 and cut household power bills by up to 66 percent.
Lighting AlternativesLighting Alternatives
Incandescent Halogen Compact fluorescent Tube Fluorescent
LED
Incandescent Halogen Compact fluorescent Tube Fluorescent
LED
IncandescentsIncandescents
Large energy users Red colored light Short life < 1000 hrs Cheap- under $1 ea. 90 % of energy used is heat;
only 10% of the energy is used for light Forces need for extra cooling in summer Light is created through heating metal $.75 bulb costs $6.00 to operate for 750 hrs.
Large energy users Red colored light Short life < 1000 hrs Cheap- under $1 ea. 90 % of energy used is heat;
only 10% of the energy is used for light Forces need for extra cooling in summer Light is created through heating metal $.75 bulb costs $6.00 to operate for 750 hrs.
Halogen lightsHalogen lights Not much more efficient than incandescent-
same principle Extreme high temps- safety hazard Popular touchier standing lamps are inefficient
Not much more efficient than incandescent- same principle
Extreme high temps- safety hazard Popular touchier standing lamps are inefficient
Compact flourescentsCompact flourescents Low wattage - use 1/4-1/3 the
energy of incandescents – 23 W = 100 W
Last 10 X longer:– 10,000 - 20,000 hrs
Most now fit incandescent fixtures Short term larger expense:
– $5 - 20 Light is created through electrifying
gases Modular ballasts available Must be recycled
Low wattage - use 1/4-1/3 the energy of incandescents – 23 W = 100 W
Last 10 X longer:– 10,000 - 20,000 hrs
Most now fit incandescent fixtures Short term larger expense:
– $5 - 20 Light is created through electrifying
gases Modular ballasts available Must be recycled
So why don’t more people buy them?
So why don’t more people buy them?
• Higher initial price:"People just are not willing to pay more
money."
• Despite many years of utility companies offering discounts and rebates for the energy-efficient lamps, one study released in 2006 showed only 2 percent of the nation's lighting market is made up of compact fluorescents. • California's numbers are better, but only comes in around 5 percent.
• So, is legislation necessary to force the change? Assemblyman Lloyd Levine thinks so.
Types of CLF Bulbs AvailableTypes of CLF Bulbs Available
Full spectrumFull spectrum Provides a full spectrum of light, all the colors Most natural form of artificial light Health benefits Color vision improvement-
91-98% on the color
rendering scale
Provides a full spectrum of light, all the colors Most natural form of artificial light Health benefits Color vision improvement-
91-98% on the color
rendering scale
How to Choose a CLF Light BulbHow to Choose a CLF Light Bulb
Lumens Color Temperature Color Rendering
Lumens Color Temperature Color Rendering
How to ChooseHow to Choose
Lumens represents the amount of light emitted by a light source. Recommended light levels will vary based on the person and the
task. When purchasing light bulbs, however, don't assume that more
watts means more light. Only more lumens means more light.
Lumens represents the amount of light emitted by a light source. Recommended light levels will vary based on the person and the
task. When purchasing light bulbs, however, don't assume that more
watts means more light. Only more lumens means more light.
Lumens and EfficacyLumens and Efficacy
How to ChooseHow to Choose
Color Temperature
Correlated color temperature (CCT) (Degrees Kelvin).
Relates to the color of light produced by a light source.
Imagine a piece of tungsten metal being heated. As it is heated the color of the metal will gradually shift from red to orange to yellow to white to bluish white.
The color of light is measured along this scale, with the more orange color light being referred to as "warm white" and the whiter color light being referred to as "cool white".
Color Temperature
Correlated color temperature (CCT) (Degrees Kelvin).
Relates to the color of light produced by a light source.
Imagine a piece of tungsten metal being heated. As it is heated the color of the metal will gradually shift from red to orange to yellow to white to bluish white.
The color of light is measured along this scale, with the more orange color light being referred to as "warm white" and the whiter color light being referred to as "cool white".
How to ChooseHow to Choose
Color Rendering
Relates to the way objects appear under a given light source.
CRI = "color rendering index." A low CRI indicates than
objects may appear unnatural under the source.
A high CRI rating will allow an object's colors to appear more natural.
For lights with a "warm" color temperature the reference point is an incandescent light.
For lights with a cool color temperature the reference is sunlight.
Color Rendering
Relates to the way objects appear under a given light source.
CRI = "color rendering index." A low CRI indicates than
objects may appear unnatural under the source.
A high CRI rating will allow an object's colors to appear more natural.
For lights with a "warm" color temperature the reference point is an incandescent light.
For lights with a cool color temperature the reference is sunlight.
ULA Dimmable LampULA Dimmable Lamp
Lumens = 1600
Color Temp = 2700K - 29000 K
Color Rendering = 83
Lumens = 1600
Color Temp = 2700K - 29000 K
Color Rendering = 83
Tube flourescent lightingTube flourescent lighting
Improved dramatically in last 10 yrs Great for indirect lighting Now have electronic ballasts Mercury is used Can come in full spectrum
Improved dramatically in last 10 yrs Great for indirect lighting Now have electronic ballasts Mercury is used Can come in full spectrum
Recycle ALL Light BulbsEspecially CFLs
Recycle ALL Light BulbsEspecially CFLs
Fluorescent lights have a bit of mercury in them. They have less today than 10 years ago.Lamps manufactured in 2001 have abut 8 milligrams, or about 100 times less mercury than is contained in a typical 700-milligram fever thermometer.
Although CFLs have mercury, they use less energy, which means less mercury emissions from power plants. Even incandescent bulbs & LEDs have lead, so all light bulbs should be recycled or disposed as hazardous waste anyway!
After use, all light bulbs should be recycled or disposed as hazardous waste - whether they are CFLs or regular incandescent bulbs!
Fluorescent lights have a bit of mercury in them. They have less today than 10 years ago.Lamps manufactured in 2001 have abut 8 milligrams, or about 100 times less mercury than is contained in a typical 700-milligram fever thermometer.
Although CFLs have mercury, they use less energy, which means less mercury emissions from power plants. Even incandescent bulbs & LEDs have lead, so all light bulbs should be recycled or disposed as hazardous waste anyway!
After use, all light bulbs should be recycled or disposed as hazardous waste - whether they are CFLs or regular incandescent bulbs!
LED(light emitting diode)
LED(light emitting diode)
Breakthrough design Great for task lighting Almost no heat created Low wattage - 1.6 to 3 W Same light as an incandescent with
10% of the energy Last 100,000 hrs (12 - 20 yrs)
Breakthrough design Great for task lighting Almost no heat created Low wattage - 1.6 to 3 W Same light as an incandescent with
10% of the energy Last 100,000 hrs (12 - 20 yrs)
LED Exit LightsLED Exit Lights
Exit signs must stay on at all times.
This 3-watt LED exit sign will save $50 per sign, per year, over older units that use more than 50 watts per sign.
Exit signs must stay on at all times.
This 3-watt LED exit sign will save $50 per sign, per year, over older units that use more than 50 watts per sign.
Exit Sign RetrofitExit Sign Retrofit
Uses 1 watt of Energy per lamp
Can retrofit existing signs
www.smartlite.net/led.htm
Uses 1 watt of Energy per lamp
Can retrofit existing signs
www.smartlite.net/led.htm
LED Desk LampsLED Desk Lamps
Long life. Maintenance free. No bulb replacement
needed. LED lamps consume less
then 5 watts. Cool to the touch. Environmentally friendlier,
LEDs contain no mercury or toxic gases.
Durable and shock resistant.
Long life. Maintenance free. No bulb replacement
needed. LED lamps consume less
then 5 watts. Cool to the touch. Environmentally friendlier,
LEDs contain no mercury or toxic gases.
Durable and shock resistant.Sylvania Brilliance Desk Lamp
Other Things You Can Do To Maximize Light Efficiency
Other Things You Can Do To Maximize Light Efficiency
Light colored walls Daylighting High occupancy rooms should have at
least one window Larger rooms should have windows on
more than one side Rely more on task lighting Turn inside lights off, go outside and
gaze in wonder at Nature’s ultimate sustainable lights: the stars!
Light colored walls Daylighting High occupancy rooms should have at
least one window Larger rooms should have windows on
more than one side Rely more on task lighting Turn inside lights off, go outside and
gaze in wonder at Nature’s ultimate sustainable lights: the stars!
ControlsControls
Turn lights off when you leave a room Generally one light on per person in the room
provides lighting flexibility and cuts energy cost Switches Occupancy sensors switch
lights off when there is no one in the room
Motion detector
Turn lights off when you leave a room Generally one light on per person in the room
provides lighting flexibility and cuts energy cost Switches Occupancy sensors switch
lights off when there is no one in the room
Motion detector
REPLACE 5 MOST USEDREPLACE 5 MOST USED
To save the most energy and money, replace your highest used light bulbs with energy-efficient models.
The five highest use fixtures in a home are typically:
1. The kitchen ceiling light
2. The living room table
3. Living room floor lamps
4. Bathroom vanity, and
5. Outdoor porch lamp.
To save the most energy and money, replace your highest used light bulbs with energy-efficient models.
The five highest use fixtures in a home are typically:
1. The kitchen ceiling light
2. The living room table
3. Living room floor lamps
4. Bathroom vanity, and
5. Outdoor porch lamp.
Our Environmental Justice Project
Our Environmental Justice Project
1 of 12 Green Sanctuary projects Chose the Tulare County community of London
because like our Fellowship, it was small: population ~ 2,000
We’re donating 1,000 CFLs to London residents Education: Higher initial price, but overall savings
1 of 12 Green Sanctuary projects Chose the Tulare County community of London
because like our Fellowship, it was small: population ~ 2,000
We’re donating 1,000 CFLs to London residents Education: Higher initial price, but overall savings
SCE emulates UU VisaliaSCE emulates UU VisaliaSouthern California Edison Proposes Providing Energy-Saving Compact Fluorescent Bulbs to 1 Million Low-Income HomesThursday April 12, 9:00 am ET
ROSEMEAD, Calif.--(BUSINESS WIRE)--Southern California Edison (SCE) will ask state regulators for authorization to provide 1 million low-income households with a complimentary set of six compact fluorescent light bulbs (CFL) to help families reduce lighting costs.
"Achieving California's groundbreaking greenhouse gas (GHG) reduction goals will require big, bold energy initiatives and strong partnerships between the state, its utilities, and residential and business customers," said Michael R. Peevey, president of the California Public Utilities Commission.
Earth Day PledgeEarth Day Pledge
I, ________________________, a member or friend of Unitarian Universalist Fellowship of Visalia, pledge to do the following for Earth Day 2007:– 1. Replace three or more of the most used lights
in my home with Energy Star Compact or Tube Fluorescent lights.
– 2. Ask three friends or family to replace three or more of the most used lights in their home with Energy Star Compact Fluorescent lights.
I, ________________________, a member or friend of Unitarian Universalist Fellowship of Visalia, pledge to do the following for Earth Day 2007:– 1. Replace three or more of the most used lights
in my home with Energy Star Compact or Tube Fluorescent lights.
– 2. Ask three friends or family to replace three or more of the most used lights in their home with Energy Star Compact Fluorescent lights.
On the BackOn the Back
On the back of the Pledge form, write ONE personal action you will take in addition:
Examples:– Bike or use transit to work one day a week– Turn off lights and unplug the TV & computers– Buy local & organic produce at farmer’s market– Eat less meat; try vegetarian or vegan alternatives– Use a programmable thermostat– Buy carbon offsets– Ask your congressional representatives to raise fuel
economy standards to 40 miles per gallon
On the back of the Pledge form, write ONE personal action you will take in addition:
Examples:– Bike or use transit to work one day a week– Turn off lights and unplug the TV & computers– Buy local & organic produce at farmer’s market– Eat less meat; try vegetarian or vegan alternatives– Use a programmable thermostat– Buy carbon offsets– Ask your congressional representatives to raise fuel
economy standards to 40 miles per gallon
