Efficient lighting by jolinmilioncherie


									 Change a Light,
Change the World
   Light Changing
As a Spiritual Practice
Unitarian Universalists
     Home Energy For Lighting

 About 2/3 of the electricity used in homes was
  used to operate appliances, refrigerators, and

 Lighting typically accounts for 5 -10% of total
  energy use in a home.

 Our current lighting converts most of the energy to
              Lights 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.
   New 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.
          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.
  Reduce 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
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 Alternatives

    Incandescent
    Halogen
    Compact fluorescent
    Tube Fluorescent

  LED
 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 lights
 Not much more efficient than incandescent-
  same principle
 Extreme high temps- safety hazard
 Popular touchier standing lamps are inefficient
          Compact 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
 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?
• 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

• So, is legislation necessary to force the change?
Assemblyman Lloyd Levine thinks so.
Types of CLF Bulbs Available
                Full 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
How to Choose a CLF Light Bulb

       Lumens
       Color Temperature
       Color Rendering
                How to Choose

 Lumens represents the amount of light emitted by a light
 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 Efficacy
                       How 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".
                    How to Choose
    Color Rendering

   Relates to the way objects
    appear under a given light
   CRI = "color rendering index."
   A low CRI indicates than objects
    may appear unnatural under the
   A high CRI rating will allow an
    object's colors to appear more
   For lights with a "warm" color
    temperature the reference point
    is an incandescent light.
   For lights with a cool color
    temperature the reference is
ULA Dimmable Lamp

          Lumens = 1600

          Color Temp =
           2700K - 29000 K

          Color Rendering = 83
       Tube flourescent lighting

   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 Bulbs
          Especially 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!
               (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)
LED 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
              Exit Sign Retrofit
 Uses 1 watt of Energy
  per lamp
 Can retrofit existing
 www.smartlite.net/led.htm
              LED Desk Lamps
                                 Long life.
                                 Maintenance free.
                                 No bulb replacement
                                 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
  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!
 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
   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
     1.   The kitchen ceiling light
     2.   The living room table
     3.   Living room floor lamps
     4.   Bathroom vanity, and
     5.   Outdoor porch lamp.
   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
        SCE emulates UU Visalia
Southern California Edison Proposes Providing
Energy-Saving Compact Fluorescent Bulbs to
1 Million Low-Income Homes

Thursday April 12, 9:00 am ET

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 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.
                   On 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

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