Energy-Saving Lighting Options

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Energy-Saving Lighting Options
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Lighting Facts

• Accounts for 20 to 25 of all electricity used
• Average household spends 5 to 10 on lighting
• More energy used for lighting than to run a
  refrigerator
• Increasing lighting efficiency will decrease
  energy bills

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Three Types of Lighting

• Ambient Lighting
• Task Lighting
• Accent Lighting

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Fluorescent Lighting

• Used mainly for ambient task lighting
• 3 to 4 times as efficient as incandescents
• Can last 10,000 hours
• Quite different today than in the past
• Provide a wider range of color quality

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Fluorescent Lighting

• Work well in new or existing fixtures indoors
  or outdoors
• Check CFL packaging for any restrictions in use
• Some should not be used in enclosed fixtures
• Many are made for specific fixtures

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Light Output

• Lumens measure light output
• Watts measure energy
• Example
• 100 watt incandescent 1,710 lumens
• 17 watts per lumen 17 LPW
• 29 watt CFL 1,750 lumens
• 63 watts per lumen 63 LPW

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Light Output
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Light Output

• Quality of CFLs is a concern for consumers
• Two factors affect lights harshness
• Color Rendering Index (CRI) measures on a scale
  of 0 to 100 the perceived color of objects under
  artificial light
• Color Correlated Temperature (CCT) measures in
  Kelvin (K) the appearance of the light itself
  how warm or cool it seems

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Color Correlated Temperature Ranges

• CFLs are available in a variety of CCT ranges
• Warm White or Soft White 2700 K 3000 K
• White, Bright White, or Medium White 3500
  K
• Cool White 4100 K
• Daylight 5000 K 6500 K

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Light Output Cost Comparisons

• Some LED lighting is a less ideal replacement for
  traditional lighting sources because of
• Low light output
• Higher cost
• Color differences

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Light Output Cost Comparisons

• LED lighting is a good alternative for some
  lighting applications
• Outdoor lighting landscaping or holiday lights
  can benefit from LED durability
• Longevity of LED lights is a benefit for lights
  that stay on for long periods or are installed in
  hard-to-reach places

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Simple Ways to Conserve Energy Through Lighting

• Use daylight for indoor lighting
• Maintain lighting to enhance efficiency
• Turn off lights
• Clean or repaint small rooms
• Select light-colored or translucent lampshades
• Decorate with lighter colors

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Simple Ways to Conserve Energy Through Lighting

• Place lamps in corners to reflect light
• Use dimmers, timers, motion detectors
• Replace halogen torchieres with Energy Star
  torchieres
• Use solar lights powered by photovoltaics
• Use task lighting
• Buy dedicated CFL fixtures
• Use low watt CFLs or an LED for nightlights

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CFL Disposal Closing the Loop

• Mercury is an essential component of CFLs
• No mercury released from CFLs when bulbs are
  intact or in use
• EPA recommends taking advantage of local
  recycling options for CFLs
• EPA is working with CFL manufacturers major US
  retailers to expand disposal options

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Change A Light, Change the World!

• Replacing one incandescent with an Energy Star
  CFL can
• Save enough energy to light 7 million homes
• Would result in a total savings of 600 million
  in utility bills
• Replacing five most used light bulbs with Energy
  Star CFLs can
• Save you 60 per year in energy costs
• Result in a total savings of 8 billion per year
• Prevent greenhouse gases equivalent to emissions
  from nearly 10 million cars

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Energy-Saving Lighting Options
Compiled Deborah J. Taylor NC Cooperative
Extension Orange County Center
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Web Resources

• Consumer Guide to Home Energy Savings
• www.aceee.org/consumerguide/lighting.htm
• Energy Star
• www.energystar.gov
• Energy Hog
• www.EnergyHog.org
• E-Conservation
• http//e-conservation.net/

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This presentation was produced by North Carolina
Cooperative Extension, Department of 4H Youth
Development and Family and Consumer Sciences with
funding from the State Energy Office, N.C.
Department of Administration