Energy-Saving Lighting Options

1. Energy-Saving Lighting Options

2. 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

3. Three Types of Lighting • Ambient Lighting • Task Lighting • Accent Lighting

4. 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

5. 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

6. 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

7. Light Output

8. Light Output • Quality of CFLs is a concern for consumers • Two factors affect light’s 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

9. 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

10. 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

11. 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

12. 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

13. 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

14. 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

15. 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

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

17. 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/

18. 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