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By Anna Guyton <br />Energy Savings with Newer Fluorescent Bulbs<br />
Purpose<br /><ul><li> Help UW achieve the Presidential Climate Commitment
Energy-efficient appliance purchasing policy
Offer a cost-benefit analysis of replacing older, inefficient fluorescent bulbs </li></li></ul><li>Approach<br /><ul><li> ...
Assess current energy usage and costs
Research differences in fluorescent bulb energy usage and cost
Determine costs and benefits of upgrading to more efficient bulbs </li></li></ul><li>Problem<br /><ul><li>WRI Building
T12 lamps
Cut down energy use somehow
Save money & energy
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Fluorescent Bulb Assessment

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As part of an initiative to increase campus sustainability at UW, I did a study on fluorescent bulbs and the costs and benefits of upgrading to more energy-efficient lighting.

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Transcript of "Fluorescent Bulb Assessment"

  1. 1. By Anna Guyton <br />Energy Savings with Newer Fluorescent Bulbs<br />
  2. 2. Purpose<br /><ul><li> Help UW achieve the Presidential Climate Commitment
  3. 3. Energy-efficient appliance purchasing policy
  4. 4. Offer a cost-benefit analysis of replacing older, inefficient fluorescent bulbs </li></li></ul><li>Approach<br /><ul><li> Find out where more energy-efficient solutions could be applied on campus
  5. 5. Assess current energy usage and costs
  6. 6. Research differences in fluorescent bulb energy usage and cost
  7. 7. Determine costs and benefits of upgrading to more efficient bulbs </li></li></ul><li>Problem<br /><ul><li>WRI Building
  8. 8. T12 lamps
  9. 9. Cut down energy use somehow
  10. 10. Save money & energy
  11. 11. Reduce pollution
  12. 12. Reduce contribution to global warming</li></li></ul><li>Findings<br /><ul><li> Bulb types in WRI building
  13. 13. T12 – magnetic ballast
  14. 14. T8 – electronic ballast
  15. 15. T5 - electronic ballast
  16. 16. Number of bulbs left lit 24/7
  17. 17. Safety Code – 3 foot-candles
  18. 18. Light meter results
  19. 19. T5 = 3x T8 = 4x T12
  20. 20. Under T5: 83 foot-candles 10 ft. away: 5 foot-candles
  21. 21. Under T12: 20 foot-candles 10 ft. away: 0.5 foot-candles
  22. 22. Only need to replace 8 out of 21 fixtures </li></li></ul><li>Costs<br /><ul><li>Price of bulbs, fixtures: <$700
  23. 23. Price of labor (electronics contractor): ~$140
  24. 24. Recycling old lamps: ~$6
  25. 25. Total cost: ~$850 </li></li></ul><li>Benefits<br /><ul><li> Energy savings: ~$365 per year
  26. 26. Energy usage: -3500 kW per year
  27. 27. Better color rendition
  28. 28. No lamp flicker
  29. 29. Maintain brightness over time
  30. 30. Last much longer (save on replacement)
  31. 31. No new wiring is necessary</li></li></ul><li>Summary<br /><ul><li> Better light quality
  32. 32. Cost savings: pay for itself in 2 years
  33. 33. Long-run replacement cost lower
  34. 34. Energy savings: priceless </li></li></ul><li>Future Suggestions<br /><ul><li> Other buildings – similar study
  35. 35. Study on other appliances than fluorescent bulbs
  36. 36. Study an entire building (offices included)
  37. 37. Use this basic data to encourage more sustainable, efficient energy options across campus</li></li></ul><li>Conclusions <br /><ul><li>New buildings - new technology
  38. 38. Longer we wait, more money lost, more energy wasted
  39. 39. Upfront costs vs. Long-term benefits
  40. 40. On the right track
  41. 41. Start small – work toward a better future for UW
  42. 42. Environmentally
  43. 43. Socially
  44. 44. Economically </li>
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