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FARM ENERGY

FARM ENERGY . Energy Fundamentals for Farm Lighting Farm Energy PM 2089N. FARM ENERGY . (USDA Census of Agriculture, 2007). PM 2089N. FARM ENERGY . Proper lighting should: Provide a safe, effective working environment Deliver proper light level for animals Be energy efficient

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FARM ENERGY

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  1. FARM ENERGY Energy Fundamentalsfor Farm Lighting Farm Energy PM 2089N

  2. FARM ENERGY (USDA Census of Agriculture, 2007) PM 2089N

  3. FARM ENERGY • Proper lighting should: • Provide a safe, effective working environment • Deliver proper light level for animals • Be energy efficient • Be cost effective PM 2089N

  4. FARM ENERGY Lumens: • Quantity of light output (lm) Average rated life: • Number of hours for half of the bulbs to burn out in lab tests PM 2089N

  5. FARM ENERGY Efficiency: • Lumens/Watt • Example: • 1200 lm/20 W = 60 PM 2089N

  6. FARM ENERGY Foot-candles (fc): • Level of light at a working surface • One fc is amount of illumination from a candle falling on a surface at a distance of one foot PM 2089N

  7. FARM ENERGY Incandescent • Most common currently • Least energy efficient • Cheapest initial cost • Shortest life • Being phased out from retail • 100 W – Jan 1, 2012 • 75 W – Jan 1, 2013 • 60 & 40 W – Jan 1, 2014 PM 2089N

  8. FARM ENERGY Compact Fluorescent (CFL) • 10 times more life than incandescent • 75% less energy usage • Should be rated for moist and dusty environment • Enclosure globes can shorten life PM 2089N

  9. FARM ENERGY Light Emitting Diodes (LED) • Five times more efficient than incandescent • Long rated life (near 100,000 hrs) • Directional lighting • Currently limited in damp or dusty environments • Improving efficiency and costs every six months… stay tuned PM 2089N

  10. FARM ENERGY Tube Fluorescent • T 12 (1.5” diameter) • Phasing out (bulbs July 2012) • T 8 (1” diameter) • 4x more efficient than incandescent • < 12’ off floor • Mount electromagnetic ballast in weatherproof fixtures • T 5 (0.6” diameter) • Shorter and more efficient than T8 • Only good in clean-dry environments currently PM 2089N

  11. FARM ENERGY • Economic comparison example: • 23 W CFL (1600lm) vs. 100 W incandescent (1580 lm) • Used 8 hours per day (2920 hrs) • Electricity is $0.10/kWh PM 2089N

  12. FARM ENERGY • 23 W CFL (1600lm) vs. 100 W incandescent (1580 lm) • Used 8 hours per day (2920 hrs) • Electricity is $0.10/kWh

  13. FARM ENERGY • 23 W CFL (1600lm) vs. 100 W incandescent (1580 lm) • Used 8 hours per day (2920 hrs) • Electricity is $0.10/kWh

  14. FARM ENERGY • Summary: • Adequate light level is important to meet basic needs in facilities in a safe manner • There are multiple options for efficient indoor lighting • Be aware of the impact of dust and humidity on light in your lighting decision • Include initial cost of wiring and fixtures when looking for cost savings • Appropriate disposal measures should be taken PM 2089N

  15. FARM ENERGY • For More Information: • Google “ISU farm energy” or visit us online at • http://farmenergy.exnet.iastate.edu • Download ISU Farm Energy publications at no charge • Follow us on Twitter @ISU_Farm_Energy for updates • Ask your local utility provider to contact us! http://farmenergy.exnet.iastate.edu

  16. FARM ENERGY http://farmenergy.exnet.iastate.edu

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