Make lighting better and more efficient

[msimerson]

background

• We have many 4' fixtures with a hodgepodge of florescent and direct LED replacements
• Most fixtures are producing significantly fewer lumens than their "new" capacity but still consuming as many watts.
• There are many incandescent bulbs.
  • less critical since the "waste heat" warms the lodge.
  • also cheap to replace, since SCL subsidizes them
• The fluorescents and direct LEDs in the cat house and zoo are particularly poor at delivering lumens
  • Alex, upon seeing me heading into the zoo with new bulbs, "Are you replacing the bulbs in there?" I replied, "Yes." Alex said with relief, "Thank god!"

goals

• more lumens
• less kWh
• use good judgement on cost/benefit

plan

• Replace the fixtures in the commons area with new 4' LED fixtures replace light fixtures in the commons area with LEDs #3
• Replace the bulbs in every other 4' fixture with LED bulbs Upgrade 4' fixtures to direct-wired LED #4
  • (35) fixtures were retrofitted, reducing each fixtures power consumption from ~100W (2*40W bulbs + 20W ballast) to 36W for a savings of 64W per fixture * 35 = 2,240 watts.
• Replace every CFL and incandescent bulb with LED bulbs Replace CFL and incandescent bulbs with LEDs #5
  • (37) bulbs were replaced saving avg. 35W * 37 = 1,295 watts savings.
• Replace not-working light fixture above family dorm (Dave)
• Get the yard lamp nearest the zoo working (Dave)
• Install an outside light on the Pump House Install an outside light on the Pump House #6

results