Lighting Upgrades Designs/Costs/Savings. What s Right for You?

Transcription

1 Lighting Upgrades Designs/Costs/Savings What s Right for You?

2 Rodney Heller LC, CLEP Bio 14 years of hands on industry experience LC Lighting Certified NCQLP (lighting industry) CLEP Certified Lighting Efficiency Prof. (AEE) IES Chair, Lighting Energy Management committee Midwest Lighting Institute Founder Research on light & human performance

3 Presentation Format If you have a question or comment, please speak up! Your participation helps make the session more informative

4 Hallway Design Recommended Practice, 5 fc You can get it with just 2000 lumens/fixture That is 1 lamp -fluorescent or LED With a good LED that is 0.15 watts/sq ft (LPD) This is plenty of light, the full moon is.01 fc Today s cameras have no problem with this light level

5 Office Design Look at average age of occupant 40 years old -30 fc 50+ years old -40 fc Lower ambient light with task lighting Need to get high contrast for monitor Glare? Older we get, more irritating it is

6 Classroom Design Over 50% under age 25, RP is 20 fc Computer screens, Apple TV, & smart boards Need strong contrast for screens All kids must be able to see Must be visually comfortable Be able to dim front separately from rest of room, but be able to adjust entire room

7 Other Spaces Base everything on the task If it is a non computer screen task, you may need more or you may need less light If it is power equipment, you need a lot more light Know the difference between horizontal and vertical illuminance

8 Component Cost Technology Cost LPW Rated Life Fluorescent TLED $3.50/lamp $14/ballast $12/lamp $14/ballast 90 92% 112 L70 Retro kit $ L70 Luminaire $ L70

9 Fluorescents Just not worth your time anymore Half the efficiency of any LED It is not only lumens/watt, but also light emission that makes up the efficiency factor

10 T8 LEDs 50% energy savings moving from T8 fluorescents Direct wire or with ballast We prefer with ballast, primarily for safety Can get down to.35 LPD Once you get this low, there will be no more upgrades based on energy savings!

11 LED Kits Give a whole new look Get down to.3 watts LPD Relatively quick to install Can be dimmable &/or dynamic Typical rated life 70,000 hours Can have platform that is enabled to expand capabilities

12 LED Troffers Same as kits, except, the cost High cost if not in a remodel or new construction If in above, cost difference between it and dumb light is minimal

13 Controls Occupancy or vacancy Installing a sensor often times lengthens payback LPD is getting so low, it does not pay to control a couple dollars of electricity Depends on kwh rate, operating hours, and amount of wattage it controls, need to determine this for your individual district Teachers do not like waving, clap on If tied to HVAC system it makes more sense

14 Controls Daylighting Already built into many fixtures Building Automation Systems Everybody pushing, but there is a lot of junk Expensive & difficult to program After 5 years, 92% do not work properly Apple, Google, Cisco, are entering space, much simpler and more secure

15 Technology Drivers Within 5 years Li-Fi will be here 100x faster than Wi-Fi All sensors will be built into light, it is the perfect place for them; where the power is Occupancy, location, falls Fire, Gas, etc Asset tracking LPD at.3 watts and below

16 Physiological Drivers Student performance Data that says we can improve student performance based on color of photon hitting the pupil SAD, we know we can eliminate it in over 50% of population with the right light We know we can wake the kids up first thing in the morning with the right light

17 What s Right for You? Lighting is changing so fast it is hard for us to keep up and it is all we do! This will be you last change based on saving energy, the LPD is getting so low Next change will be a capital cost and referendum Choose wisely

18 What s Right for You? T8 LEDs Pros Quickest Payback Cheap Cons Safety issues if direct wired Can not dim Can not expand for sensors Can not adjust color Can not transmit data Dumb lights Referendum in near future

19 What s Right for You? LED Kits Pros Dimmable Dynamic lighting is preferable Platform for the future Give a new look About 10% more efficient than tubes Cons Cost more, about 50%, but still within payback scenarios in most cases Do not necessarily need to go fixture for fixture

20 What s Right for You? LED Fixtures Pros Able to redesign space & lower fixture count about 25% Dimmable Dynamic lighting is preferable Platform for the future About 20% more efficient than tubes Cons Cost more, but if in remodel about 5-10% more than dumb light

21 Lighting Upgrade Summary If you are focused on savings at lowest cost, T8 LEDs are the way to go. We recommend a lighting system with a platform for the future, need to be able to expand capabilities at minimum cost We recommend dynamic lighting for student performance & mood if in budget

22 Lighting Upgrade Summary To justify sensors, you need to create a formula for your district based on kwh cost, wattage controlled & occupancy Remember all these sensors & controls will be built into the light in the near future Keep the taxpayer in mind Do you want an inexpensive system today & a huge capital expense in a few years, or Pay a little more now and get a platform for the future today

23 Thank you! Questions/Discussion Rodney Heller LC, CLEP Energy Performance Lighting In conjunction with Midwest Lighting Institute