RETROFIT & REDESIGN

KEITH DAVIS, LC, IESNA

Thursday June 22 2017

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AGENDA

• LED Discussion

• Process

• Offices

• Warehouse / Manufacturing

• Outdoor

• Controls

• Conclusion

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WHAT TO KNOW ABOUT LED

• As Led Lighting Moves Forward At Warp Speed We Must Consider Some Very Important Aspects Of This Revolution In Order To Ensure We Can Make Educated Decisions When Spending Money To Convert!

• There Are More And More Products Being Introduced Into Our Market That We Know Nothing About. We Do Not Know Their Quality Control Procedures, Their Testing Much Less Their Components. It Is One Thing To Power Up A Product And Admire How Bright It Looks But How Confident Are We About Its Stated specifications?

• Discussion Of Late Within The Professional Lighting Community Has Been About Products Actually Standing Up To Their Published Specifications Such As L70, Lm80 & Tm21, Lumen Output Etc.

• Not All Products Are Created Equal!

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WHAT DO THE STATED HOURS MEAN TO YOU

• LED FIXTURES 50,000 HOURS AND MORE

• WARRANTY TYPICALLY 5 YEARS

• TYPICAL OFFICE BUILDING

2600 HRS YEAR: 50,000 / 2600 = 19 YEARS @ L70 = 13.5 YEARS USEFUL LIFE

• TYPICAL WAREHOUSE / PLANT

3744 HRS YEAR: 50,000 / 3744= 13.35 YEARS @ L70 = 9.3 YEARS USEFUL LIFE

• OUTDOOR

• 4368 HRS YEAR: 50,000 / 4368 = 11.5 YEARS @ TM21 = 11 YEARS USEFUL LIFE

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LIGHT OUTPUT & EFFICIENCY THE IMPORTANCE OF “DELIVERED LIGHT”

• Lumen output: The lumen is a standard unit that measures the total perceived power of a light source “brightness”

• For a number of reasons Lumen output is not the best measurement of an LED fixtures capabilities.

• Instead of Lumen output the best and most relevant measurement for evaluating LED lighting fixtures and for making accurate comparisons with conventional lighting fixtures is delivered light.

• Illuminance is the term we use for measurements of delivered light or intensity of light on a work surface, measured in fc or lx.

EFFICIENCY

• A traditional fixtures total lumen output does not account for wasted light. A typical luminaire could state a fixture efficiency of 77%, meaning that 23% of the lumen package is lost in the fixture.

2 LAMP T8 28W FIXTURE

Mean Lamp Lumens = 2450 X 2 = 4,900L – 23% = 3,773 usable Lumens

• LED replacement could be 3200 lumens due to the fact that an integral LED fixture efficiency would be 100%

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WHY LED FOR RETROFIT / REDESIGN

• Energy Efficient (25% - 80% Energy Savings)

• Longer Useful Life

• Rugged

• No Warm Up

• Cold Friendly

• Directional

• Color Rendering

• Environmentally Friendly

• Controllable – Dimming - Color

• Lower Cost Of Ownership

• Increased Quality Of Light (Improved Productivity, Performance And Health)

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CONSIDERATIONS: RELAMP, RETROFIT, NEW LUMINAIRE

New Construction

Renovation

- Condition Of Existing Equipment?

- Existing Technology?

Owned Or Leased Space?

What Are The Design Goals?

- Maintain Or Improve Light Levels

- Reduce Light Levels

- Incorporate Lighting Controls

- Aesthetic Requirements

What Is The Desired Payback

Not All Products Are Created Equally

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SITE AUDIT

Audit Of Existing Lighting To

• Determine Quantities

• Technology

• Hours Of Operation

• Voltage

• Existing Light Levels

• Fixture Spacing

• Lamping

• Other Relevant Information.

This initial stage Is Where The Condition Of Existing Equipment Is Determined And The Design Goals would Be Discussed.

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ENERGY ANALYSIS

Energy Analysis Created

• To Determine Existing Power Consumption vs Proposed energy savings

• Recommendations Made Based On Design Goals And Required Payback

• Appropriate Products Selected To Achieve Design Goals

• Cost of project determined

• Incentive amount calculated based on retrofit approach

• ROI determined based on recommended approach

• “Good Information In Good Information Out”!

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RECOMMENDATIONS

Based On Current IES Recommended Practice, Recommendations should Be Made That Will:

• Ensure Adequate Light Levels will be Achieved

• Quality Of Light Improved

• Aesthetics Improved (If One Of Design Goals)

• Energy Reduction Achieved

• Maintenance Reduced

• Maximize Available Incentives

• Achieve Shortest ROI While Meeting All Other Requirements

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OFFICE SPACES

Typical Office Spaces Can Consist Of The Following:

• Pot Lighting

• Recessed Fixtures ( 2x4 , 2x2 Or 1x4)

• Surface Wraps

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OFFICE SPACES Retrofit Options

Depending On The Information Gathered During The Audit, There Are Several Retrofit Options Available For Offices.

Pot Lighting Can Either Be Re-lamped With Led Or Retrofit With Kits. Which Option Is

Chosen Can Be Decided By Aesthetics Or Budget!

If The Pots Are Old And The Flanges Faded, new Retrofit Kits May Be Desirable.

Either Choice Will Save Energy And Reduces Lamp Changes

For Many Years And Both Are Incented.

Recessed Fluorescent Fixtures Can Either Be Retrofit With New Energy Efficient Ballasts And Led Lamps Or Replaced With Dedicated Led Fixtures.

De-lamping Is Also An Option. If Improved Aesthetics Are Desired An Led Architectural Fixture Can Be Installed.

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WAREHOUSING & MANUFACTURING • Typical Outdated Lighting In These Spaces Would Be HID (Highbays) And 8’

T12 Industrials

• The Approach To These Spaces Is Usually Straightforward As Many Buildings Were Designed With HID Highbays And One For One Replacement With LED Highbays Will Provide The Required Light Levels While Saving Energy And Maintenance Over The Long Term.

• Many locations have changed out the HID to T5 or T8 highbays and are wanting to upgrade to LED , some by

• Relamping and some by dedicated fixture replacement. Caution should be used when relamping to ensure ballast compatibility the LED lamps being offered.

Factors To Consider When Relighting This Type Of Space

1. Fixture Spacing

2. Mounting Height

3. Reflectance

4. Type Of Warehouse (Food Falls Under CFIA Standards For Lighting)

5. Is A Redesign Practical To Reduce Fixtures

6. Are There Special Lighting Requirements

7. Activity level

8. Is it practical to incorporate Occupancy Sensors

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TYPICAL EXISTING

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WAREHOUSING & MANUFACTURING

EXISTING : 100 – 400W METAL HALIDE HIGHBAY 347V @ 25’

Provide Typical Design To Ensure Light Levels 25-30fc Ave For Warehouse 12hrs Per Day

LED Highbays 24,000 Lumen With Occupancy Sensor (50% On)

Energy Savings = $ 23,357.88 Year

Cost Installed= $ 49, 757.80

Utility Rebate = $ 10,500.00

ROI With Rebate = 18.4 Months

Note: Manufacturing May Have Other Specific Requirements Such As Task Lighting.

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EXTERIOR

• Replacement Of Outdoor Lighting With LED Has Advantages That Indoor Does Not!

• HEAT: Since Outdoor Fixtures Are Not Used During Mid-Day They Tend To Run Cool All Of The Time Thus Extending Life.

• COLD: LED Operates Best When Cool Therefore Winter Conditions Are Advantageous To An LED Installation.

• Maintenance: Due To The Extended Life Of Properly Designed Outdoor LED Fixtures, Maintenance Is Drastically Reduced And When Calculating ROIs One Of The Most Important Factors Right Behind Energy Savings. Since We Are Replacing HID Systems With Lamps Life Of 18,000 Hours And The Equipment Necessary To Provide Service Is Expensive, Maintenance Savings Long Term Can Reduce The ROI Even Though The Initial cost will be more.

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EXTERIOR

WATTAGE COMPARISONS OF SEVERAL TYPICAL OUTDOOR FIXTURES

• 400W Shoebox @ 458W LED @ 143W

• 250W Wallpack @ 285W LED @ 81W

• Floods 400W @ 458W LED @ 129w

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CONTROLS IN RETROFITTING • Implementing Controls Wherever Possible Can Have A Very Beneficial

Affect On Both Energy Savings And Maintenance Of The Lighting System.

• Switch Sensors In Offices, Boardrooms And Washrooms Can Remove The Human Element To Ensure Lights Are Off When No One Is In The Space. Photo sensors In An Office Can Dim Led Fixtures To Pre-set Levels.

• In Warehousing And Plants, Fixture Mounted Sensors Can Ensure Energy Savings In Spaces Not Often Occupied.

• Parking Garages: Either Fixture Mount Or Zoning Areas Can Reduce Energy.

• When The Lights Are Off They Are Increasing In Lifespan!

• Outdoor: Area Lighting With Led Can Now Be Set Up To Dim To Half When Unoccupied And Come Up To Full Output When The Area Is Entered. Photo Controls On Each Fixture Can Insure They Shut Off In Daylight Hours.

• With LED Retrofitting Dimming Drivers Are Becoming Standard Making Control Much Easier Than With Past Technologies. 18

CONCLUSION

• I Urge You To Learn More About What Makes LEDs So Compelling And Be A Well Informed Customer.

• When Considering A Lighting Retrofit And / Or Redesign Find A Qualified Lighting Professional With Access To A Variety Of Products! Niche Vendors Often Limit Your Options Which Often Times Can Lead To Trying To Fit The Wrong Product In Because Of Lack Of Breadth In The Product Line.

• Ask A Lot Of Questions And Make Sure You Are Dealing With A Reliable Vendor And A Quality Product.

• The Time Is Now To Seriously Consider LEDs For Your Retrofit Project.

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THANK YOU

QUESTIONS?

KEITH DAVIS, LC, IESNA

LIGHTING SPECIALIST

CELL # 647-221-6892

Kdavis@Robertson-Electric.com

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