Lou presentation led lighting - opfma conference 2013 final

LED Lighting –

An Ongoing Evolution

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Introductions

Greg Smith, President, Lighting Optimizers, USA, CLEP, CEM, LEED AP•

Energy Savings Projects and Lighting Auditing Services

Over $5,000,000 of Successful Energy Saving Lighting Projects since 2011• Vendor-neutral

22 Full-time Associates• Mechanical and Energy Engineers, Lighting Engineers• In-house design and installation services

Innovative, but practical• Cutting edge, not bleeding edge

• “The bitterness of poor quality remains long after the sweetness of low price is forgotten” – Benjamin Franklin

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The Power of Lighting

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“Lighting represents roughly 40% of the energy consumption in the commercial building sector”

- US Dept. of Energy, 2008

• Fastest payback• Low initial investment• Helps drive other energy improvements• Improved facility appearance & comfort• Typical 2-4 year interior fluorescent payback • Typical 6-8 year exterior LED payback

Identifying Opportunities

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5 or more years since last lighting upgrade– Presence of T12 lamps and ballasts– Presence of T8 32W lamps– Presence of non-fluorescent High Bays

Absence of Occupancy Sensors Incandescent EXIT Signs HID Exterior Lighting

Light Emitting Diodes (LEDs)

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History of the Technology

• First concept was discovered/created in 1907 by H.J. Round – electroluminescence

• Nick Holonyak of GE (1961)– First visible spectrum LED (red)

• First used to replace indicator lamps– TVs, radios, calculators, high tech machines

• High brightness LED (blue & white) in 1994

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Recent Trends

Quality Improvements Market Leaders – Cree, Lithonia, Sylvania Trusted Manufacturers offering full LED product

lines

Quantity Improvements Higher Lumen output Improved Fixture Efficacy (i.e. lumens per watt)

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Emerging Trends

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Advantages of LED

Advantages High efficacy (lumens/Watt) No mercury Can vary color easily Cycling Dimming capabilities LIFE EXPECTANCY (50,000 + hours) Instant Start up time No ultraviolet light Energy savings

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Potential Disadvantages

Directional

Potential slight color variationBeing addressed by major manufacturers

throughout quality control

Current interior cost, but lowering everyday

Can have compatibility issues with older dimmer systems

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Interior Case Study – Dayton Art Institute

Strategy One for one lamp replacement w/ comparable LED product Light output from LED lamps only an issue at extremely high

outputs (> 250W incandescent) Replacement of incandescent lamp system with high

efficiency LED lamps Projected Electrical Savings = $33,000 Projected Annual O&M Savings = $1,800 Projected Utility Rebate = $11,240 Simple Payback 5.1 years

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Case Study – Tecumseh Local Schools

2012 Retrofit of Exterior Lighting Systems - Wall-packs- Flood lighting- Parking Lots/Area Lighting

65% Energy Use Reduction 7.2 Year Simple Payback

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Thank You