Lighting Technology Review Commercial properties Presented by - - PDF document

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Lighting Technology Review Commercial properties

Presented by Julien Freed freed1@optusnet.com.au 0412 578 808

August 2013

Understanding energy efficient lighting

• Lighting Basics - tricks and traps
• Latest technologies – new build and upgrades
• Good lighting technique - why it matters
• Bad lighting technique - there’s a lot of it about
• Practical applications - outcomes of the technology review
• Implementation strategies

Why?

Knowledge is power – helping you to understand what technologies are around and how to apply them should give you the ability to develop best practice energy efficiency reduction solutions!

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Lighting Basics Lighting Basics - Tricks and traps

To deliver energy efficient lighting we need to understand:

• what is happening now;
• what we want to happen;
• what will happen after we make the changes

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Lighting Basics - Tricks and traps

Ballasts: Electronic ballasts are more efficient than older conventional ballasts. The primary area where savings are made in fluorescent lighting is ballast replacement.

Lighting Basics - Tricks and traps

Total Cost of Ownership or TCO: TCO deals with the benefits that many upgrades have over operating costs above and beyond electricity savings. Some technologies deliver so much reduction in maintenance costs through long lamp life that the contribution to payback is significant.

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20 40 60 80 100 120 140 160 INCANDESCENT HALOGEN MERCURY COMPACT FL LINEAR FL METAL HALIDE LED SODIUM

L U M E N S P E R W A T T

TYPICAL LAMP SYSTEM EFFICACY

Latest technologies – New build and upgrades

New build is easier! BCA Section J6 provides constraints on Watts / M2 (Offices 9W / M2) You have the opportunity to insist upon an efficient design in the first place and are not hamstrung trying to mould an existing shell into something that it is not.

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Latest technologies – New build and upgrades

New build things to ask for:

TCO projections using OEH TCO tool No Halogen Only use electronic ballasts, transformers and control gear Use only long life lamps at least 10,000 hours Compliance with all current standards Technology that has been used in the same application check references A maintenance schedule A recycling plan A control system that will ensure light is only used when needed Has daylight been used properly to minimise electric light load?

Latest technologies – New build and upgrades

• What condition is the existing system in?
• What is a reasonable simple payback?
• What light levels are present under the existing

system?

• What is required?
• Should we retro fit or should we buy new?
• What light level and effect will be delivered?

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Latest technologies – New build and upgrades

Risk management and standards. You do not need to understand the standards but you need to make sure that whoever is offering a solution for your project does. What do I mean? Following is one standard alone which deals with lighting technique.

Latest technologies – New build and upgrades

AS/NZS1680

• AS/NZS 1680.1 2006 Interior and workplace lighting – General Principles and recommendations.

124 pages

• AS/NZS 1680.0 2009 Interior Lighting Safe Movement. 7 pages
• AS/NZS 1680.2.1 2008 Interior and workplace lighting – Specific Applications – Circulation

Spaces and other General areas 19 pages

• AS/NZS 1680.2.2:2008

Interior and workplace lighting - Specific applications - Office and screen-based tasks 31 pages

• AS/NZS 1680.2.3:2008

Interior and workplace lighting - Specific applications - Educational and training facilities 25 pages

• AS/NZS 1680.2.4:1997 + 1998 amendment

Interior lighting - - Industrial tasks and processes 49 pages

• AS/NZS 1680.2.5:1997

Interior lighting - - Hospital and medical tasks 37 pages

• AS 1680.3-1991

Interior lighting - Measurement, calculation and presentation of photometric data 48 pages

• AS/NZS 1680.4:2001

Interior lighting - Maintenance of electric lighting systems 25 pages

• AS/NZS 1680.5:2012

Interior and workplace lighting - Outdoor workplace lighting 31 pages

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Latest technologies – retro fit and standards

Dont take my word for it!

ACMA and The Lighting Council have set the stage for compliance. Components must meet all standards that they may need to meet, but more importantly the “new” luminaire usually will need to comply as a new entity.

Good Lighting Technique- there is no substitute for

design

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Good Lighting Technique Good Lighting Technique

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Good Lighting Technique Good Lighting Technique

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Bad Lighting Technique Bad Lighting Technique

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Bad Lighting Technique Bad Lighting Technique

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Bad Lighting Technique Bad Lighting Technique

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Applications – Fluorescent office lighting Latest technologies – T5 vs T8

T5 - 16MM diameter

• Up to 100 Lm /

Watt on Electronic gear

• Low mercury
• New kid in town

(10 years ago)

• Smaller

diameter = smaller fittings and also glare risk

• High operating

temperature T8 -26MM diameter

• Up to 100 Lm /

Watt on electronic gear

• Now low

mercury

• Old tech (read

unfashionable)

• Large diameter

Good for glare but larger fittings.

• Low operating

temperature

20/08/2013 14 This usually will work, but may still require some design confirmation to ensure compliance.

Solutions – Fluorescent office lighting

This usually will work, but definitely requires some design confirmation to ensure compliance.

Latest technologies – T5 converter kits

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Solutions – Fluorescent office lighting

No matter what else happens Don’t do this! Do not listen to the sales people this will not work. Why not? Under some circumstances this might work but please consult an independent specialist.

Solutions – Fluorescent office lighting

What are the issues that relate to these products?

Efficiency? Produced light 1100 - 1800 Lumens, around half that of

• fluorescent. In this case = 50 – 75 lumens per watt.

Existing is 74 Lumens per Watt and T5 is at least 86 Lumens/ Watt. Where is the energy saving? It is delivered by reducing the light level not through efficiency

• gains. We do get long lamp life (sometimes) and no mercury.

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Solutions – Fluorescent office lighting

What are the issues that relate to these products?

Safety? New build luminaires require wiring the lampholders with 240 Volt. What happens when someone puts a standard tube in by mistake? There is a situation that can arise with some lamps where the pins at the end of the lamp can become live when removed from one end only. Some of them are very poorly built and we have experienced end caps falling off the tube exposing 240 volt cables and printed circuit boards

Solutions – Fluorescent office lighting

What are the issues that relate to these products?

Quality of light? Most produce directional light and have difficulty delivering the same light distribution when placed in luminaires. Some do not have a smooth opalised appearance and when lit are very dotty and glary. Colour temperatures of some are ridiculously cool and make a space look like a fish tank.

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Solutions – Fluorescent office lighting

What are the issues that relate to these products?

Compliance with standards? The lamp contains electronics that convert the power from the luminaire into a form that will operate the LED’s. When installed the product significantly alters the exiting luminaire and forces it to be meet EMC standards in its new form. The lamp will also alter the luminaire enough to require all other relevant standards for a new luminaire to be met. In particular concerns exist over the live pins issue.

Solutions – fluorescent office lighting

Show me the money! Replacing 100 X twin 36W fluorescent troffers on conventional gear. Based on 2600 hours per annum and $.20 kWh

SINGLE T8 ELE KW2 SINGLE T8 ELE NEW LUMINAIRE 2X28W T5 1X28W T5 T8 - T5 CONV LED TUBE NEW LED LUMINAIRE ELECTRICITY SAVINGS KWH P.A 14,040 14,040 7800 15,600 7800 11,180 14,300 ENERGY COST SAVINGS P.A. $2,808 $2,808 $1,560 $3,120 $1,560 $2,236 $2,860 MAINTENANCE SAVINGS P.A. $484 $484 $162 $433 $162 $704 704 TOTAL COST SAVINGS P.A. $3,292 $3,292 $1,722 $3,553 $1,722 $2,940 $3,564 CAPITAL COST

$15,000 $12,000 $8,500 $13,000 $8,000 $16,000 $35,000

PAYBACK PERIOD YEARS

4.56 3.65 4.93 3.66 4.64 5.44 9.82

GHG SAVINGS TONNES PER ANNUM

14.8 14.8 8.26 16.5 8.26 11.8 15.1

ESC CLAIMABLE 10 YEARS 148 148 82 165 82 118 151

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What if a supplier says otherwise?

So, you have some different recommendations from a supplier - what now?

• Don’t worry if the option offered differs from the conclusions drawn

here

• Options other than those covered may be offered
• Your project is probably not the first to have the technology applied
• Talk to OEH or an independent specialist lighting consultant
• Do the maths yourself, see where the differences are, are they

valid?

• Can the suppliers data be trusted?

LED- Things to know and find out

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Latest technologies – LED

I wish I had paid more attention in maths classes at school!

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LED- Things to know and find out

Golden Rule: For LED to deliver worthwhile light it will require appropriate thermal management like a large heat sink.

Applications – Low Voltage Halogens

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Solutions - Low Voltage Halogens

Full replacement is the ideal solution. Longer life, higher quality and far greater reliability / warranty Lamp replacement is a compromise. Generally the lamps will not be as bright and will suffer lamp life issues. Replace with lower wattage halogen

• r use specialised glare control LED

fittings.

Show me the money! Replacing 100 x 50W halogen on conventional

• transformer. Based on 2600 hours per annum and $.20 kWh

Solutions - Low Voltage Halogens

6000 HOUR QUALITY SPEC IRC IRC LAMP WITH ELECTRONIC TRANSFORMER LED REPLACEMENT LAMP (PROBABLY NO WHERE NEAR AS BRIGHT) BUDGET GOOD QUALITY NEW LED LUMINAIRE HIGH END GOOD QUALITY NEW LED LUMINAIRE FLUORESCENT MR16 LAMP REPLACEMENT (LIGHT A MATCH IT IS BRIGHTER!) NEW FLUORESCENT LUMINAIRE ELECTRICITY SAVINGS KWH P.A

5,200 7020 14,300 12,740 12,740 13,000 13,000

ENERGY COST SAVINGS P.A.

$0.00 $1,040 $1,404 $2,600 $2,548 $2,548 $2,600 $2,600

MAINTENANCE SAVINGS P.A.

$765 $ 611 $611 $853 $1,538 $1,538 $918 $1,362

TOTAL COST SAVINGS P.A.

$765 $1,651 $2,015 $3,453 $4,086 $4,086 $3,518 $3,962

CAPITAL COST

$1,200 $1,200 $3,200 $6,000 $8,000 $12,000 $5,500 $10,000

PAYBACK PERIOD YEARS

1.6 .7 1.59 1.7 1.96 2.94 1.56 2.52

GHG SAVINGS TONNES PER ANNUM

0.00 5.5 7.4 13.7 13.5 13.5 13.7 13.7

ESC CLAIMABLE 10 YEARS

55 74 137 135 135 137 137

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• Control systems have the ability to deliver huge benefits

which can be hard to quantify

• Look for areas where low traffic allows lights to be off for as

much of the time as possible

• Look for areas where dimming can be appropriate
• Control systems are best applied to an energy efficient

system rather than being used entirely as an energy reduction tool

Solutions – Control systems

• An organisation exists that can direct you to

lamp recycling companies. http://fluorocycle.org.au

• The cost of recycling these types of lamps

should be around $1.15 each and lower costs are possible where large quantities are involved. Solutions – Lamp recycling

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Procurement models Typical new build: Lots of hands touch the goods and add margins. What do we mean by this? Implementation –some things to consider Procurement models Typical energy efficiency retro-fit: Less hands and less margins but often little certainty that outcome will be as expected What do we mean by this? Implementation –some things to consider

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Procurement models Recommended energy efficiency retro-fit: This puts control in your hands and empowers you to ensure that you get what you need with minimal costs What do we mean by this? Implementation –some things to consider

• Establish your baseline TCO
• Establish the procurement model that suits you.
• Develop a documentation package that will allow you

to get market offers on upgrade solutions.

• Get the market to prove that they can deliver a

compliant solution and get it professionally verified

• Implement the package and enjoy better, trouble free

lighting that puts money in the bank!

Implementation – the process

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There is a theme running here...

Energy saving and sustainable solutions exist Paybacks are reasonable You can implement solutions based on sound risk management creating the right balance between energy saving and maintaining or improving upon the existing quality of light. The Office of Environment & Heritage team are here to help you deliver those viable solutions. Many hands make light work! (sorry couldn’t help it.)

Lighting Technology Review

• August 2013

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