20/08/2013 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! 1
20/08/2013 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 2
20/08/2013 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. 3
20/08/2013 TYPICAL LAMP SYSTEM EFFICACY 160 140 L 120 U M E N 100 S 80 P E R 60 W A T 40 T 20 0 INCANDESCENT HALOGEN MERCURY COMPACT FL LINEAR FL METAL HALIDE LED SODIUM Latest technologies – New build and upgrades New build is easier! BCA Section J6 provides constraints on Watts / M 2 (Offices 9W / M 2 ) 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. 4
20/08/2013 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? 5
20/08/2013 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 6
20/08/2013 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 7
20/08/2013 Good Lighting Technique Good Lighting Technique 8
20/08/2013 Good Lighting Technique Good Lighting Technique 9
20/08/2013 Bad Lighting Technique Bad Lighting Technique 10
20/08/2013 Bad Lighting Technique Bad Lighting Technique 11
20/08/2013 Bad Lighting Technique Bad Lighting Technique 12
20/08/2013 Applications – Fluorescent office lighting Latest technologies – T5 vs T8 T5 - 16MM T8 -26MM diameter diameter •Up to 100 Lm / •Up to 100 Lm / Watt on Watt on Electronic gear electronic gear •Low mercury •Now low •New kid in town mercury (10 years ago) •Old tech (read •Smaller unfashionable) diameter = •Large diameter smaller fittings Good for glare and also glare but larger risk fittings. •High operating •Low operating temperature temperature 13
20/08/2013 Solutions – Fluorescent office lighting This usually will work, This usually will work, but but may still require definitely requires some some design design confirmation to confirmation to ensure ensure compliance. compliance. Latest technologies – T5 converter kits 14
20/08/2013 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. 15
20/08/2013 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. 16
20/08/2013 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 SINGLE T8 NEW LED NEW 2X28W T5 1X28W T5 T8 - T5 CONV LED TUBE ELE KW2 LUMINAIRE LUMINAIRE ELECTRICITY 14,040 14,040 7800 15,600 7800 11,180 14,300 SAVINGS KWH P.A ENERGY COST $2,808 $2,808 $1,560 $3,120 $1,560 $2,236 $2,860 SAVINGS P.A. MAINTENANCE $484 $484 $162 $433 $162 $704 704 SAVINGS P.A. TOTAL COST $3,292 $3,292 $1,722 $3,553 $1,722 $2,940 $3,564 SAVINGS P.A. CAPITAL COST $15,000 $12,000 $8,500 $13,000 $8,000 $16,000 $35,000 PAYBACK PERIOD 4.56 3.65 4.93 3.66 4.64 5.44 9.82 YEARS GHG SAVINGS 14.8 14.8 8.26 16.5 8.26 11.8 15.1 TONNES PER ANNUM ESC CLAIMABLE 10 148 148 82 165 82 118 151 YEARS 17
20/08/2013 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 18
20/08/2013 Latest technologies – LED I wish I had paid more attention in maths classes at school! 19
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