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Energy Efficiency Projects: lighting toolkit


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A short and sweet guide to making your business more energy efficient by making changes to your lighting. Created by the Camden Climate Change Alliance and aimed at businesses based in the London Borough of Camden, UK. For more information please visit

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Energy Efficiency Projects: lighting toolkit

  1. 1. LightingFrom Start to Finish: EnergyProjects Made Easy
  2. 2. How these guides workOur ‘Energy Projects Made Easy’ e-event is designed to provide you with tools and tipsto help you implement an energy efficiency project. Each of these guides focuses on adifferent type of project, and each is packed with hints, tips, links and case-studyinformation. These presentations are not designed to be detailed step by step toolkits;rather, they aim to provide guidance and inspiration for your future energy efficiencyprojects.Each guide follows a similar format:• an introduction to the topic• the types of improvements you can make• how to calculate the costs and benefits of your project – developing a businesscase for the project• tips and pointers towards suppliers and potential funding opportunitiesEnergy Projects Made Easy, Guide 1: LightingBlue case-study boxes are dotted throughout theseguides. All are from Alliance members who havesuccessfully implemented a variety of energy efficiencyprojects, and we’re delighted to be able to highlightsome of their work for your benefit in these guides.These red boxes contain usefulfacts and figuresThese green boxes link you to akey external resource
  3. 3. IntroductionUp to 40% of a building’s energy use comes from lighting, but up to 75% ofthe UK’s buildings have outdated lighting, which is detrimental to both energyusage and the working environment. Huge energy savings can be found inimplementing a lighting energy efficiency project, as well as more intangiblebenefits such as increased productivity and/or sales from having a morecomfortable working environment.Lighting is one of the simplest energy efficiency projects to implement:• It’s easy to calculate your current usage and costs• Changing light fittings can equal guaranteed savings, making calculatingthe payback period of your measures is straightforward• Upgrading lighting for most organisations does not involve a prohibitivelylarge capital investmentEnergy Projects Made Easy, Guide 1: Lighting
  4. 4. What you can doThere are two main types of lighting energy efficiency project:• Implement lighting controls– motion sensors– daylight sensors– dimming v. switching• Implement lighting retrofits and refurbishmentsEnergy Projects Made Easy, Guide 1: Lighting
  5. 5. Benefits of lighting projects• Lighting accounts for 40% of a building’s energy usage, making it a largepart of your electricity bills• For a relatively small outlay you can make huge savings, often up to 50%or more!Energy Projects Made Easy, Guide 1: LightingThe General Medical Council found benefits ofnew LED lighting beyond just energy savings.These included: less waste, less maintenancerequired, more pleasant working environment,reduced heat and noise, and no toxic chemicalsor UV light is produced.• There are many advantages toa lighting project beyond justsaving money and energy –see the case-study box on thispage
  6. 6. Which type of project is right for you?Energy Projects Made Easy, Guide 1: LightingYour current lighting may makechoosing a project very simple: theBritish Library had aging lightingunits and fittings, which madeinstalling new lighting the obvioussolution. They replaced old 6’flourescent tubes with LED tubesthat use one third of the electricityand last over three times longer• Every organisation’s circumstances are different, sounderstanding which type of project is best for you isvital.• Refurbishments and retrofits differ in that the formertakes a blank canvas approach, while retrofits offer toopportunity to make smaller and quicker savings forsmaller outlays.As the Carbon Trust table to the leftshows, there is a huge variety ofprojects just within the topic oflighting controls. While we don’t havethe space to explore them all indetail, be aware of the many optionsthat are out there!
  7. 7. Lighting controlsRather than simply replacing your existing lighting, it may be worthwhile toinstall motion sensors or daylight sensors onto existing fittings. For smallerbusinesses, these sensors can be combined with a controller that operateslocal lights, rather than making changes to your wiring.Energy Projects Made Easy, Guide 1: LightingMix and match solutions depending oncircumstances: The Building Centreintroduced motion and daylight sensorlighting for their tenanted offices, andtimed lighting for their exhibition space.Daylight sensors can be adjusted for eachindividual light, which means makingadjustments depending on how far a lightis away from a window is easy.Daylight and motionsensors on existinglighting can save upto 25% of electricityuse
  8. 8. Lighting retrofits and refurbishments• Lighting refurbishment does of course depend on what your current light fittingsare: replacing fluorescent tubes like those in the picture below is a common option– the smallest tubes pictured, T5s, are much more efficient than their larger T12cousins. It is also quite straightforward to convert your old fittings to take thesmaller T5 tubing• Installing new LED lighting is another common option for spot-lit areas. They tendto be relatively more expensive than other energy efficient options, but can last upto 10x as long as the incandescent lamps they may be replacing.Energy Projects Made Easy, Guide 1: LightingKnow your OLEDs from your LEDs?Check out Inhabitat’s guide to typesof energy efficient lighting
  9. 9. Calculations• Calculating accurate estimates of costs and use for lighting is fairly simplebecause:– Lights are either on or off– Each light will use a set amount of electricity, detailed on the bulb itself(usually in Watts)• Payback periods for lighting is often very low, as the initial outlay forlighting is fairly smallEnergy Projects Made Easy, Guide 1: LightingLearn just how easy it is to make allthe calculations required with ourpractical video demonstrationThe replacement of 36W fluorescenttubes with 15W LEDs that Phil uses as hisexample in the video demonstration isexactly what the General Medical Councildid – they saved nearly 48,000kWh in oneyear!
  10. 10. Funding and SuppliersFunding• Lighting upgrades are eligible forthe Enhanced Capital Allowancesscheme• The Green Grants Machinewebsite is a great directory ofrelevant grants and fundingopportunities for energyefficiency measures• Carbon Trust and SiemensFinancial are working together toprovide ‘Energy EfficiencyFinancing’ for companies of allsizes and sectorsEnergy Projects Made Easy, Guide 1: LightingOver 4500 businesses havebenefited from the CarbonTrust/Siemens scheme
  11. 11. Funding and SuppliersSuppliers• The Society of Light and Lighting,the Lighting Industry Federationand the Electrical ContractorsAssociation all have accreditedmember directoriesWe have a number of lightingsuppliers listed in our GreenSuppliers List, a comprehensivedirectory of green products,suppliers and servicesEnergy Projects Made Easy, Guide 1: Lighting
  12. 12. First StepsEnergy Projects Made Easy, Guide 1: LightingConduct a walk-around• Conduct a walk-around of your premises• Things to look out for include your type of fittings, wattage and existing lightingcontrolsCalculations• Use our helpful video guide to calculate the cost and energy of your current usage• Calculate the potential savings; remember to include payback period calculationsExaminefundingopportunities• Check out the funding page of this guide to see what funding may be available• Not all lighting retrofits and refurbishments are eligible for financing schemes andtax allowance schemes – check your chosen lighting solution qualifiesCreate abusiness case• Combine all of the above to create a business case for your chosen project• You can also include here the non monetary advantages of implementing a lightingenergy project
  13. 13. Key ResourcesCamden Climate Change Alliance• The Energy Projects Made Easy homepage• Our video guide to calculating your lighting usage• Our Green Suppliers DirectoryCarbon Trust• The Carbon Trust has a variety of lighting guides on its websiteEnergy Projects Made Easy, Guide 1: Lighting
  14. 14. ContactThe Camden Climate Change AllianceWebsite: www.camdencca.orgTelephone: 0207 974 3901Email: Projects Made Easy, Guide 1: LightingThis guide was produced in August 2012 by AdamWebber (, 0207 9743901)