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product group

street lighting

Presented by

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Overview

Environmental impacts

Legal BackgroundRecommended GPP criteriaGood practise exampleUseful Links

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Street lighting facts

Almost all municipalities

require street lightingLighting for a new outdoor public traffic area (road or pathway)Lighting for an outdoor public traffic area that is being completely refurbishedReplacement luminaires within an outdoor public traffic area, while keeping wiring and lighting controlsRetrofit lighting controls, while keeping luminairesReplacement lamps

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Public Procurement and products with high environmental leverage

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Street lighting components

The most predominantly used lamps in street lighting are

high-intensity discharge lamps (HID) that include: High-pressure sodium lamps Metal halide lamps with quartz arc tube Metal halide lamps with ceramic arc tube Low-pressure sodium lamps High-pressure mercury lamps

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Environmental impacts by street

lighting

Energy consumption, in all phases, but especially the use phase of street lighting and traffic signals High energy consumption from the use of incandescent bulbs in traffic signals Use of natural resources and materials and generation of waste (hazardous and non-hazardous)Potential pollution of air, land and water due to the use of hazardous materials e.g. mercuryLight pollution from street lighting

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GPP criteria to approch environmental impacts

Purchase lamps with high lamp efficacy

Purchase efficient ballasts Promote the purchase of lighting systems with a low energy consumption for the light provided Promote the use of LEDs in traffic signals Encourage the use of dimmable ballasts where circumstances allow Promote lamps with a lower mercury content Promote the use of luminaires that limit light emitted above the horizon

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Applicable EU Directives

Directive 2009/125/EC establishing a

framework for the setting of eco-design requirements for energy-related products Regulation (EC) No 245/2009 with regard to eco- design requirements for fluorescent lamps without integrated ballast, for high intensity discharge lamps, and for ballasts and luminaires able to operate such lamps, repealing Directive 2000/55/EC and Regulation 347/2010 Directive 2006/32/EC on energy end-use efficiency and energy services

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Cost considerations

Street lighting provides maximum energy savings at reasonable capital costs, when the contracting authority considers GPP specification and the best available fittings for new lighting systems and refurbishment of existing systems

Where fittings allow, more efficient lamps should be used depending on the location and specific light use requirementsNeed to meter electricity consumption for street lighting as cost of electricity is calculated based on the number of units and their nominal wattage, multiplied by the number of hours of use, i.e. where street lighting is upgraded to improve energy efficiency, the contracting authority should seek to renegotiate the electricity charges

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Cost considerations

Good street lighting design may be able to reduce costs by the resulting increase in distance between the streetlights and lower lamp power.

Using lamps that have longer lifetimes and better lumen maintenance will result in longer maintenance times, there fore reducing costs. This will also reduce the indirect impacts incurred through replacement and maintenance, such as vehicular emissions and the associated impacts from manufacturing and distributing more components, mainly lamps.

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Recommendations: Subject Matter

Include

sustainability aspects within the subject matter (‚GPP Training Toolkit‘)Purchase of high efficiency lighting equipment (lamps, ballasts, luminaires) (1)Resource and energy efficient design of new lighting systems or renovation of the existing lighting system (2)Resource and energy efficient installation of new lighting systems or renovation of the existing lighting system (3)

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Recommendations: Technicial Specifications (1)

High Pressure Sodium lamps with a

colour

rendering index Ra < 60 shall have at least specified luminous efficacy

Metal Halide lamps with a

colour

rendering index Ra < 80 shall have at least the specified luminous efficacy

Metal Halide lamps with a

colour

rendering index Ra ≥ 80 shall have at least the following luminous efficacy

Ballasts for high intensity discharge lamps shall have minimum specified efficiency

Ballasts for compact fluorescent lamps shall all be electronic

High pressure sodium lamps and metal halide lamps shall have a specified lamp lumen maintenance and lamp survival factors

Luminaires

shall have an optical system that has a specified ingress protection rating

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Recommendations: Technicial Specifications (2)

Where a new lighting system is being provided for a traffic route (classes ME or MEW in EN 13201-1), the maximum energy efficiency indicator, must not exceed specified values

Where a new lighting system is being provided for a conflict area (e.g. road intersection, shopping street, residential road, pathway or cycle track) (classes CE or S in EN 13201-1), the maximum energy efficiency indicator, must not exceed specified values

Luminaires

shall be designed and installed to ensure that ULR, the proportion of light emitted by the

luminaire

going above the horizon is limited as specified, without detriment to the overall energy efficiency of the system for which it is designed

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Recommendations: Technicial Specifications (2)

Where lighting is to be installed in an individual space or part of the building, the maximum lighting power consumed in the space, divided by its total floor area and by its

illuminance

in units of 100

lux

, must not exceed the given values

Design and installation of lighting controls for

i

nfrequently

occupied

spaces

,

spaces which are unoccupied at night or at weekends, spaces with side windows to be controlled in rows parallel to the windows, in offices, conference rooms, school classrooms and laboratories, in

daylit

circulation areas and reception areas to be controlled by automatic daylight linked control

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Recommendations: Technicial Specifications (3)

The

tenderer

shall provide the following for new or renovated lighting systems

Disassembly instructions for

luminaires

Instructions on how to replace lamps, and which lamps can be used in the

luminaires

without decreasing the stated energy efficiency

Instructions on how to operate and maintain lighting controls

For daylight linked controls, instructions on how to recalibrate and adjust them.

For time switches, instructions on how to adjust the switch off times, and advice on how best to do this to meet visual needs without excessive increase in energy consumption

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Recommendations: Award Criteria (1)

Award will go to “Most economically advantageous tender (MEAT)”

Additional points shall be awarded for lamps that meet specified lamp lumen maintenance factors (LLMF) and lamp survival factors (LSF)HID lamps that have a mercury content not greater than that given in the table below, where W is the lamp power in Wattsballasts for high intensity discharge lamps that have a specified minimum efficiencyfor those lamps that meet the relevant comprehensive criterion for luminous efficacy, where metal halide lamps are identified as the most suitable lamp type

Source:

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Stuart Miles

at

FreeDigitalPhotos.net

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Recommendations: Award Criteria (2)

Award will go to “Most economically advantageous tender (MEAT)”

Where a new lighting system is being provided, credit will be awarded if energy efficiency indicators are less than 90% of those given in the relevant tableWhere dimming is required and/or beneficial, additional points will be given in proportion to the percentage of dimming in relation to the lamp power. Additional points shall be awarded for luminaires in proportion to the reduction of light emitted above the horizon beyond the standards specified without detriment to the overall energy efficiency of the system for which it is designed

Source:

© Image courtesy of

Stuart Miles

at

FreeDigitalPhotos.net

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Ecolabels

and existing standards

No specific Ecolabels at present Several countries have labels and/or minimum energy performance standards for various components. Ecolabels that do exist are applicable to fluorescent tubes and compact fluorescent lamps, and not HID lampsEnergy Efficiency Index for Ballasts – CELMA, EuropeEcolabels applicable to types of lighting outside the scope of this GPP product group. In particular these cover general lighting products for use in domestic and small commercial situations and focus mainly on compact fluorescent lamps

Budapest, Hungary

Best practise example

Introduction

Green

Programme of Budapest was created in 2002Own GPP criteria developed in 2006Procurement process was launched to install lighting that would fit the aesthetics of the bridge, allow for the safe transit of trams, cars and pedestrians and withstand humidity and heavy vibrations. The sustainability and cost of the lighting solution were key concerns for the cityCall for supply and installation of ornamental and street lighting on Liberty Bridge

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Budapest, Hungary

Best practise example

Technical

Specifications

The required levels of lighting for carriageways and footpaths were specified, with reference to standard EN 13201 or equivalent. The quantities of luminaries, lamps and supports were set out in a schedule, along with the specific design and durability requirements identified. Lumen efficacy (based on the ratio of power input to visible light output)Ballast efficiency (based on the ratio of ballast output to lamp-ballast circuit input)

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Budapest, Hungary

Best practise examples

Results

More than 800 light fittings installed, incl. 584 LED lights equaling installed power of 40.7 kilowatts (LEDs account for 13.1 kilowatts)Project carried out in 2009 at a cost of €1.66 millionEstimated life expectancy of the ornamental lighting installed is 15 years and 30 years for the street lighting; this longer lifespan means lower replacement rates, bringing considerable direct and indirect economic benefits and reduced wasteNormally replacing lamps is difficult and costly due to mounting on the bridge and the disruption to traffic: avoiding of these costsSavings on electricity compared with the original concept estimated at €40,000 per annum, with total savings of €100.000 per annum

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Further resources

GPP

criteria

(street lighting): http://ec.europa.eu/environment/gpp/pdf/criteria/street_lighting.pdfENIGMA project: http://www.enigma-project.eu/en/ Topten criteria www.topten.eu