Street lighting & traffic infrastructure ENERGY EFFICIENCY IN STREETLIGHTING & TRANSPORT INFRASTRUCTURE Picture courtesy of

Street lighting & traffic infrastructure CONTENTS ENERGY EFFICIENCY Street lighting Traffic signals Christmas lighting General outdoor lighting Parking meters PROJECT DEVELOPMENT

Street lighting & traffic infrastructure LIGHT POLLUTION Los Angeles picture courtesy Optimon

Street lighting & traffic infrastructure LIGHT POLLUTION Not really dark during the night insects attracted by typical illuminants

Street lighting & traffic infrastructure BASICS Beam [lm] Luminositiy [lx = lm/m²] Luminous intensitiy [cd] Brightness [cd/m²]

Street lighting & traffic infrastructure Lux Lux Lux Lux 300 Lux

Street lighting & traffic infrastructure STREETLIGHTING Measures Operating hours Power Light source Fixture Control system Erasmus-bridge, Rotterdam,picture courtesy FGL,

Street lighting & traffic infrastructure Total cost Total cost of a typical installation, 25 years Investment 15% after installation 85% maintenance energy investment

Street lighting & traffic infrastructure Light sources Light bulb Flourescent tube Sodium high pressure Sodium low pressure Mercury high pressure Metal halide picture courtesy Optimon

Street lighting & traffic infrastructure Luminaire, fixture Material of body reflector technology Sealing technology lamp simple to change pictures courtesy Optimon

Street lighting & traffic infrastructure digital control system Individual lamp control Online failure dedection of all components 3 main elements Lamp module CPU in switchboard PC-software Data transfer via GSM picture courtesy

Street lighting & traffic infrastructure Example- Graz electricity costs 1,1 Mio Euro 4200 operating hours reduction of 10 minutes a day -> -1,5% energy costs replacement of 720 luminaires -> kWh per year or 58% picture courtesy

Street lighting & traffic infrastructure TRAFFIC SIGNALS incandescent lamp 75W mass replacement 2x/year LED 10W replacement every two years reduction of electricity costs -50% reduction of maintenance costs - 30% Picture courtesy

Street lighting & traffic infrastructure Example- Stockholm 530 signal control points investment 6 Mio Euro electricity savings -> Euro/ year maintenance savings -> Euro/ year picture courtesy

Street lighting & traffic infrastructure GENERAL OUTDOOR LIGHTING Promenades Buildings Sights Bicycle paths Sports fields Picture courtesy FGL

Street lighting & traffic infrastructure Example- Solar lighting no grid interconnection necessary ideally suited for solitary applications always enough daylight to charge batteries Total cost Euro Immediate saving Euro (distance to grid 150m) Picture courtesy

Street lighting & traffic infrastructure CHRISTMAS LIGHTING LED lights offer significant energy savings investment costs are high life cycle costs to be calculated individually affects the expected traditional appearence -> a matter of taste Picture courtesy

Street lighting & traffic infrastructure Example- Graz maintenance Euro/ year energy consumption kWh 400 operating hours reducing 2 hours/ day -> Euro public christmas tree with LEDs -> -80% or kWh Picture courtesy

Street lighting & traffic infrastructure PARKING METERS Solar powered meters no grid interconnection necessary panels can be in total shadow operates with a 12 V battery typical consumption (100 tickets a day) -> 2 kWh/ year Picture courtesy

Street lighting & traffic infrastructure Example- Erlangen 70 solar powered parking meters connected to center via GSM savings result from eliminating the costs for grid interconnection Picture courtesy

Street lighting & traffic infrastructure PROJECT DEVELOPMENT Barriers Specific features Implementation Financing

Street lighting & traffic infrastructure Barriers Complex matter Little information Vast range of products Single measures without integral concept Many regulation, legal requirements Restricted funding possibilities

Street lighting & traffic infrastructure Implementation check of energy bills and maintenance costs survey of existing equipment Financial model Presentation of analysis to municipality Development of an integral long term concept Project planning and tendering Monitoring of savings Documentation

Street lighting & traffic infrastructure Financing dependent on monetary situation of the municipality different possibilities Cash settlement Leasing Contracting main argument is indebtedness of municipalities/ Maastricht-criteria

Street lighting & traffic infrastructure Leasing No initial investment Quick cash by means of „sale and lease back“ No contribution to Maastricht- limit Agreements are expensive Suited for bigger investments No outsourcing of maintenance, risk,… No guaranteed savings

Street lighting & traffic infrastructure Third party financing No or little investment necessary Measures and installations are paid for by savings No contribution to Maastricht- limit Guaranteed savings Outsourcing of design, implementation, maintenance, risk suitable for projects with highly energy efficient measures

Street lighting & traffic infrastructure Thank you for your attention! Picture courtesy