1. Street lighting & traffic infrastructure www.transportlearning.net ENERGY EFFICIENCY IN STREETLIGHTING & TRANSPORT INFRASTRUCTURE Picture courtesy of www.wurli.com

2. Street lighting & traffic infrastructure www.transportlearning.net CONTENTS ENERGY EFFICIENCY Street lighting Traffic signals Christmas lighting General outdoor lighting Parking meters PROJECT DEVELOPMENT

3. Street lighting & traffic infrastructure www.transportlearning.net LIGHT POLLUTION Los Angeles 1908 1988 2002 picture courtesy Optimon

4. Street lighting & traffic infrastructure www.transportlearning.net LIGHT POLLUTION Not really dark during the night insects attracted by typical illuminants www.darksky.org

5. Street lighting & traffic infrastructure www.transportlearning.net BASICS Beam [lm] Luminositiy [lx = lm/m²] Luminous intensitiy [cd] Brightness [cd/m²]

6. Street lighting & traffic infrastructure www.transportlearning.net 6.000 Lux 2.500 Lux 10.000 Lux 100.000 Lux 300 Lux

7. Street lighting & traffic infrastructure www.transportlearning.net STREETLIGHTING Measures Operating hours Power Light source Fixture Control system Erasmus-bridge, Rotterdam,picture courtesy FGL, www.licht.de

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

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

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

11. Street lighting & traffic infrastructure www.transportlearning.net 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 www.tekkto.com

12. Street lighting & traffic infrastructure www.transportlearning.net 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 -> - 530.000 kWh per year or 58% picture courtesy www.energie-graz.at

13. Street lighting & traffic infrastructure www.transportlearning.net 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 www.royersignal.de

14. Street lighting & traffic infrastructure www.transportlearning.net Example- Stockholm 530 signal control points investment 6 Mio Euro electricity savings -> 471.000 Euro/ year maintenance savings -> 243.000 Euro/ year picture courtesy www.fet.uni-hannover.de

15. Street lighting & traffic infrastructure www.transportlearning.net GENERAL OUTDOOR LIGHTING Promenades Buildings Sights Bicycle paths Sports fields Picture courtesy FGL www.licht.de

16. Street lighting & traffic infrastructure www.transportlearning.net Example- Solar lighting no grid interconnection necessary ideally suited for solitary applications always enough daylight to charge batteries Total cost 5.600 Euro Immediate saving 3.900 Euro (distance to grid 150m) Picture courtesy www.ecolights.at

17. Street lighting & traffic infrastructure www.transportlearning.net 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 www.energie-graz.at

18. Street lighting & traffic infrastructure www.transportlearning.net Example- Graz maintenance 130.000 Euro/ year energy consumption 93.000 kWh 400 operating hours reducing 2 hours/ day -> -3.000 Euro public christmas tree with LEDs -> -80% or 2.200 kWh Picture courtesy www.energie-graz.at

19. Street lighting & traffic infrastructure www.transportlearning.net 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 www.gesig.at

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

21. Street lighting & traffic infrastructure www.transportlearning.net PROJECT DEVELOPMENT Barriers Specific features Implementation Financing

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

23. Street lighting & traffic infrastructure www.transportlearning.net 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

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

25. Street lighting & traffic infrastructure www.transportlearning.net 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

26. Street lighting & traffic infrastructure www.transportlearning.net 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

27. Street lighting & traffic infrastructure www.transportlearning.net Thank you for your attention! Picture courtesy www.energie-graz.at