Puteaux City (France) Council Street Light Trials Stage 1



Puteaux City Council Street Light Trials Stage 1


GGE Puteaux Trail Documment
I. Summary
This report provides preliminary information of the trials underway at the French city council of Puteaux – is one of the richest & most innovated city councils in France. It is in the west of Paris next to the commercial centre called La Defense. Customised retrofit kits were created to fit in to existing streetlight fixtures shown below.



Figure1.Existing street light


The existing street lights are Osram/Philipss 250W HPS installed into cast traditional looking street light fixtures made by a French company called“LA Fonderie de Paris”.Green Globe Europe (“GGE”) was given the opportunity to install 2 induction lights in a test street. In the same street is an existing sodium HPS & a LED unit provided by Thorn.


The trial is an on-going process instigated by the city council to test all technologies before deciding on which lights to use in the next relamping cycle programmed to start in 2010. The relamping cycle is every 2 years to replace the HPS units. The contractor that runs & maintains the street lights is called ETDE and will be the ones responsible for buying & installing the street lights once the city council has chosen thee technology and supplier.
The project will then go out to tender. GGE is working closely with the city council & ETDE to maximise our chances of winning the bid. It is estimated that there are about 4700 lights to replace. We will need to makea retrofit kit that fits inperfectly in to existing street light fittings.
It must be noted that even thoough the lights are the same design,there seem to be at least 2 different suppliers with slightly different dimensions in the “top hat” part ofthe fixture.
The client has expressed interest in having intelligent lights that will change intensity depending on movement and/or traffic.
They also want to reduce energy consumption by a minimum of 30%.


GGE believes that the initial results prove beyond doubt the quality of the induction lights & their energy
savings with respect to existing sodium HPS lights. The pilot installation now needs to be reviewed by the
city council decision makers & the ETDE management. Initial lux and power readings show that


  1. The power consumption was reduced from 350Wto 153W – 56% less

  2. The lux reading directly beneath the street light is 62lux – 29% less (HPSis
    88Lux, LED is 17lux)

  3. The lux readinng at mid-street is 30lux –– 16% less(HPS is 36lux, LED is 9lux)

  4. The lux reading mid-way between street lights is 118lux – 14% less (HPS is
    21lux, LED is 33lux)

  5. The quality of the light is far superior,i.e. CRI of 90+

  6. Over 4kg of copper & iron can be recovered from each light fitting as they
    use old passive feromagnnetic ballasts


There were some initial installation issues because the street light in the test street is slightly different to the model supplied. This will be fixed by the next generation of smaller, more efficient ballasts. These ballast will also come pre-integrated with LON Works too allow centrral managemment. Also the city council has expressed interest in local intelligence in the street lights. Therefore the GGE/AMKO road plan to integrate motion detection & daylight sensors is correct. The client is extremely pleased with the idea that the lights are almost instant on & can be controlled so easily. Note that if all 4700 lights are replaced, over 19 tonnes of valuable metal can be recovered. ......(download)

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