LED street lighting .

[Evans Electric]

B,ham City Council have announced that they will be changing all the street lighting from sodium to LEDs to help with their spending cuts . Power savings of 60% and very little maintenance & lamp changing .

I guess existing street lights are 250w or 400w so these LEDs must be high output , has anyone seen really powerful LEDs .

 

[Andy™]

maybe a post every 2mtr along the road?

 

[bluetobits]

[quote name='Andy

 

[M107]

I'll take a picture later for you, we have just had them put in along our street.

None of that amber discharge light for us anymore, just bright light as a cone every couple hundred yards.

 

[Evans Electric]

They have also said that they will be able to monitor the condition of each lamp from a central point which may mean data wiring going in, at present street lights are connected direct to the E-ON Network (no meters) and a set fee is paid each year.

 

[aidanb19]

Reminds me of this a while back.

It was on Jeremy Vine, basically said what it saved will never be anywhere near what it costs, as they fail to mention they would all need to be changed again in 25 years or so (don't quote me on that bit)

 

[Evans Electric]

Ah ! They have quoted a lamp life of 25 years. Surely they not going to replace the poles too!!

When I was employed we quoted to a local council to replace a section of street lighting . They had to have at least 3 quotes so one was submitted by their own direct works dept, one from MEB ( dno) and ours.

We were never going to win it , hire of special truck and rig for erecting poles plus driver and crew plus employing MEB cable jointing crew as sub contractors , no sparky work at all .

MEB already had all vehicles and crews and jointers and usually did all this type of work in the area.

Strangely the local council won the job even though they had to purchase a new truck and rig .

 

[Andy™]

Reminds me of this a while back.It was on Jeremy Vine, basically said what it saved will never be anywhere near what it costs, as they fail to mention they would all need to be changed again in 25 years or so (don't quote me on that bit)

south tyneside council are replacing every light in the area. mostly replacing 55W SOX with 150w MH, and 90W SOX with 250w MH. and there are more new lights going in than removed. so much for energy saving

 

[Larnacaman]

B,ham City Council have announced that they will be changing all the street lighting from sodium to LEDs to help with their spending cuts . Power savings of 60% and very little maintenance & lamp changing . I guess existing street lights are 250w or 400w so these LEDs must be high output , has anyone seen really powerful LEDs .

As has been pointed out before, LED technology is still very much ongoing... There is no-way your going to achieve the equivalent light output of those existing lamp types with existing LED lamps.

What they do have, in high output LEDs is going to cost an arm and a leg, and the longevity of such lamps is also suspect at this time... :|

Having said that, expect continuous improvements on LED lamps for the next 2 years, this ''IS'' going to be the future in low energy low cost lamps!! They just aren't ready yet, what your buying to-day, is a shadow of what to expect in the future, they are off setting the huge costs of the ongoing R&D to the lighting companies....

 

[M107]

Sorry the pictures are not great but the new led lamp heads contain 64 LED's.

The old street lamps

http://i83.photobucket.com/albums/j293/gazjothomas/DSC00581.jpg

The new LED lamps

http://i83.photobucket.com/albums/j293/gazjothomas/DSC00582.jpg

http://i83.photobucket.com/albums/j293/gazjothomas/DSC00579.jpg

http://i83.photobucket.com/albums/j293/gazjothomas/DSC00580.jpg

Both in the same shot

http://i83.photobucket.com/albums/j293/gazjothomas/DSC00578.jpg

 

[Manator]

Sorry the pictures are not great but the new led lamp heads contain 64 LED's.The old street lamps

http://i83.photobucket.com/albums/j293/gazjothomas/DSC00581.jpg

The new LED lamps

http://i83.photobucket.com/albums/j293/gazjothomas/DSC00582.jpg

http://i83.photobucket.com/albums/j293/gazjothomas/DSC00579.jpg

http://i83.photobucket.com/albums/j293/gazjothomas/DSC00580.jpg

Both in the same shot

http://i83.photobucket.com/albums/j293/gazjothomas/DSC00578.jpg

Most street lamps will be replaced by LED in the future.

The main savings will be made by cheap solar energy used to charge during daylight.

What you are now looking at in the domestic market are the cheap low output versions,the problem with LED is the colour values,it is a more natural light, it is closer to the 865, and will never be a warm light like the 840 until the introduction of filters.

What you have to take into account when realising costings is this;

lets say original costs for replacement are

 

[Apache]

Looks like a lot of dark places for criminals to hide!

 

[M107]

Looks like a lot of dark places for criminals to hide!

Indeed so & it has been commented on by others in the area.

 

[batty]

In my area they are switching a lot of street lamps off especially in the countryside you now have busy roads with no street lighting. Thats the way to save money.

 

[SLIPSHOD & SLAPDASH]

[quote name='Andy

 

[septiclecky]

Whose the manufacturer of these new LED fittings then?

 

[revjames]

why not put street lamps on PIRs.... so when the road is quiet they all go off, when traffic is sensed they come one.....

 

[septiclecky]

why not put street lamps on PIRs.... so when the road is quiet they all go off, when traffic is sensed they come one.....

SON and MH need to cool down before they normally re-ignite once they have been switched off. Not only that by the time the are fully illuminated the vehicles would be well and truly passed.

 

[Sidewinder]

They also have a noticeable time to reach full brightness depending on the exact design IIRC.

 

[Andy™]

get rid of all lights on dual/motorways etc and that'll save a fortune. after all, vehicles do have headlights....