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Re: Energy saving auto dimming street lights

Cross-posted to 3 groups.

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In article <p2j4vm$893$2@dont-email.me>,
   Andrew Gabriel <andrew@cucumber.demon.co.uk> wrote:
> In article <fb3odqFopnuU2@mid.individual.net>,
> 	Huge <Huge@nowhere.much.invalid> writes:
> > On 2018-01-03, JAB <here@toadsfoot.net> wrote:
> >>
> >> Norway - At highway 155 in Nes i Hole, 220 radars have been installed
> >> on light poles. They detect oncoming traffic and adjust the strength
> >> of the light. By doing this, the 9 km/5.5 mi stretch saves a whopping
> >> 2100 kWh per week. The extra investment will break even after just 4.5
> >> years. 
> >>
> >> https://www.youtube.com/watch?v=mi8eE_NEfHM
> > 
> > In the UK they save even more money by simply not lighting the roads.

> There has been a trend to switch off the lights on rural roads/motorways
> outside busy periods.  In some cases, they have been permanently switched
> off. Also, many have been changed to delay switch-on until much lower light
> level than used to be the case.

> In UK, many of the new LED streetlamps which are controlled by mesh
> networks have their light level set remotely, and automatically adjusted
> at different times of night. They can be adjusted for once-off events
> too, when a council is prepared to pay extra to have them on brighter for
> longer if there's a local event resulting lots of people around later.

> I am not aware of occupancy sensing type controls in the UK, although
> they are used in some parts of continental Europe, particularly on
> pedestrian footpaths.

The LED lights at our railway station and a footpath outside seem to sense
the presence of a person; they get brighter when you approach.

-- 
from KT24 in Surrey, England

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Thread

Energy saving auto dimming street lights JAB <here@toadsfoot.net> - 2018-01-02 21:42 -0600
  Re: Energy saving auto dimming street lights Huge <Huge@nowhere.much.invalid> - 2018-01-03 10:08 +0000
    Re: Energy saving auto dimming street lights Bill <Billaboard@gmail.com> - 2018-01-03 12:42 +0000
      Re: Energy saving auto dimming street lights Tim Streater <timstreater@greenbee.net> - 2018-01-03 12:47 +0000
        Re: Energy saving auto dimming street lights Bill <Billaboard@gmail.com> - 2018-01-03 13:10 +0000
      Re: Energy saving auto dimming street lights "Brian Gaff" <briang1@blueyonder.co.uk> - 2018-01-03 15:10 +0000
      Re: Energy saving auto dimming street lights DerbyBorn <Somewhere@Nearhome.com> - 2018-01-03 15:14 +0000
        Re: Energy saving auto dimming street lights "Rod Speed" <rod.speed.aaa@gmail.com> - 2018-01-04 06:25 +1100
        Re: Energy saving auto dimming street lights Bruce Horrocks <07.013@scorecrow.com> - 2018-01-04 01:10 +0000
          Re: Energy saving auto dimming street lights JAB <here@toadsfoot.net> - 2018-01-03 20:15 -0600
            Re: Energy saving auto dimming street lights Bruce Horrocks <07.013@scorecrow.com> - 2018-01-05 00:19 +0000
              Re: Energy saving auto dimming street lights JAB <here@toadsfoot.net> - 2018-01-04 19:16 -0600
                Re: Energy saving auto dimming street lights DerbyBorn <Somewhere@Nearhome.com> - 2018-01-07 12:59 +0000
    Re: Energy saving auto dimming street lights Robin <rbw0@hotmail.com> - 2018-01-03 12:51 +0000
      Re: Energy saving auto dimming street lights JAB <here@toadsfoot.net> - 2018-01-03 08:05 -0600
      Re: Energy saving auto dimming street lights "Rod Speed" <rod.speed.aaa@gmail.com> - 2018-01-04 06:04 +1100
    Re: Energy saving auto dimming street lights "Brian Gaff" <briang1@blueyonder.co.uk> - 2018-01-03 15:04 +0000
      Re: Energy saving auto dimming street lights Harry Bloomfield <harry.m1byt@NOSPAM.tiscali.co.uk> - 2018-01-03 16:52 +0000
    Re: Energy saving auto dimming street lights andrew@cucumber.demon.co.uk (Andrew Gabriel) - 2018-01-03 17:47 +0000
      Re: Energy saving auto dimming street lights charles <charles@candehope.me.uk> - 2018-01-03 18:34 +0000
        Re: Energy saving auto dimming street lights Andy Burns <usenet@andyburns.uk> - 2018-01-04 12:23 +0000

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