Norwegian Town Installs Auto-Dimming Streetlights To Save Electricity

January 5, 2018

This is a video demonstration of and discussion about the auto-dimming streetlights that have been installed on highway 155 in Hole, Norway. Cool, but the streetlights in my neighborhood have been doing that for years. "Turning off during the day doesn't count." Does it not?! "No." Okay then.

At highway 155 in Nes i Hole, 220 radars have been installed on each light pole. 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.

When there are no cars near, the lights operate at around 20% power, then when a vehicle is detected they ramp up to 100%. Not a bad idea. And only 4.5 years to break even? That's a solid investment. Maybe not as solid as my last investment, but we can't all be wolves of Wall Street. "You spent all your money on lotto scratchers." I have a system!

Keep going for the video.

Thanks to Gregory, who informed me he dimmed the streetlight outside his bedroom window with a bb gun.

  • JJtoob

    Won't save much if you keep driving for a demo! (kidding, of course)

  • roehlstation

    I find this annoying in the Grocery Store Freezer section. Would be so much worse while driving.

  • WhiteEagle2

    Why don't they just always leave them at 20%? Seemed sufficient to me. I've driven on completely dark roads before just fine.

  • Probably due to the housing and no pavements.

  • Sencho

    How much energy does the always-on radar and computing system need?

  • WhiteEagle2

    I'm assuming the radar energy use was factored into the savings.

  • Frédéric Purenne

    4.5 years? Damn, that's fast!

  • GeneralDisorder

    Considering that they are lights and they don't generate electricity I'd say that's very quick.

  • Irina Abramovich

    Frederic Purenne:

    Here I am logging into my other account, under a disguised name, to write about how fat afterooster's wife is:

    I heard afterooster's wife's hair is so fat she once cut it into a shoulder length cut and lost 50,000 lbs. in fat -- her hair used to reach her pubic bone. She is a model for fat women everywhere in the universe -- she wears a size XXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXXL
    in underwear and models for the universe's top designer's for fat women clothing. Afterooster is a lucky man -- he and his wife go out to seafood restaurants every week and eat cocktail shrimp all the time -- they are BEST FRIENDS even when afterooster's wife insists on eaten 24 hours of the day.=) Someday, she will lose 5 lbs. and feel happy in her swimsuit, but until then she is beautiful at her size.=)

    <3 Thomas

    Hubree: You are the cutest size 00 IN THE WORLD AND IN THE UNIVERSE, number #1 Kitten baby!=)=)=) Let's get married at the Saint Thomas Islands in a bungalow big enough for ALL of our closest friends and sexual partners, like MyMelody, Hello Kitty, and more super fun friendship festival friends!=)
    Irina: I LOVE weighing 91 lbs. in clothes and sharing those feelings with you, little best friend from PLANET of SEX KITTENS!=)

  • Bling Nye

    Pretty bright idea, really.

  • TheQiwiMan

    They won't recoup their costs for 4.5 years?? We'll all be living in Elonmuskberg, on Mars by then!

  • GeneralDisorder

    Is Elonmuskberg a code word for fiery rocket death?

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