Bjorn Nyland On Norway’s Genius Self-Dimming Streetlights – Video

Bjorn Nyland


It seems Norway continues to prove its focus on saving energy and protecting the environment. Bjorn Nyland shares the country’s amazing auto-dimming streetlights.

Bjorn Nyland

Bjorn Nyland shows us Norway’s energy-saving auto-dimming streetlights

Think of the number of lights that stay on 24 hours a day throughout the world, and the amount of energy wasted. This is true of many schools and government buildings in the U.S. (of all places, of course), though now some have switched to motion-activated lights.

The lighting on our roads is another culprit. Many roads go untraveled for hours at a time in the middle of the night, however, streetlights and traffic lights stay on.

In Norway, some roads have lights with radar that detects traffic and automatically makes the light brighter. After the traffic passes by, the lights dim to save energy. According to Bjorn Nyland, the technology on this 5.5-mile stretch of road in Norway will pay for itself in about 4.5 years.

Video Description via Bjorn Nyland on YouTube:

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.

Nyland admitted that the settings on his camera may have made it a bit difficult to notice the drastic difference in the lights from dim to bright. Below is another similar video filmed on the same stretch of road, which makes the transition visually clear. Fast forward to the last minute and 20 seconds to see the streetlights adjust from bright to dim.

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16 Comments on "Bjorn Nyland On Norway’s Genius Self-Dimming Streetlights – Video"

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The LED streetlights in my neighborhood outside Boston automatically dim after rush hour and are tuned to the same color frequency as the moon in their dim setting so as to not be obtrusive. Assuming that Norway is so much sparser in population that they don’t have a well defined rush hour? It seems like a timer will get you 80% of the benefits on most US roads without the need for fancy radars.

Interesting, but what does this have to do with EVs?

Time for you to start a website dedicated to EVs and EVs only.

I know Bjorn drives fast, but that video was making me sick. Way to fast for conditions. He must have sped up the video?

But, yes, this is a great idea.
Conservation of energy is the fastest way to saving money.
Don’t use it in the first place.

Does it adjust to the speed of the driver?
Looks like it’s always 100 yards ahead.

“Think of the number of lights that stay on 24 hours a day throughout the world”

Huh? I’m trying to think of them, and I can’t think of any. Most of the outdoor lights here in Wisconsin are at least on a light sensor. And yes, we have motion activated lights in places too.

Hyperbole makes a lot of articles on this site less convincing.

Exit sign lights and fire escape lights are two such examples.

My own employer started replacing all their fluorescent lights with GE LEDs that are pretty amazing. They are designed to retrofit into existing ceiling tile lights, have motion sensors to turn off, and also have ambient light sensors to dim automatically around windows etc. with these, no 24/7 fire lighting is needed either, so when nobody’s around they all turn off.

And not only do they save a bunch of energy, but we’re also cutting out lots of mercury from the wastestream by eliminating all those fluorescents. It’s a really great product.

Oh. And they’re each warranties for 10 years. Tons of maintenance savings too.

Disclaimer: Don’t work for GE and don’t own any stock from GE. 🙂

I think in the United States, those roads shown in the video probably wouldn’t be lit anyways, which is much simpler, cheaper, and more energy efficient. Norway probably just lights more than we do because they have virtually free electricity due to abundant hydroelectric. Also, their abundant oil reserves fund much of their public spending.

It would be extremely hard to find an unlit road in my are so i have no idea what you are thalking about.

Outside of Texas and California, most states don’t light up their freeways or rural roads. That’s what your head lights are for. Street lights are primarily used in metropolitan areas where pedestrian traffic is expected. There is no need to add to the already bad levels of light pollution.

Florida lights most of its roads, especially the further south you go. The last several hundred miles of the state its hard to find an unlit road.

Self dimming street lights is a good idea also because it saves power in the grid. This makes room for chargers.

The benefits of this go way beyond grid savings. In recent studies, it was observed the negative effects of our lights that stay on all night on wildlife. This will not eliminate that problem but will make it a little better.

It also would reduce light pollution, that is really bad for amateur astronomers.

It is cheaper and more efficient to not light up the streets and it is also light pollution for star gazers…

My work parking lot are already covered by LED lights that are motion sensitive. So, this isn’t a big deal.

I think buildings and parking lots or any lighted busy area should have sensor controlled dimming. But rural roads or rural hwy with low traffics at night shouldn’t bother to have lights.