Representative of modern office buildings
Building 409 was built in 2016 and covers 2,000 m2, on two levels. The facade is made of glass and inside there are raw concrete walls, a grey cement floor, and visible installations on a ceiling lined with pipes.
Building 409 represents a very small part of the total electricity consumption at DTU Lyngby Campus, but the 43 per cent energy savings that Bo Carlsen achieves by turning off all equipment over a weekend shows shows what can be saved in all the buildings that primarily house office facilities.
Bo Carlsen often hears people say that changes in one’s own behaviour are a drop in the ocean; that what the individual does isn’t very important. But for him, the experiment in Building 409 and the use of the Energy Dashboard prove otherwise. They show that changes in behaviour can have a great impact, and that the Dashboard can help promote energy-saving behaviour.
Monitors household consumption
While he’s at work, Bo Carslen keeps an eye on the energy consumption in his own home using a program that’s similar to DTU’s Energy Dashboard. He is shown a floor plan of his newly built house.
Bo Carlsen can see on the screen that his son, Emil, is home from school, as the program shows 580 watts being consumed inside his room. It costs Bo Carlsen two kroner per hour when Emil plays on his computer. There’s also activity in another room in the house. Bo Carlsen attributes this to his other son Magnus, who’s probably using his iPad and may have the light on in his room.
Bo Carlsen started keeping an eye on his family’s energy consumption when energy prices skyrocketed in spring. He found that his household’s base consumption was around 1,000 watts a day. He was surprised by how high it was, and started to look into it in more detail.
On his desk at home, Bo Carlsen had two computer monitors and a Sonos speaker. And both boys had the same setup in their rooms. Bo bought some power strips so the equipment could be turned off when it wasn’t being used. As a result, the consumption fell slightly.
He kept looking. The Carlsen family had a Sonos speaker in every room of the house. They used just as much electricity when they weren’t playing music as when they were, Bo Carlsen learned. He made sure to turn off the speakers at night, when they weren’t being used, and before they went out.
This made the family’s base consumption drop to 400 watts a day. That’s a reduction of 60 per cent, simply by eliminating standby consumption.
Bo Carlsen is happy with this, and it gives him more motivation to minimize unnecessary energy waste at DTU.