This story originally appeared on Inside Energy's Series "Blackout: Reinventing the Grid."
On the outskirts of Copenhagen, in a nondescript tan brick building, is a lab that could hold the keys to the electricity grid of the future. PowerLabDK, at the Danish Technical University, has Europe’s largest grid simulator as well as a high voltage test lab, where researchers can create lightning using a massive capacitor bank. But the most exciting feature is largely invisible: a real-time connection to the grid control room on the Danish island of Bornholm.
“We can really stress the solutions that are needed to deal with a lot of fluctuating renewables,” Østergaard said.
In other words, they can use Bornholm as a real-life test lab for the grid of the future.
Last year, Denmark got 40 percent of its electricity from wind. By 2030, the country’s entire power system is supposed to be 100 percent renewable. Unlike traditional energy sources, like gas and coal, wind and solar are highly variable—there one minute, gone the next. That’s a huge challenge for operating the power grid, which has to balance supply and demand in real-time. But by testing out solutions on Bornholm first, researchers are hoping they’ll be ready: “We at the university can sit behind our computer screens and simulate everything, everything goes smooth, no problem, but when you go to reality you really meet all the true challenges,” Østergaard said.
Bornholm, though, feels like anything but a lab. In fact, it’s more like a resort. On the ferry to the island, most people are vacationers, going to golf or hike or sail or just hang out at the beach. Bornholm’s unofficial anthem, an upbeat tune from an old movie, with lines about sunshine and smoked herring, plays over the loudspeakers, creating a folksy atmosphere. The ferry docks in the island’s main town of Rønne, a picturesque hamlet full of colorful houses with red roofs that would be a good setting for a postcard photography workshop.