If you want to know why Denmark is the world’s leader in wind power, start with a three-hour car trip from the capital Copenhagen — mind the bicyclists — to the small town of Lem on the far west coast of Jutland. You’ll feel it as you cross the 4.2 mile-long Great Belt Bridge: Denmark’s bountiful wind, so fierce even on a calm summer’s day that it threatens to shove your car into the waves below. But wind itself is only part of the reason. In Lem, workers in factories the size of aircraft hangars build the wind turbines sold by Vestas, the Danish company that has emerged as the industry’s top manufacturer around the globe. The work is both gross and fine; employees weld together massive curved sheets of steel to make central shafts as tall as a 14-story building, and assemble engine housings that hold some 18,000 separate parts. Most impressive are the turbine’s blades, which scoop the wind with each sweeping revolution. As smooth as an Olympic swimsuit and honed to aerodynamic perfection, each blade weighs in at 15,400 lbs. , and they’re what help make Vestas’ turbines the best in the world. “The blade is where the secret is,” says Erik Therkelsen, a Vestas executive. “If we can make [a turbine], it’s sold.”
But technology, like the wind itself, is just one more part of the reason for Denmark’s dominance. In the end, it happened because Denmark had the political and public will to decide that it wanted to be a leader — and to follow through. Beginning in 1979, the government began a determined program of subsidies and loan guarantees to build up its nascent wind industry. Copenhagen covered 30% of investment costs, and guaranteed loans for large turbine exporters such as Vestas. It also mandated that utilities purchase wind energy at a preferential price — thus guaranteeing investors a customer base. Energy taxes were channeled into research centers, where engineers crafted designs that would eventually produce cutting-edge giants like Vestas’ 3-megawatt V90 turbine.
