Latest / The Productivity Podcast with Fexingo: Output, Efficiency, and Long-Term Economic Growth / How Denmark Built the World's Most Productive Wind Industry
Transcript
- Lucas: So, Denmark. You hear the wind-energy numbers and they're impressive — about 50 percent of their electricity comes from wind on a typical day. But what I want to talk about is not the share of electricity. It's productivity. Danish wind turbines have a capacity factor — that's the actual output divided by the maximum possible — of over 40 percent. The global average for onshore wind is around 25 to 30 percent. So Denmark is getting nearly twice as much energy per turbine. Luna: That's a huge gap. Is it just because Denmark is windy? Or is there something about how they built the industry? Lucas: It's partly the wind — Denmark sits in a sweet spot in the North Sea. But the real story is a set of deliberate choices that go back to the 1970s. The 1973 oil crisis hit Denmark hard. The country was 99 percent dependent on imported oil. So they decided to invest in wind power as a strategic imperative. And they did it differently from almost everyone else. Luna: I remember reading that early wind turbines in Denmark were owned by farmers and local cooperatives, not big utilities. Is that part of it? Lucas: Exactly. In the 1980s and 90s, the Danish government required that at least 20 percent of any new wind farm project be offered to local residents as shares. So you had thousands of small investors — farmers, teachers, shopkeepers — owning a piece of the wind turbines in their community. That created a powerful political constituency for wind power. No one was fighting it the way you see in other countries, because the people who lived near the turbines also owned them and benefited directly. Luna: That's clever. It solves the NIMBY problem by turning neighbours into shareholders. Lucas: Precisely. And it also meant that the industry developed a culture of reliability. These weren't faceless corporations — the owners were the people who had to live with the noise and the visual impact. So turbines had to be well-maintained and efficient. That pushed manufacturers like Vestas and Bonus Energy to build machines that were robust and high-performing. Luna: And what about the grid? You can have great turbines, but if the grid can't handle the variability, you lose a lot of that potential. Lucas: That's the next piece. Denmark invested heavily in grid interconnection — both internally and with neighbours like Norway, Sweden, and Germany. When the wind is blowing hard in Denmark, they can export excess power to Norway and let Norway's hydro reservoirs store it. And when the wind is calm, they import hydro power from Norway. It's a giant virtual battery. This is a big reason their capacity factor is so high — they rarely have to curtail production. Luna: So the grid is designed as a balancing system, not just a one-way pipe. Lucas: Right. And that required long-term planning and regulatory consistency. Denmark has had a stable energy policy framework for decades, even as governments changed. That stability gave companies like Orsted — which started as a state-owned oil and gas company — the confidence to transform into a global offshore wind leader. Orsted now has the largest installed base of offshore wind capacity in the world. Luna: But all of this must have cost a lot of money. How did they finance it? Were there huge subsidies? Lucas: So, there were subsidies — feed-in tariffs and a carbon tax on fossil fuels. But the total subsidy cost per kilowatt-hour in Denmark is actually lower than in many other countries, because the turbines are so productive. The Danish Energy Agency estimates that the total cost of wind power, including subsidies, has been declining steadily. And now, offshore wind in Denmark is being built without subsidies at all — like the Kriegers Flak offshore wind farm, which won a zero-subsidy bid in 2016. Luna: Zero subsidy? That's remarkable for offshore wind, which is typically more expensive than onshore. Lucas: It is, and it shows how far the technology has come. But the key takeaway isn't just that Denmark has wind turbines. It's that they built an entire ecosystem — policy, ownership, grid, manufacturing — that optimised for long-term productivity. They didn't just put up turbines wherever. They sited them in the windiest locations, designed the grid to handle high penetration, and aligned incentives so that everyone from the local farmer to the national utility was pulling in the same direction. Luna: It sounds almost like a national project, like how South Korea coordinated its electronics industry. But with wind. Lucas: Exactly. And that coordination is what made the productivity gains possible. If you look at the global capacity factor data, Denmark is an outlier not because its wind resource is uniquely better — the UK and Ireland have similar wind speeds — but because of how they managed the system. The UK's onshore wind capacity factor averages around 28 percent. Denmark's is over 40. That's a 40 percent productivity advantage from system design, not from nature. Luna: I wonder if there are lessons here for other sectors. I mean, the idea of aligning ownership, grid design, and policy — that's a template for any infrastructure-heavy industry. Lucas: Absolutely. And that's really why we explore these cases on the show — not just to admire, but to see what's transferable. One thing I find striking is how much of Denmark's success came from decisions made in the 1970s and 80s. That's fifty years of consistent focus. Most countries change energy policy every election cycle. Luna: Right. And maybe that long-term thinking is the hardest thing to replicate. But the cooperative ownership model — that could be adapted. I've seen community solar projects in the US that are trying something similar. Lucas: Yeah, and they face a lot of regulatory hurdles that Denmark smoothed out early. But it's worth studying. If we're serious about energy transitions elsewhere, the Danish story shows that productivity isn't just about technology — it's about institutions and incentives. Luna: Before we wrap up, I have to ask — what about the future? Denmark is already at 50 percent wind. Can they go higher? Lucas: They're planning to. The Danish government has a target of 100 percent renewable electricity by 2030, with wind providing the bulk. And they're investing in new offshore wind farms like the Energy Island in the North Sea — a hub that will connect hundreds of turbines and also serve as a balancing point for cross-border power flows. The technology is getting better, too. The latest offshore turbines have capacity factors approaching 60 percent. So, yes, they can go higher. The question is whether the grid and market design can keep up. Luna: That's a fascinating case study. And it really drives home the point that productivity isn't just about working harder — it's about designing smarter systems. Lucas: Exactly. And that's the lens we try to bring to every episode. If you're getting value from these deep dives and you want to help us keep the podcast ad-free and independent, you can support the show at buy me a coffee dot com slash fexingo. That's buy me a coffee dot com slash fexingo. No pressure at all — just a way for listeners who find the content useful to chip in. Luna: Yeah, we really appreciate every bit of support. It helps us spend the time on research and scripting that makes episodes like this one possible. Lucas: Alright, back to Denmark. One more thing I want to mention is the role of orsted in driving down costs. They invested heavily in larger turbines and better foundations, and they shared that learning with the supply chain. That kind of vertical learning curve is another reason Danish wind productivity is so high. Luna: So it's not just policy, it's also industrial strategy. A lot of countries have the wind, but not the ecosystem. Lucas: Exactly. And that's the core lesson: productivity is an emergent property of a well-designed system. Denmark didn't luck into it. They built it, over decades, with patience and consistency. Luna: Well, that's a great note to end on. Thanks for joining us on The Productivity Podcast. Lucas: Thanks, Luna. And to our listeners, we'll see you next time.