Latest / The Productivity Podcast with Fexingo: Output, Efficiency, and Long-Term Economic Growth / How Danish Wind Power Cut Electricity Costs by 60 Percent
Transcript
- Lucas: So Denmark now gets over 50 percent of its electricity from wind. That's the headline everyone knows. But the part that doesn't get enough attention is what it did to the price. Luna: You mean it actually made electricity cheaper? I feel like the instinct is to assume green energy means higher costs. Lucas: Right. And that's true in a lot of places. But Denmark is a real outlier. Since 2010, wholesale electricity prices there have fallen by about 60 percent. And wind is the main reason. Luna: Okay, that's a huge number. How did they pull it off when Germany, for example, has seen household prices go up? Lucas: It comes down to three things, I think. First, they were early. Denmark started building serious offshore wind in the early 2000s, long before most countries. That meant they had a decade-plus of learning curve benefits — installation costs dropped, turbine efficiency improved, and the industry matured. Luna: So they got the cheap part of the learning curve. But early adoption usually means paying more upfront, doesn't it? Lucas: It does. And they did. The government used feed-in tariffs — guaranteed above-market prices for wind producers — to get the first projects built. That cost consumers money in the early years. But as the technology got cheaper and the turbines got bigger, those tariffs came down. Now many new offshore wind farms in Denmark are subsidy-free. Luna: So they front-loaded the cost, then reaped the benefit. That makes sense, but it's politically hard. What's the second thing? Lucas: The second factor is ownership structure. About half of Denmark's wind turbines are owned by local cooperatives or individual farmers. So when you see a turbine on a hillside, it's not just a utility asset — it's owned by the people living there. Luna: That's totally different from the model in most countries. Does that matter for the economics? Lucas: It matters a lot, politically. Because when the feed-in tariffs raised electricity bills, the people paying them were also the people receiving the checks from the turbine. So there was way less backlash. In Germany, by contrast, the renewable surcharge went to big utilities and distant project developers, and households saw their bills rise without any direct benefit. That created political friction. Luna: So the cooperative model bought the social license to keep expanding. That's clever. Lucas: Exactly. And the third piece is the grid itself. Denmark has invested heavily in interconnectors — undersea cables to Norway, Sweden, Germany, and now the UK. That solves wind's biggest problem, which is intermittency. Luna: Right, because when the wind doesn't blow, you need backup. They can import hydro from Norway. Lucas: Exactly. Norway's grid is mostly hydropower, which is dispatchable — you can turn it on and off. So when Denmark has excess wind power, it exports to Norway and effectively saves water in their reservoirs. When the wind dies down, it imports hydro. It's a perfect complement. Luna: So the interconnectors turn wind from a variable source into something almost like baseload, because you can always trade. Lucas: Right. And it's not just Norway. The cable to Germany lets Denmark sell wind when Germany has low renewable output, and buy when Germany has excess solar. That actually makes the whole Nordic-Baltic region more efficient. Luna: So the price drop — 60 percent — is a combination of cheaper turbines, social acceptance that allowed scale, and grid integration. Anyone can copy that blueprint? Lucas: In principle, yes. But it takes time. The cooperative ownership is hard to replicate if you don't have that tradition. And building interconnectors is expensive — the Viking Link to the UK cost about $2 billion. But the payoff is real. Danish industrial users now pay among the lowest electricity prices in Europe. Luna: That's a direct productivity boost for manufacturing. Cheaper power means lower input costs. Lucas: And that's the part that doesn't get told enough. The green transition in Denmark wasn't just about climate — it was an industrial strategy. They bet that cheap renewable power would attract energy-intensive industry. And it's working. Data centers are setting up there. Green hydrogen projects are being planned. The country is turning its wind into an export advantage. Luna: So the narrative flips: green energy as competitiveness tool, not cost burden. Lucas: Exactly. And it's not just Denmark. Look at the Baltic Sea region — Poland is now building offshore wind. Sweden is planning more. The whole area is becoming a renewable powerhouse. But Denmark showed the path. Luna: I want to come back to that cooperative ownership model for a second. How did it actually work? Were people just buying shares in a local turbine? Lucas: Pretty much. The early wind cooperatives were groups of neighbors who each put in maybe $5,000 or $10,000 to fund a turbine. They'd get a share of the revenue from the electricity sold. Some farms had a single turbine owned by the family. By the late 1990s, there were thousands of such cooperatives. Luna: And these weren't rich people? This was regular farmers? Lucas: Farmers, teachers, local shopkeepers. It was very broad-based. And the government encouraged it with tax incentives. At one point, you could get a tax deduction for investing in a wind cooperative. That made it attractive even for people who weren't already wealthy. Luna: So the policy wasn't just 'build wind' — it was 'let's make sure a lot of people have skin in the game.' That changes the politics completely. Lucas: It does. And it's one reason Denmark avoided the kind of rural backlash you see in other countries where wind farms are imposed by outside developers. The locals were the developers. Luna: What about the grid operators? They had to adapt too, right? Integrating 50 percent wind isn't trivial. Lucas: Absolutely. The main grid operator, Energinet, had to completely rethink how they balance supply and demand. They invested in better forecasting, real-time data, and they use the interconnectors aggressively. They also have a market mechanism where big consumers get paid to reduce demand when the grid is stressed. So it's not just supply-side flexibility. Luna: Demand response. That's a smart complement. If you can get factories to shift their electricity use to windy hours, you smooth out the peaks. Lucas: Exactly. And some Danish companies have gotten very good at that. There's a cement plant that adjusts its grinding schedule based on wind forecasts. That's a real operational change, and it saves them money because they buy power when it's cheapest. Luna: So the whole system becomes more dynamic. That's a productivity gain in itself — using resources more efficiently. Lucas: And it's measurable. The Danish Energy Agency estimates that the integration measures — interconnectors, demand response, better forecasting — have reduced the cost of wind integration by about 30 percent compared to what it would have been without them. Luna: Thirty percent is not trivial. So the lesson isn't just 'build wind,' it's 'build the whole ecosystem around it.' Lucas: That's the real takeaway. The turbines are the visible part. But the invisible part — the grid, the markets, the ownership structures — that's what makes it work economically. Luna: And that's what other countries often miss. They see the turbines and think 'we can do that,' but they don't invest in the interconnectors or the demand response systems. Lucas: Exactly. And then they end up with high costs or stability problems, and the whole thing gets blamed on renewables. Denmark shows that if you do it right, renewables can actually lower costs. Luna: It's a bit like the episode we did on the Panama Canal expansion — the physical infrastructure is only part of the story; the logistics and coordination matter just as much. Lucas: That's a perfect comparison. The canal is the hardware. The scheduling system, the tolling structure, the coordination with ports — that's the software. Same with wind. The turbines are hardware. The grid integration and market design are the software. Luna: And Denmark wrote that software. They've been at it for 30 years. Lucas: Exactly. And now they're seeing the payoff. Wholesale electricity prices in the first half of 2026 averaged around 30 euros per megawatt-hour. Compare that to 80 or 90 euros in much of continental Europe. That's a massive difference for any business that uses a lot of electricity. Luna: It makes Denmark a really attractive place for data centers, green hydrogen, even some manufacturing. So it's not just an environmental story — it's an economic development story. Lucas: And if you're a policymaker in another country, that's the part to study. Not just the renewable targets, but the whole system design. How do you get community buy-in? How do you build the grid? How do you design markets so that flexibility is rewarded? Luna: Speaking of systems, this show itself runs on a kind of system — listener support. If walking through the economy with us has made something click, we do have a way you can keep us going. Lucas: Yeah. We're ad-free and listener-supported. If you find value in these deep dives, you can support the show at buy me a coffee dot com slash fexingo. That's buy me a coffee dot com slash fexingo. Luna: And we mean it — every bit helps. We're not asking for a subscription, just a one-time thing if the show's been useful to you. Lucas: So back to Denmark. The big question now is whether they can keep that advantage as other countries catch up. Germany is building interconnectors. The UK is expanding offshore wind. The competitive edge might narrow. Luna: But Denmark has a head start, and they're already moving to the next phase — using that cheap power to produce green hydrogen for export. They're positioning themselves as an energy-exporting nation. Lucas: Right. The new project in Esbjerg — a large-scale electrolyzer — will turn wind power into hydrogen that can be shipped to Germany and elsewhere. That's a way of exporting the renewable energy even when the cables are full. Luna: So the productivity story keeps evolving. It started with building turbines, then integrating the grid, now it's about using the energy to create new export products. Lucas: Exactly. And that's the real measure of a productivity success — not just doing one thing efficiently, but building a system that keeps generating new opportunities. Denmark's wind story is a case study in that. Luna: It really is. And it's a reminder that productivity isn't just about doing the same thing faster — it's about rethinking the whole system. Lucas: Which is the perfect note to end on. Thanks for listening.