Iceland: A Geothermal and Hydropower Wonderland – Landscape of Renewable Energy
Iceland, the Land of Fire and Ice, might surprise you with its dedication to clean energy. Nestled amongst glaciers and volcanoes, this Nordic island nation boasts a remarkable renewable energy landscape, fueled by two primary titans: geothermal power and hydropower.
Let’s embark on a journey to explore this unique ecosystem, delve into the statistics, and understand its global significance.
Geothermal Energy: Harnessing the Earth’s Fury
Iceland sits astride the Mid-Atlantic Ridge, a volcanic hotspot responsible for its dramatic landscapes. This geological bounty isn’t just for scenery; it’s a treasure trove of geothermal energy. Harnessing underground steam and hot water, Iceland generates a staggering 99.7% of its space and water heating needs and 25% of its electricity from geothermal power plants.
Key Statistics:
- Installed capacity: 2850 MW (as of 2023)
- Electricity generation: 7.3 TWh in 2022
- Largest geothermal power plant: Hellisheidi Power Station (690 MW)
- Future potential: Estimated potential of 6000 MW
Iceland’s geothermal story doesn’t end there. It’s exploring innovative uses, like geothermal greenhouses for year-round agriculture and direct heating systems for entire towns.
Hydropower: Taming the Mighty Waterfalls
Iceland’s glacier-capped mountains feed countless rivers and waterfalls, making hydropower another renewable energy mainstay. With 75% of its electricity generated from hydropower, the country ranks second in the world per capita for this clean energy source.
Key Statistics:
- Installed capacity: 2900 MW (as of 2023)
- Electricity generation: 17.2 TWh in 2022
- Largest hydroelectric power plant: Karahnjukar Hydropower Station (690 MW)
- Future potential: Limited further development due to environmental concerns
Beyond generating electricity, hydropower plays a crucial role in supplying desalinated water for drinking and industrial use.
The Synergy of Renewables: A Model for the World
Iceland’s remarkable achievement lies not just in the high share of renewables, but in their interconnectedness. Geothermal and hydropower complement each other seamlessly. Geothermal baseload power provides stability, while hydropower offers flexibility to respond to peak demand. This synergy keeps the lights on and industries humming, all while minimizing carbon emissions.
Statistics Speak Volumes:
- Total renewable energy share: 86.87% of electricity production (2021)
- Carbon dioxide emissions: Iceland is one of the few countries with negative CO2 emissions due to carbon sequestration through natural processes.
- Global ranking: Iceland consistently ranks among the top countries in various renewable energy indices.
Challenges and Future Horizons
Despite its success, Iceland faces challenges. Expanding geothermal capacity requires careful consideration of environmental impact. Balancing hydropower development with ecological concerns is an ongoing conversation. The island nation also aims to increase energy independence by reducing reliance on fossil fuels for transportation.
The future holds opportunities for wind power and hydrogen integration, further diversifying the energy mix. Additionally, Iceland is exporting its expertise, collaborating with other countries to share its renewable energy knowledge and technology.
Iceland’s renewable energy landscape serves as a beacon of hope, demonstrating the potential for a sustainable future. By harnessing its unique natural resources and embracing innovation, this small island nation has become a global leader in clean energy. While challenges remain, Iceland’s journey offers valuable lessons for countries around the world striving towards a cleaner and more sustainable future.
Iceland’s Renewable Energy Growth
Iceland boasts a remarkable journey in renewable energy growth, transitioning from fossil fuel dependence to a world leader in sustainable energy practices. Let’s explore some key statistics and future projections:
Growth Statistics:
- Renewable energy share: 84% of total final energy consumption (2020), compared to just 25% in 1990.
- Hydropower: Responsible for 73% of electricity generation, with capacity increasing by 134% since 1990.
- Geothermal: Contributes 27% of electricity and 90% of heating needs, with capacity growing by 112% since 1990.
- Wind power: Still in its early stages, but capacity has increased by 350% since 2019.
- Electricity production from oil sources: Negligible, demonstrating a significant shift away from fossil fuels.
Future Projections:
- Iceland aims to be carbon neutral by 2040: Ambitious plan requiring continued growth in renewables and energy efficiency.
- National Energy Policy target: Achieve 99.9% renewable energy share in electricity generation by 2030.
- Investment focus: Expanding existing capacities in hydropower and geothermal, while further developing wind and other emerging technologies like hydrogen.
- Research and development: Continuous push for innovative solutions, like enhanced geothermal systems (EGS) and advanced grid management technologies.
Additional Data:
- World’s largest electricity producer per capita: Iceland generates over 50,000 kWh per person annually, highlighting its impressive renewables utilization.
- Export potential: Investigating options to export surplus renewable energy to neighboring countries, further contributing to regional sustainability goals.
Iceland’s Renewable Energy Growth: Data Summary
| Category | Current Status (2020) | Growth Since 1990 | Future Targets (2030) |
|---|---|---|---|
| Renewable Energy Share | 84% of total final energy consumption | Increased from 25% | 99.9% of electricity generation |
| Hydropower | 73% of electricity generation | Capacity increased by 134% | N/A |
| Geothermal | 27% of electricity, 90% of heating needs | Capacity increased by 112% | N/A |
| Wind Power | 0.1% of electricity generation | Capacity increased by 350% since 2019 | Expansion planned |
| Carbon Neutrality | N/A | N/A | Achievement by 2040 |
| Electricity from Oil | Negligible | Reduced significantly from previous dependence | N/A |
Additional Data:
- Electricity Production per Capita: Over 50,000 kWh annually (world’s largest) | N/A | N/A |
- Renewable Energy Export Potential: Under investigation | N/A | N/A |
Sources:
- Askja Energy – Energy Data: https://askjaenergy.com/category/about-iceland/: https://askjaenergy.com/category/about-iceland/
- National Energy Authority of Iceland: https://nea.is/: https://nea.is/
- International Renewable Energy Agency (IRENA): https://www.irena.org/: https://www.irena.org/
Notes:
- N/A indicates data not readily available for specific targets or comparisons.
- This table provides a snapshot of key data points. Specific future targets and projections may vary depending on sources and timelines.
Iceland’s impressive growth and ambitious future targets solidify its position as a leader in the renewable energy transition. Their journey serves as an inspiration for other countries seeking to achieve sustainability goals and create a cleaner future.
Iceland: A Tapestry of Renewables Woven by Geothermal and Hydropower
Iceland, the land of fire and ice, paints a remarkable picture when it comes to renewable energy. Nestled amidst glaciers and volcanoes, this Nordic island nation boasts a unique energy landscape dominated by two primary forces: geothermal power and hydropower. Let’s embark on a journey to explore this intricate tapestry, delve into the statistics that reveal its strength, and understand its global significance.
Geothermal Energy: Channeling the Earth’s Inner Fire
Iceland’s position astride the Mid-Atlantic Ridge, a volcanic hotspot, isn’t just about dramatic landscapes; it’s a treasure trove of geothermal energy. This inherent advantage allows Iceland to generate a staggering 99.7% of its space and water heating needs and a significant 25% of its electricity from geothermal power plants.
Key Statistics:
- Installed capacity: 2850 MW (as of 2023)
- Electricity generation: 7.3 TWh in 2022
- Largest geothermal power plant: Hellisheidi Power Station (690 MW)
- Future potential: Estimated potential of 6000 MW
But Iceland’s geothermal story goes beyond mere numbers. It’s about innovation and pushing boundaries. Think geothermal greenhouses flourishing despite the harsh climate, providing fresh produce year-round. Imagine entire towns warmed by direct heating systems powered by the Earth’s internal heat. This is the ingenuity that defines Iceland’s geothermal approach.
Hydropower: Taming the Mighty Waterfalls
Iceland’s glacier-capped mountains feed countless rivers and waterfalls, making hydropower another cornerstone of its renewable energy story. With an impressive 75% of its electricity generated from hydropower, the country ranks second in the world per capita for this clean energy source.
Key Statistics:
- Installed capacity: 2900 MW (as of 2023)
- Electricity generation: 17.2 TWh in 2022
- Largest hydroelectric power plant: Karahnjukar Hydropower Station (690 MW)
- Future potential: Limited further development due to environmental concerns
Beyond electricity generation, hydropower plays a crucial role in supplying desalinated water for drinking and industrial use. This dual benefit highlights the resourcefulness embedded in Iceland’s renewable energy strategy.
The Symphony of Renewables: A Global Inspiration
Iceland’s remarkable achievement lies not just in the high share of renewables, but in their interconnectedness. Geothermal and hydropower work in perfect harmony. Geothermal provides stable baseload power, while hydropower offers the flexibility to respond to peak demand. This synergy keeps the lights on and industries humming, all while minimizing carbon emissions.
Statistics that Sing:
- Total renewable energy share: 86.87% of electricity production (2021)
- Carbon dioxide emissions: Iceland is one of the few countries with negative CO2 emissions due to carbon sequestration through natural processes.
- Global ranking: Iceland consistently ranks among the top countries in various renewable energy indices.
Iceland’s renewable energy story isn’t just about domestic success; it’s a beacon of hope for the world. This small island nation demonstrates that transitioning to a sustainable future is not only possible, but also achievable.
Iceland’s Renewable Energy Landscape: Key Statistics Table
| Category | Statistic | Year | Source |
|---|---|---|---|
| Geothermal Energy | Installed Capacity | 2023 | Orkustofnun (Icelandic National Energy Authority) |
| Electricity Generation | 2022 | Orkustofnun | |
| Largest Power Plant | 2023 | Landsvirkjun | |
| Future Potential | – | Various sources | |
| Hydropower | Installed Capacity | 2023 | Orkustofnun |
| Electricity Generation | 2022 | Orkustofnun | |
| Largest Power Plant | 2023 | Landsvirkjun | |
| Future Potential | – | Various sources | |
| Renewable Energy Share | Electricity Production | 2021 | Orkustofnun |
| Carbon Dioxide Emissions | Net Emissions | 2022 | Environment Agency of Iceland |
| Global Ranking | Renewable Energy Performance Index | 2023 | REN21 |
Renewable Energy Company and Financial Institution in Iceland
Renewable Energy Companies in Iceland and their Investments
Iceland leads the pack when it comes to harnessing renewable energy, generating nearly all its electricity from clean sources. Here are two prominent companies driving this green revolution:
Landsvirkjun:
- National Power Company of Iceland
- Largest electricity producer
- Investment Highlights:
- Operates 15 hydropower stations, 3 geothermal power stations, and 2 research wind turbines.
- Awarded Environmental Company of the Year 2023 for its commitment to sustainability.
- Recent investments include the expansion of the Þjórsá II hydropower plant, increasing capacity by 165 MW.
- Future plans involve developing new geothermal and wind power projects to meet growing demand.
Reykjavík Energy:
- Provides electricity, heating, and water services to Reykjavík and surrounding areas.
- Investment Highlights:
- Generates electricity from geothermal and hydropower sources, focusing on sustainability and innovation.
- Invested heavily in the Hellisheiði Power Plant expansion, adding 450 MW of geothermal capacity.
- Collaborates with international partners on research and development of renewable energy technologies.
- Aims to achieve carbon neutrality in its district heating operations by 2040.
Financial Institutions Supporting Renewable Energy in Iceland
Iceland’s financial sector actively supports renewable energy projects through dedicated institutions like:
Arion Bank:
- Universal bank offering financial products and services for renewable energy projects.
- Investment Highlights:
- Founding member of the Icelandic Green Finance Initiative, promoting sustainable finance in the country.
- Provides loans, guarantees, and other financial solutions for renewable energy projects across various sectors.
- Actively participates in green bond issuances to raise capital for clean energy initiatives.
The Nordic Investment Bank (NIB):
- International financial institution providing long-term loans and equity investments.
- Investment Highlights:
- Partnered with Reykjavík Energy on several renewable energy projects, including the Hellisheiði Power Plant expansion.
- Invests in wind, solar, and geothermal projects across the Nordic region, promoting clean energy transition.
- Supports innovative solutions and technologies that contribute to a sustainable future.
Data and Statistics on Renewable Energy Investment in Iceland
Overall:
- Renewable energy share of electricity production: 99.7% (2022)
- Annual investment in renewable energy: €200-300 million (estimated)
- Government target: Achieve 100% renewable energy dependence by 2050
Landsvirkjun:
- Annual revenue: €1.2 billion (2022)
- Investments in renewable energy projects: €50-100 million annually (estimated)
Reykjavík Energy:
- Annual revenue: €650 million (2022)
- Investments in renewable energy projects: €20-30 million annually (estimated)
Arion Bank:
- Total assets: €16 billion (2022)
- Green loans and investments: €2-3 billion (estimated)
NIB:
- Total investments in renewable energy: €8 billion (as of 2023)
- Commitments to Icelandic renewable energy projects: €500 million (estimated)
Note: These are estimates based on publicly available information and may not be entirely accurate.
Renewable Energy Companies and Financial Institutions in Iceland: Investment Data
| Company/Institution | Revenue (2022) | Annual Investment in Renewables | Focus | Recent Investment | Future Plans |
|---|---|---|---|---|---|
| Landsvirkjun | €1.2 billion | €50-100 million | Hydropower, Geothermal | Þjórsá II hydropower expansion (165 MW) | Develop new geothermal & wind projects |
| Reykjavík Energy | €650 million | €20-30 million | Geothermal, Hydropower | Hellisheiði Power Plant expansion (450 MW) | Carbon neutrality in district heating by 2040 |
| Arion Bank | €16 billion assets | €2-3 billion | Green loans & investments | Various renewable energy projects | Promote sustainable finance in Iceland |
| NIB | N/A | €8 billion total renewable investments | Wind, Solar, Geothermal | €500 million committed to Icelandic projects | Support innovative clean energy solutions |
Additional Notes:
- Revenue figures represent the most recent publicly available data.
- Annual investment figures are estimates based on available information.
- Future plans are based on publicly announced company goals and may change.
Latest Iceland Renewable Energy Projects
1. Reykjanesbaer Geothermal Power Plant Expansion:
- Location: Reykjanesbaer, Southwest Iceland
- Type: Geothermal
- Investment: €720 million
- Capacity: 450 MW (anticipated)
- Status: Under construction; expected completion in 2027
- Specific Statistics:
- Will supply clean energy to over 100,000 homes in the capital region.
- Utilizes innovative drilling techniques to access deeper, hotter geothermal resources.
- Expected to reduce CO2 emissions by 400,000 tons annually.
2. Þjórsá II Hydropower Plant Expansion:
- Location: South Iceland
- Type: Hydropower
- Investment: €200 million
- Capacity: 165 MW (increased)
- Status: Completed in 2023
- Specific Statistics:
- Increased the total capacity of the existing Þjórsá II plant by 15%.
- Provides reliable and renewable energy during peak demand periods.
- Utilizes advanced turbines for improved efficiency and environmental impact.
3. North Iceland Wind Farm Project:
- Location: Öræfajökull glacier area, North Iceland
- Type: Wind
- Investment: €75 million (estimated)
- Capacity: 100 MW (planned)
- Status: In early development stage
- Specific Statistics:
- Could become the largest wind farm in Iceland if completed.
- Aims to harness strong and consistent wind resources in the north.
- Expected to produce enough electricity to power 40,000 homes.
4. Hellisheiði Carbon Capture and Storage Project:
- Location: Hellisheiði Power Plant, Southwest Iceland
- Type: Geothermal with carbon capture
- Investment: €40 million (estimated)
- Capacity: Capture 4,000 tons of CO2 annually (initial phase)
- Status: Pilot project, ongoing research and development
- Specific Statistics:
- First-of-its-kind carbon capture project at a geothermal power plant in Europe.
- Aims to demonstrate the feasibility of storing captured CO2 underground.
- Potential to significantly reduce the carbon footprint of geothermal energy.
5. Blue Lagoon Hydrogen Project:
- Location: Blue Lagoon geothermal spa, Southwest Iceland
- Type: Geothermal for hydrogen production
- Investment: €20 million (estimated)
- Capacity: Produce 1 ton of green hydrogen per day (initial phase)
- Status: Early development stage
- Specific Statistics:
- Aims to produce clean hydrogen for transportation and industrial applications.
- Utilizes waste heat from the Blue Lagoon for hydrogen production.
- Could contribute to decarbonizing Iceland’s transportation sector.
Latest Iceland Renewable Energy Projects: Data Highlights
| Project Name | Location | Type | Investment (Million €) | Capacity | Status | Key Statistics |
|---|---|---|---|---|---|---|
| Reykjanesbaer Geothermal Expansion | Reykjanesbaer | Geothermal | 720 | 450 MW (anticipated) | Under construction (completion 2027) | Supplies clean energy to over 100,000 homes, utilizes innovative drilling, reduces CO2 emissions by 400,000 tons/year |
| Þjórsá II Hydropower Expansion | South Iceland | Hydropower | 200 | Increased by 165 MW | Completed in 2023 | Increased existing plant capacity by 15%, provides reliable renewable energy during peak demand, uses advanced turbines for efficiency |
| North Iceland Wind Farm (planned) | Öræfajökull area | Wind | 75 (estimated) | 100 MW (planned) | Early development | Could become largest wind farm in Iceland, harnesses strong wind resources, powers 40,000 homes |
| Hellisheiði Carbon Capture & Storage (pilot) | Hellisheiði Power Plant | Geothermal with carbon capture | 40 (estimated) | Capture 4,000 tons CO2/year (initial) | Ongoing research & development | First-of-its-kind in Europe, demonstrates feasibility of underground CO2 storage, reduces geothermal carbon footprint |
| Blue Lagoon Hydrogen (early development) | Blue Lagoon geothermal spa | Geothermal for hydrogen production | 20 (estimated) | 1 ton green hydrogen/day (initial) | Early development | Aims to produce clean hydrogen for transportation & industry, utilizes waste heat for production, decarbonizes Iceland’s transportation sector |
Note: Investment figures are estimates based on available information. Capacity figures refer to electricity generation (MW) for power plants and hydrogen production (ton/day) for the hydrogen project.
Iceland’s Latest Renewable Energy Technology
While the previous overview provided a general picture, let’s delve into specific technologies with concrete data:
Hydropower:
- Pumped-storage technology:
- Blúðalón Pumped Storage Project: Capacity of 300 MW, planned completion in 2025, potential for significant grid energy storage and stability.
- Turbine improvements:
- Focus on high-efficiency Kaplan turbines like those used in Kárahnjúkar, maximizing energy extraction at various water flow rates.
Geothermal:
- Enhanced Geothermal Systems (EGS):
- Nesjavellir EGS pilot project: Injecting water into underground rock formations to create artificial geothermal reservoirs, aiming for 45 MW additional capacity.
- High-temperature drilling:
- Utilizing Iceland Deep Drilling Project (IDDP) technology, reaching depths exceeding 4.5 km for accessing supercritical geothermal fluids (up to 450°C).
Wind Power:
- Small wind turbines:
- Exploring options like the 2.3 MW ReWind vertical axis wind turbine, suitable for harsh environments and providing distributed energy generation.
- Floating wind farms:
- Feasibility studies underway for utilizing floating offshore wind farms in deeper waters with stronger wind resources.
Hydrogen:
- Electrolyzer technology:
- Implementing PEM electrolyzers at the Svartsengi Power Plant, converting renewable electricity into green hydrogen for transportation and industrial use.
- Hydrogen pipelines:
- Planning hydrogen pipelines to connect production and consumption centers, enabling wider hydrogen utilization across the country.
Additional Data:
- Smart grid technologies:
- Implementing AI-powered grid management systems for optimizing energy distribution and integrating diverse renewable sources.
- Energy storage advancements:
- Exploring various battery storage solutions, including pumped hydro and lithium-ion batteries, for grid flexibility and renewable energy integration.
Challenges and the Road Ahead
Despite its achievements, Iceland faces challenges. Expanding geothermal capacity requires careful consideration of environmental impact. Balancing hydropower development with ecological concerns is an ongoing conversation. The island nation also aims to reduce reliance on fossil fuels for transportation, further solidifying its clean energy commitment.
The future holds exciting possibilities. Wind power and hydrogen integration are being explored, promising to diversify the energy mix. Additionally, Iceland is exporting its expertise, collaborating with other countries to share its renewable energy knowledge and technology. This knowledge-sharing paves the way for a more sustainable future, not just for Iceland, but for the entire planet.
Iceland’s renewable energy landscape serves as a powerful testament to the potential of a sustainable future. By harnessing its unique natural resources and embracing innovation, this small island nation has become a global leader in clean energy. While challenges remain, Iceland’s journey offers valuable lessons for countries around the world striving towards a cleaner and more sustainable future. Its story is a tapestry woven with threads of geothermal heat, cascading hydropower, and unwavering commitment, inspiring us all to create a brighter tomorrow.
https://www.exaputra.com/2024/02/iceland-renewable-energy-lansdcape.html
Renewable Energy
Omterra Rebrand, Goldwind Warns on Turbine Size
Weather Guard Lightning Tech

Omterra Rebrand, Goldwind Warns on Turbine Size
Siemens Gamesa rebrands as Omterra, Goldwind questions ever-bigger turbines, and MIT revisits the century-old Betz limit.
Sign up now for Uptime Tech News, our weekly newsletter on all things wind technology. This episode is sponsored by Weather Guard Lightning Tech. Learn more about Weather Guard’s StrikeTape Wind Turbine LPS retrofit. Follow the show on YouTube, Linkedin and visit Weather Guard on the web. And subscribe to Rosemary’s “Engineering with Rosie” YouTube channel here. Have a question we can answer on the show? Email us!
The Uptime Wind Energy podcast, brought to you by StrikeTape. Protecting thousands of wind turbines from lightning damage worldwide. Visit striketape.com. And now your hosts
Allen Hall: Welcome to the Uptime Wind Energy Podcast. I’m your host, Allen Hall, and I’m here with Rosemary Barnes, who is recovering from a very serious illness, Matthew Stead, who has been healthy pretty much all the Australian winter, and Yolanda Padron in sunny, hot Austin, Texas. Welcome, Rosemary
Rosemary Barnes: Thank you. I am recovering from man flu, and I say man flu because it’s just a cold, but I’m complaining a lot about it.
Allen Hall: there’s gonna be a new name for Siemens Gamesa. So it was Siemens and then Gamesa’s a separate company. They merged. Siemens Energy, uh, broke off from Siemens AG. So [00:01:00] that’s a very well-known name, Siemens. It’s– Everybody knows Siemens at this point around the world.
And the, the one family had, as a company, had s- label on everything, right? So it’s, uh, Werner von Siemens started it 150 years ago. It’s been a long time since Siemens was started, but it’s everywhere. It’s on turbines, transformers, and power plants around the world, and now they’re changing their name, right?
So when Siemens Energy broke off from Siemens AG, they, they had a limited time they could use that name, so they have rebranding themselves or are about to rebrand themselves, and I wanna pronounce this right, Omterra. O-M-T-E-R-R-A. Now, we did a little research on this, and I think it’s Latin for all of the world.
It’s kind of a conjoined, uh, set of words, Latin words, kind of a, a schmear in a sense. So, uh, so the company that, you [00:02:00] know, that spun off in w- roughly 2020, if I remember this right, Matthew, does that sound right? It was roughly 2020 when Siemens Energy was established on its own. Uh, they’re gonna be changing their name to Omterra.
So instead of seeing, seeing Siemens Gamesa publications or Siemens Gamesa wind turbines, I guess they’re gonna have this new name, Omterra. What do we all think?
Matthew Stead: I think it’s great. I think, and if you go back to, you know, GE Vernova, um, I, I thought Vernova was a bit weird for a while, but now it just rolls off the tongue and easy. It just makes so much sense. Um, so I’m, I’m, I’m for it. I, I like it. I’ve already… You know, can already say it. It took a lot longer to say Vernova than it’s taking to say
Terra.
Rosemary Barnes: I think that it– But it’s not Vernova, it’s GE Vernova, right? So everyone knows what it is. Whereas my understanding is it’s not Siemens Omtera, it’s just Omtera, which makes it sound like a new budget kind of [00:03:00] brandless, history-less, uh, company. So that’s… Yeah, I’m no
branding expert, but I think that, uh, like they, they must have not been able to use the word Siemens at all, um, because otherwise you surely would, because it has a very…
Outside of, you know, their blade issues and bearing issues of a couple of years ago, they do have a, like a solid engineering reputation across many fields, so you wouldn’t probably intentionally divorce yourself entirely from that. So, um, yeah, I, I think it will take some getting used to for me
Matthew Stead: but everyone remembers. I mean, it’s not like– The people in the wind industry know their heritage, they know their history, so I don’t think it matters. I mean, you know, you know, they, they purchase the Senvion, you know, technologies or, you know, licenses in Europe. You know, y- y- you don’t forget these things, so I don’t think it matters.
I think it’s just a, it’s a color, it’s a, it’s a label
Yolanda Padron: I think it’ll be fine. I just think that there will be a little [00:04:00] bit of confusion down the line as with everything, right? Like I’ve, I’ve been on the side of conversations where I have to explain like Siemens versus like SGRE on paper and it’s like, oh, it’s– this is why th- there was that paper trail, uh, because people would think it was an absolutely different thing.
Um, so I, I can totally see those conversations coming, coming to play in the future where someone thinks that Ontier is a completely different entity that maybe they changed OEMs or something, um, for a site. But nothing a little history lesson won’t fix, I guess.
Matthew Stead: You just want people talking about you
Rosemary Barnes: Name change every year
Allen Hall: Change your name every year. Well, that’s, that’s one way to approach it. I w- always wonder what the boardroom looks like and sounds like when this discussion is going on, because Siemens, Siemens Energy is a big company, and there had to be outsourcing of this to probably several marketing firms, mostly [00:05:00] in Germany, I’m guessing.
And they came back with a bunch of pitches, and eventually they picked one. But boardrooms are probably not the place to pick a name. And I always think like, “Oh, you just had such a opportunity to do something really cool or really impressive.”
Allen Hall: Well, we’ll see how it goes with Omterra. The, it’s gonna be, I’m sure, a huge marketing effort, and you’ll probably see commercials for it during the Super Bowl.
Developers are [00:06:00] eyeing Britain’s next big renewables auction and have been waiting to learn the rules and most importantly, the price. Well, this week the UK government delivered both. It confirmed a package of changes to the CFD scheme ahead of allocation round eight, aimed at simplifying the process and keeping good projects from being tripped up by some paperwork.
So AR7 was super successful, and they’re hopefully gonna have a, a great allocation round eight. Uh, unchanged from last round, here are some pieces to it. AR7 brought in 15 gigawatts of, of new capacity, uh, well below the ceilings, and the government is betting that that’s stability from AR7’s gonna exist for AR8, so they’re keeping the pricing limits the same.
And let me give you some of the numbers here. So everything’s in 2024 prices, just so we have a baseline here. It, 113 pounds per megawatt hour [00:07:00] for fixed bottom offshore wind, 271 pounds for floating offshore wind. That’s, uh, pounds per megawatt. And then 92 pounds per megawatt for onshore wind, and s- 75 pounds per megawatt for solar. So 271 pounds per megawatt hour in 2044 dollars is, you know, you’re probably talking, what, 290 pounds per megawatt hour. That’s a really good strike price or ceiling to allow, uh, some more floating wind into the UK waters
Rosemary Barnes: Yeah. Well, the UK have this newly signed agreement with Japan, right, to, to progress development of that technology. I feel like I, I haven’t looked up any numbers to back this up, but I feel like the gap between fixed bottom and floating is narrowing. It’s barely more than double now, which, um, yeah, I think is not that bad considering how little development there has been for floating offshore wind compared to fixed bottom.
So [00:08:00] yeah, I think that it is an interesting technology to develop. I, I know with the, um, auction rounds and ’cause it’s a government thing, it’s easy to think, “Oh, why are you spending any money on anything other than the cheapest one?” Because y- you know, like, it, it feels weird that the government would play, you know, when they’re purchasing power for their grid, that they would do any more than trying to just get, you know, bulk power at the cheapest price possible whilst ensuring, you know, reliability.
Um, but in the previous or the previous, the one– last one or the one before that, they had quite a few tidal projects announced that certainly, you know, an expensive and not mature technology. But I think that you can’t say the same thing about floating offshore wind. I think that it is on a, like a good, a good development trajectory, and there are certainly places on Earth where floating offshore is one of the most appealing technologies.
You know, if you think of through to 2030s, 2040s, there’s plenty of places where, um, you know, slightly higher [00:09:00] price paid for floating offshore wind will still be worth it because they have so few other options available. So it makes sense as an industry to in- invest in capabilities there.
Matthew Stead: think it’s a really interesting method. It seems to be really successful, the contract for di-difference approach. So, um, I’m, I’m surprised that it’s not adopted more widely, um, in other locations,
Rosemary Barnes: it is around a bit.
I would like to see it, like, in, in Australia, we are, we are developing some new wind projects, but not as fast as we need to, to, you know, hit our upcoming targets. And I think, like, while the government is doing some things to help move or help incentivize developers, it’s not working that well, and maybe CFD would be a, you know, a bit of a better way to, like, just actually guarantee that these projects are gonna go ahead.
Allen Hall: Australia has a shipping problem. there’s been a concern at state-owned transport hubs are becoming less supportive of [00:10:00] wind energy projects with ACEN Renewables saying that they will now have to truck a large transformer from a wind project or for a wind project in northern New South Wales from the Port of Adelaide.
That’s not necessarily close. And h- they also said that the Port of Brisbane has refused to accept passage of some big transformers for a solar farm. also there’s some, uh, something about blades not being able to be accepted in certain ports. Like some of the, uh, Australian state-managed or state-owned ports are not accepting renewables.
Rosemary Barnes: I think
also that blades in Queensland can only be transported to site like one per day with a full police escort or something. It’s wild to
me ’cause, you know, like I lived in, in Denmark for so long and there were blades going up and down just the normal highway every single day, multiple like, uh, and three– they would go in sets of threes for obvious reasons.
Um, yeah, but the, the, the [00:11:00] Queensland government changed like a, a year ago or, or so, and it changed to a very anti-renewables government and they just threw all of the state’s renewable plans in the bin,
Allen Hall: such a recent change that when they, at least the news articles I’ve seen about it, I’ve only seen a handful, that they have, um, like last year some big transformers, like really difficult to move items have come through those ports and they’re just not letting them through now. How does that work?
If you have a, a, a legal right to build a wind farm or a solar farm or, or substation or whatever’s going on there, how do they reconcile not allowing those components to come through a port? In what world does that make sense?
Matthew Stead: I mean, most of the ports are– yeah, most of the ports are privatized, so it’s up to the individual commercial entity that’s running the port, I would, I would imagine. So it’s beyond the control of the government, would be my first guess.
Yolanda Padron: it seems like it’s an, a federal sort of thing that would give permits.
Matthew Stead: No, I mean, I’ve done a bit of work in the Port of Melbourne and, [00:12:00] um, it’s facilitated by the government, uh, state government, not federal, and but the ports are largely privatized.
Rosemary Barnes: I just pulled up an article and it says that it’s state-owned transport hubs are becoming
less supportive of wind energy projects. Um, yeah, and that’s the reason for why they’ll have to get that transformer in northern New South Wales, so very close to Queensland. They have to go from Adelaide, where you live, Matt, all the way through South Australia, maybe Victoria, New South Wales, and then, yeah, up to nearly the border.
Allen Hall: Is that just a temporary blip that the next election cycle it’ll revert back or is this something that’s more long term?
Rosemary Barnes: uh, it’s not obvious that it’s gonna flip straight back, that’s for sure
Allen Hall: [00:13:00] for years, the race in wind has run mostly in one direction: bigger and bigger blades, bigger towers, bigger machines.
And now a chief engineer f- at one of China’s largest turbine makers says it’s time to pump the brakes. Bo Juul Petersen, uh, Goldwind’s chief engineer in Denmark, argues that scaling turbines up no longer makes economic sense. So it’s not an engineering question, it’s an economic question. His reasoning rests on a simple rule of geometry, the square cube r- law, which says that as a turbine grows, its materials and costs climb faster than the rotor area that earns the revenue.
Past a certain point, he says, bigger simply costs more than it makes. Have we crossed that threshold yet? Is 20 megawatts that, [00:14:00] uh, pivot point where it doesn’t make any more sense to make a larger turbine?
Matthew Stead: didn’t we have problems when we went from three to six?
Allen Hall: One to two.
Matthew Stead: I, I, I think, uh, I think it’s good that someone’s actually coming out and saying this
Yolanda Padron: Whoa, whoa, whoa. Rosie’s on the podcast.
Rosemary Barnes: yeah, ex-excuse me, this is one of my topics of obsession that I constantly carry on about. I made a whole, a whole video about it with, um, equations to back up my opinions about scaling, um, and a very nifty tug of war metaphor between economic factors that favor big wind turbines and economic fav- factors that favor small ones.
And I think that we’re always a little bit ahead of, of what the right, the right balance is between those. So, you know, the benefits from having bigger turbines are that, um, you have fewer electrical connections, for offshore especially, that means less subsea cables and, um, yeah, just like much faster Faster construction of all that, you [00:15:00] know, less, uh, substructures and less, less of everything to install, less of everything to maintain as well.
You know, it doesn’t take so much longer to get up and do your annual maintenance checks of a big turbine compared to a small one. Like, it takes longer, but not, not that much longer. Um, but then all of the structural factors favor smaller turbines over bigger ones. blades especially, as they get longer, you get so many more problems in O&M, but they don’t show up on the developer’s spreadsheet, you know. The spreadsheet that you’re using to decide, um, your f- your final investment decision, it, it doesn’t, it doesn’t know that you’re gonna have a whole bunch of blade issues.
It doesn’t wanna know and so I think that that’s one factor that has pushed us past the economic point of where wind turbine size should be. And I think the other thing is prestige. I know that when I worked at LM, you know, we had the longest blade in the world.
It was 88 meters, was our first, um, world record that we set while I was working there. They’d had many before that. We had– They [00:16:00] had a, like, one-to-one scale printout of it that they took to WindEurope or WindHamburg, um, that everyone stood in front of, and then they lost it to somebody, and then they got it back again with the blade for the Halieade-X.
And we all know how well that went to, you know, have the world’s longest blade. Y- you know, it wasn’t so easy to make it, turned out. It’s very easy to announce and not so easy to make, um, with reliable quality. And now we’ve got all these Chinese companies, especially MingYang, is constantly announcing the world’s biggest something.
Um, don’t sell so many of them, but it’s not the point, isn’t to sell them, it’s to have the prestige of making the world’s biggest something.
Allen Hall: Yeah, what would be the technology breakthrough that would allow it to be more stable at a 20 or 25 megawatt? Because right now I’m, I’m seeing 1% improvement here and there, not 5%, 10%.
Rosemary Barnes: Yeah, I mean, 1% improvement will eventually add up to what, what you need. Maybe it’s in
20 years’ time, not 10 years’ time. But y- you know, like you can imagine anything. maybe [00:17:00] they start somehow, like aero and automotive manufacturing technologies get cheap enough that we can start making wind turbine blades with all prepregs instead of y- you know, um, you know, dry fabric and infusion.
For example, maybe 3D printing gets cheap enough that you can make your whole, whole blade from an additive process. Like a- anything like that. But it can also be other things like maybe the cost of subsea cables in- increases like a whole lot, and then if, you know, like things on one side getting more expensive can make it more worthwhile to save hard problems somewhere else. So that’s why I say it’s like a, it’s a, a ve- it’s a multivariable optimization problem that changes every time you have a…
Like for every project to project from year to year, it’s always gonna be slightly different. So I don’t think it’s wise to definitively say 20 megawatts is the threshold that we should never cross. Like I, I don’t agree with that.
Allen Hall: It’s one of those arguments, I think, about [00:18:00] any sort of technology about where the endpoint is. There’s too many variables to predict it. I always point to aviation in which older airplanes will hang around and hang around and hang around until the fuel price goes up enough where it doesn’t make sense to operate them.
So they will fly an airplane un-until they can no longer structurally do it. But if the price of oil shoots up and the price of aviation fuel bumps up, those airplanes get parked, and then they’re buying the new airplane with a more efficient engine. It’s a similar thing, I think. There’s just– You can’t tell where the technology’s gonna go or what the economic impacts of any part of that business will force you to do something different.
So it’s gonna be higher than 20 megawatts, guarantee you that.
Yolanda Padron: Well, it’s one of those things too, right? Where if we’re repeating the, the same blade type and we’re getting smarter about operating that same blade type, then the economic cost goes down, [00:19:00] right? Like, eventually. ‘Cause then you’re not just experimenting on every new thing or having to take all of the, the funding into tr- specializing techs or getting very specialized techs onto your site and finding a new– kind of the wheel every so often. [00:20:00] So speaking of larger wind turbines, evidently we’ve been doing this all wrong, that we’ve had the calculations for the, uh, Betz limit has been off, and, uh, a group of MIT engineers, I guess, uh, have, have made a breakthrough.
Allen Hall: So basically every wind turbine that is spinning today is based on some fundamentals, uh, math, empirical data in, in some level, but on formulas that have led us to design the wind turbines and that core formula called the momentum theory. And if you hear blade designers who hang around blade designers, which I don’t necessarily recommend, but if you do hang around blade designers, they, they’ll say the momentum theory, momentum theory, like, “Yeah, yeah, yeah, yeah, I got it.”
It, it, the– MIT is saying it breaks down exactly at the operating point where modern turbines try to live. Um, so for a century the fix [00:21:00] was a patchwork of corrections and useful, but with no real theory behind them. Now, a team at MIT said it has rebuilt the math from first principles, creating what they call a unified momentum model. It even nudges at the famous Betz limit, the century-old ceiling on how much energy a rotor can capture, and it bumps it up by a few percentage points, and that would be the first uptick to the Betz limit in over 100 years. All right, Rosemary, as our official Betz limit expert, does this make any sense?
Have the MIT folk something new?
Rosemary Barnes: a wind turbine blade, its aerodynamics are just the same aerodynamics as what keeps an airplane in the sky, right? It’s, it’s all the… It’s just an airfoil. It’s just facing a wind speed, um, you know, a local wind speed. It’s complicated by the fact that [00:22:00] a wind turbine blade is also rotating, so the wind speed is different along the whole span, and that’s, uh– and so is the flow angle, and that’s why blades are twisted and tapered.
Um, but you know, essentially when you wanna figure out how much energy, uh, a wind turbine is gonna generate or you wanna design the blade so that it optimizes that amount, you’re just slicing it up into a whole bunch of little bits of 2D flow, exactly the same as an, an airplane. So if it doesn’t work for wind turbines, then it shouldn’t work for airplanes either.
So that’s one fundamental thing. And also at Betz limit, it’s not like it’s not driving design. It’s more like if you, if your design exceeds the Betz limit for a, um, a horizontal axis wind turbine, then you– it’s like a sanity check that you’ve done something wrong. Uh, that’s, that’s what I would say you would mostly use it for.
Um, but what I don’t understand, and maybe Alan, presumably you did read the, read the research or at least the press [00:23:00] release. Are they arguing that y- um, like the tips of a wind turbine blade are rotating, are moving fast enough that it’s approaching transonic flow? ‘
Allen Hall: Yeah, it’s a rental number thing.
Rosemary Barnes: there’s different types of aerodynamic equations depending on how fast the, airfoil’s moving.
And my understanding is transonic is like 0.8 Mach, um, 0.8, which is 274 meters a second, which is more than double what, um, the fastest tip speeds are currently. So I would think that you’re not quite approaching that yet. They’re– It’s not like a cutoff that, you know, all of a sudden at that exact, exact speed the air behaves totally differently.
But, um, y- yeah, like it seems far enough away that it’s not that relevant. But is that what they’re getting
at or, or is it something different?
Allen Hall: I like doing sanity checks when I read things from MIT. So what blade [00:24:00] manufacturers and/or wind turbine OEM has designed a set of blades and go, “Oh my gosh, we’re getting more energy than what we calculated,” and not thought to themselves, “Huh, maybe we should look into that”? It’s, it’s, it’s hilarious almost that all the engineers working in wind for 100 years wouldn’t have stumbled across this, where the turbine produces more power than the Betz limit would say it would.
Y-
Rosemary Barnes: yeah, as many people have commented on, you know, any one of my YouTube videos about wind turbine aerodynamics, if they would just put more blades in there, then, you know, less wind would just fly through without ever being, um, y- without ever hitting a blade.
So, you know, like obviously wind turbine, uh, blade aerodynamics people are stupid because if they weren’t, then they would see that you just put more blades in and you get more, twice as many blades, twice as much energy and w- What about three times as many blades? Three times as much energy.
And I [00:25:00] didn’t even go to MIT and that’s just, you know, like just
brilliant
Allen Hall: Obvious
Rosemary Barnes: off the top of my head here.
Allen Hall: it’s sort of ludicrous, honestly, and I see these things in wind occasionally. I see it more often in other areas, particularly aerospace, where, where you just have to go, “What are we spending time on?
Really? We’re working on this? On a fraction of a percentage point that we may have a slight error in?” Like, it does not matter. What are you gonna do with that?
Rosemary Barnes: there’s two issues. One is that the person writing up the press release is not the person that did the research, and they will always blow it up to be much more groundbreaking than the engineers who actually worked on it probably think it is.
So, the, like, I think you have to, like, reserve your criticism of the work and try and criticize the press release. And then the second error that I commonly see is that people don’t have an un- good understanding of a status quo. So they think that they have smashed the status quo, but really it’s more to do with them not understanding the status quo than it is through [00:26:00] some legitimate, like, massive im- improvement.
So it could well be that this is all very good and correct work, just with limited practical implication. That would be my most expected, um, from this.
Allen Hall: Rosemary, how many times a month do you get queries about wind turbine improvements that are just physically impossible?
Rosemary Barnes: Oh, I mean, if I read all of the comments on my YouTube channel, then probably quite, quite frequently. But, um, yeah, the most common one is just people thinking you can just add more blades and get a proportional increase in, um, in energy, you won’t get more power from adding more blades if that’s the only thing that you do, because in a well-designed wind turbine, which modern ones are, every, e- every air molecule that goes through the rotor disc is gonna interact with the, um, with, with a blade.
That’s how it’s, it’s designed. The blades are moving really fast, and so every molecule doesn’t get hit, but, you know, every, every molecule is affected and has some energy extracted from it. Um, then the other thing is people [00:27:00]who think if you reduce drag, like if you can come up with a lower drag airfoil or a higher lift airfoil, then you think, they think that that relates to more energy proportionally.
So they’re like, “Oh, this airfoil has twice as much lift, so it’s gonna be twice as much power.” It’s like, actually, you know, wind turbine designers are aware of the full range of, you know, airfoils that are available, including high lift ones, and they’re not using it because, you know, the same reason the airplane wings aren’t just, you know, like the highest, highest lift airfoil.
Y- you know, it’s more of a lift to drag ratio type thing, and that’s true for wind turbine blades as well, but also there’s structural considerations probably more so in a wind turbine blade than there are in, um, in airplane wings. So, you know, there’s some sacrifices made for that. Um, yeah, but those are the two, two main families of, of mistakes that I’d say people make.
Allen Hall: So
Rosemary Barnes: Matt
Allen Hall: up to his hand up for
to MIT media representatives
Matthew Stead: uh,
I had a couple of sort of quick and simple points. The first of all, uh, I’m actually a graduate of [00:28:00] MIT. I’ve graduated from, uh, from a course at MIT. Um, so that’s the first thing. Um, not in engineering. Um, the next one is like, so what? I mean, we can’t even reliably measure, um, you know, AEP the other one is all models are wrong.
Yolanda Padron: But not just wind
Matthew Stead: the world is not perfect. All models are wrong, so trying to improve something that’s wrong, you know, might help a little bit, but does it really matter?
Rosemary Barnes: But it is also the job of academics to improve these models. So there’s nothing wrong with MIT spending a lot of energy to, um, you know, improve on an incorrect model with another incorrect model. Uh, if it’s more useful, that’s great, and even if it’s not, like isn’t that the job of
Matthew Stead: yeah.
Matthew Stead: you should add to where it has the most impact on humanity. You should actually put the effort into areas that have a greater impact on pushing the boundary. You know, pushing small boundaries does not help the world
Allen Hall: Matthew is an MIT graduate, [00:29:00] the one thing that Matthew brings to the table is real-world experience. And that if you shelter yourself inside a laboratory at MIT, and I understand why you would do that, because I’m sure it’s a very pleasant place to work, and there’s a lot of benefits to that.
However, the way that MIT used to work back in the day, and not everything was roses then, but oh, okay, y- that people had industry experience. They had a knowledge of what was going on on the ground, and they were engineers, and they realized that formulas and reality don’t always align. And maybe we lost that somewhere in the ’80s and, or ’90s, but it does continue to be a problem, where back to Matthew’s point, if you’re going to use that amount of brain energy, put it to something that can help the world.
This isn’t necessarily helping the world That wraps up another episode of the Uptime: Wind Energy podcast. If today’s discussion sparked any questions or ideas, and I’m sure that it will, we’d love to hear from [00:30:00] you. Reach out to us on LinkedIn, and don’t forget to subscribe so you never miss an episode.
So for Yolonda, Rosemary, and Matthew, I’m Allen Hall, and we’ll see you here next week on the Uptime: Wind Energy podcast.
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