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- Renewable Insights - 48th Edition
Renewable Insights - 48th Edition
Renewable Insights: Connecting You to the Pulse of Clean Energy Developments

Hi, Watt Wizards!
Welcome to the 48th edition of “Renewable Insights ”, your compass in the ever-evolving world of sustainable energy.
What can we expect in this edition?
🌍 German Offshore Wind Auction: Developers Pay to Builds
🌪️ AI & Data Centres: Powering a New Era in Energy
🔋 Vestas Blade Breaks at Swedish Wind Farm
🌞 Bermuda Launches Bid for Its First Offshore Wind Farm
🔬 World’s Largest Sand Battery Goes Live in Finland
Read previous editions here: https://muxenergy.beehiiv.com/
What’s Trending?
1. ⚡ 🇩🇪 German Offshore Wind Auction: Developers Pay to Build
Germany’s latest offshore wind auction saw developers offer to pay the government for the right to build wind farms—rather than asking for subsidies. This is called “negative bidding.”
Why is this important?
It shows strong confidence in offshore wind’s future in Germany.
Developers will need to make their money back through selling electricity, which could affect prices and project costs.
There’s growing debate about whether this trend is good for the long-term health of the market.
Germany’s approach is bold, but it raises questions about future profits and the sustainability of such competitive bidding.
2. ⚡ AI & Data Centres: Powering a New Era in Energy
Artificial intelligence (AI) is set to revolutionize the energy sector—but it comes with a surge in electricity demand, especially from data centres, according to a new IEA report.
Key Insights
Data Centre Boom: Global electricity demand from data centres is expected to more than double by 2030, reaching levels higher than Japan’s entire power use today.
AI’s Impact: AI-driven data centres will be the main growth driver, with their energy use forecast to quadruple by 2030.
Regional Highlights: In the US and Japan, data centres will account for nearly half (or more) of all electricity demand growth by 2030.
🌱 Opportunities & Challenges
Opportunities:
AI can help cut costs, boost competitiveness, and reduce emissions across the energy sector.
It’s accelerating innovation in batteries, solar, and energy system management.
AI is becoming a key tool for defending energy utilities against cyberattacks.
Challenges:
The rapid rise in electricity demand could strain grids and energy security if infrastructure doesn’t keep up.
Data centre growth will increase demand for critical minerals.
Emissions may rise, but AI-enabled efficiency could help offset this.
🏗️ What Needs to Happen?
Invest in Infrastructure: More electricity generation and grid upgrades are needed—fast.
Boost Efficiency: Smarter, more flexible data centres will be crucial.
Work Together: Policymakers, tech leaders, and the energy industry must collaborate to harness AI’s full potential.
3. ⚡ Why Are Wind Farm Developers Pulling Out at the Last Minute?
The offshore wind industry is facing major headwinds, with several developers withdrawing from projects just before construction.
🚧 Rising Costs & Supply Chain Strains
Material Prices: Steel, copper, and aluminium costs have doubled or tripled since 2020, pushing up turbine prices and squeezing profits.
Supply Shortages: High demand for specialized cabling and rare earth metals—most of which are controlled by China has led to bottlenecks and even project cancellations.
🚢 Vessel Shortages
There aren’t enough specialized ships to install turbines and lay cables. This shortage is expected to worsen, causing costly delays and risking the loss of government subsidies if projects miss deadlines.
💸 Profitability Pressures
Even flagship projects like Dogger Bank are struggling to remain profitable. With renewable projects still less lucrative than oil and gas, investors are hesitant.
🏗️ Planning & Contract Risks
Lengthy and uncertain planning processes add more risk. While some governments are trying to speed up approvals, new rules can introduce fresh uncertainties if projects are later denied permission.
Offshore wind remains crucial for clean energy, but developers are hitting pause due to soaring costs, supply chain issues, and planning risks. The industry needs solutions fast to keep the energy transition on track.
Energy efficiency is emerging as the unsung hero in the quest for secure, affordable, and sustainable energy. According to leading experts and EU policymakers, the biggest gains might be hiding in plain sight right in our homes, offices, and factories.
Why Focus on Efficiency?
Big Results Already: Since 2000, efficiency improvements have saved as much energy as India uses in a year and made industries 20% more productive per unit of energy.
Economic Boost: Smarter energy use means lower bills, more competitive businesses, and stronger job protection.
Climate & Security: Efficiency cuts emissions and reduces reliance on imported fossil fuels, making countries more resilient.
🌍 Where Are the Biggest Opportunities?
1. Air Conditioners
Most units are only half as efficient as they could be. Doubling their efficiency would slash electricity demand and emissions, especially as AC use grows worldwide.
2. Buildings
Speeding up retrofits and strengthening building codes can deliver huge savings. For example, efficient fridges in the EU now use 60% less energy than before.
3. Industry
Digital tools and AI can optimize processes, saving up to 8% more energy by 2035.
🏛️ Policy & Progress
At COP28, nearly 200 countries pledged to double global energy efficiency progress by 2030.
The EU is rolling out new financing and partnerships to unlock private investment and expand energy-saving projects.
Energy efficiency is the fastest, most reliable tool for cutting emissions, saving money, and boosting energy security. It’s time to put it at the heart of every energy policy.
5. Vestas Blade Breaks at Swedish Wind Farm: Incident Overview
A Vestas wind turbine blade broke off at a Swedish wind farm, causing a "loud bang" that drew immediate attention from local residents and operators.
The incident occurred at a 213MW wind farm owned by the British investment trust TRIG and serviced by Renewable Energy Systems. The site features 66 Vestas V112 turbines, and the event was reported on June 13, 2025.
Key Details
Location: Swedish wind farm (213MW, owned by TRIG)
Turbine Model: Vestas V112
Incident: A turbine blade detached with a loud noise
Operator Response: The affected turbine was immediately shut down for investigation and safety checks.
Industry Context
Blade failures, while rare, are among the most serious incidents for wind farms due to the risk of debris and safety hazards. Vestas, a leading global turbine manufacturer, has experienced similar incidents in the past, prompting ongoing reviews of blade design, manufacturing, and maintenance protocols.
Safety and Operational Implications
Risk Management: The incident highlights the need for robust inspection and maintenance regimes to detect early signs of blade stress or defects.
Community Impact: The loud noise and visible damage can cause concern among local residents and stakeholders, emphasizing the importance of transparent communication and swift response.
Industry Response: Operators and manufacturers typically conduct thorough investigations to determine root causes and implement corrective actions to prevent recurrence.
The broken blade at the Swedish wind farm highlights the need to keep improving wind turbine design, quality checks, and safety measures. As the wind industry expands, it's important to manage risks and respond quickly to problems to maintain public trust and safely grow renewable energy.
6. 🌬️ Offshore Wind Subsidies: Could They Push Developers Toward Chinese Turbines?
European wind developers are raising red flags: current offshore wind subsidy rules may soon force them to buy cheaper Chinese turbines for onshore projects, rather than supporting local or Western manufacturers.
Rising Costs: Building wind farms has become more expensive in Europe because materials like steel and copper cost more.
Cheaper Chinese Turbines: Chinese wind turbines for onshore projects are up to 30–50% cheaper than European or US models.
Subsidy Rules: European offshore wind subsidies reward the lowest-cost projects, so developers look for the cheapest turbines to keep profits up.
Easy Financing: Chinese manufacturers often offer better payment terms, like letting developers pay later.
Developer Strategy: Some companies use cheaper Chinese turbines for onshore projects to balance out the high costs of their offshore wind projects.
EU Concerns: European leaders worry about depending too much on Chinese technology and are investigating possible unfair trade practices.
Aspect | Details |
Cost Advantage | Chinese turbines up to 30 - 50% cheaper for onshore projects |
Financing | Deferred payment terms, strong supply chain |
Subsidy Influence | Offshore subsidies push developers toward lowest-cost solutions |
Developer Perspective | Cheaper turbines help balance project portfolios |
Policy Response | EU investigations, concerns over security and fair competition |
Developers are turning to Chinese turbines for cost savings, but this is raising questions about energy security and fair competition in Europe.
Project & Mergers
1 . 🌊 Bermuda Launches Bid for Its First Offshore Wind Farm
Bermuda is taking a big step toward a cleaner energy future! The island has officially started the search for developers to build its very first offshore wind farm—a move set to reduce its dependence on imported fossil fuels and boost renewable energy.
Project Highlights:
Location: About 9 km north of St. George’s Island, in steady winds and shallow waters.
Size & Scale: The project will start with 60 MW and could grow to 120 MW, using up to 17 turbines enough to supply roughly 30% of Bermuda’s electricity needs.
Timeline: Construction is planned to begin in 2028, with the wind farm expected online before 2030.
Technology: Modern three-blade turbines, each generating about 3.6 MW.
How the Process Works
Expression of Interest (EOI): Developers are invited to share their experience and ideas, including initial (non-binding) pricing.
Phased Rollout: The wind farm will be built in stages, allowing for growth and adaptation as Bermuda’s energy needs evolve.
This project marks a major milestone for Bermuda’s energy transition, promising cleaner power and greater energy security for the island.
Technology & Innovation
1. 🔋 World’s Largest Sand Battery Goes Live in Finland
Finland has just commissioned the world’s largest sand battery a ground breaking leap for renewable energy storage.
Capacity: 1 MW of power and 100 MWh of energy storage
How It Works: The battery stores excess renewable energy as heat in sand, which can be released later to supply energy when the sun isn’t shining or the wind isn’t blowing.
Why Sand? Sand is abundant, low-cost, and can retain heat for months, making it an ideal medium for long-term, large-scale energy storage.
Finland’s new sand battery is a major milestone for renewable energy, showing how creative solutions can help power a sustainable future.
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Key Takeaways
Germany’s latest offshore wind auction saw developers offer to pay the government for the right to build wind farms rather than asking for subsidies.
📈 A Vestas wind turbine blade broke off at a Swedish wind farm, causing a "loud bang" that drew immediate attention from local residents and operators.
Artificial intelligence (AI) is set to revolutionize the energy sector but it comes with a surge in electricity demand, especially from data centres.
🚀 Bermuda is moving towards cleaner energy! The island is now looking for developers to build its first offshore wind farm. This will help reduce its reliance on imported fossil fuels and increase the use of renewable energy.
💡🌞Finland has just commissioned the world’s largest sand battery a ground breaking leap for renewable energy storage.
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Thank you for staying informed with MUX Energy! Together, we’re shaping a greener future—one breakthrough at a time.
Warm regards,
The MUX Energy Team 🌱
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