Energy Digest

Daily Summaries & Key Takeaways of Power & Energy Updates
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Last Updated: December 26, 2025 at 06:00 PM
28
News & Articles
2
Research Papers
1

Carmaker uses repurposed EV batteries to help power factory in Australia

Summary

A Nissan Australia factory in Melbourne has installed a 100 kW rooftop solar array and a 120 kWh battery energy storage system featuring repurposed electric vehicle batteries to power its operations. The system, known as the "Nissan Node project," was developed by Relectrify in collaboration with the company. This innovative solution aims to reduce energy costs and increase the use of retired EV batteries.
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Key Takeaways

  • Nissan Australia has partnered with Relectrify to install a 120 kWh battery energy storage system featuring repurposed electric vehicle batteries, reducing waste and increasing the use of retired EV batteries.
  • The system combines cell-level control technology that increases battery cycle life and reduces energy storage costs, making it possible to repurpose high-quality end-of-life batteries from EVs.
  • The project aims to reduce energy costs for Nissan Australia's production facility in Melbourne and supply two new EV chargers as part of the initiative.
2

Nuclear Power Retains Great Potential in 2026

Summary

The article discusses the future of nuclear power in the US, citing strong momentum for expansion despite challenges. Technological advances and new agreements are expected to drive growth, while also addressing past issues such as delays and cost overruns. The goal is to make nuclear power a viable option for meeting increasing electricity demand.
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Key Takeaways

  • The US nuclear industry has been hampered by few civilian reactors being built in recent decades, leading to delays and cost overruns.
  • Advances in technology and new agreements are expected to drive growth in the nuclear sector, particularly with the development of small modular reactors (SMRs) that could bring economies of scale and standardization.
  • The article mentions the potential for commercially viable fusion power as a long-term goal, but notes that much progress still needs to be made before it can be achieved.
3

Charting The Changes That Will Lead To Renewable Energy Dominance In 2026

Summary

The article discusses the shift towards renewable energy globally, with countries rapidly transitioning to cleaner sources of power. In contrast, the US is facing criticism for its resistance to change and nostalgia for past energy policies. The article highlights the changes that will lead to renewable energy dominance by 2026.
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Key Takeaways

  • Renewable energy is gaining momentum worldwide, driven by technological advancements and declining costs.
  • Countries are rapidly transitioning away from fossil fuels, with many aiming to become carbon-neutral or achieve significant reductions in greenhouse gas emissions.
  • The US is lagging behind in its transition to renewable energy, with the article criticizing its resistance to change and reliance on outdated energy policies.
4

U.S. Hydropower Faces Prospects for Growth, Contraction in 2026

Summary

The US hydropower sector is at a crossroads, with demand for energy storage capacity driving proposals for new pumped storage hydropower (PSH) capacity, while conventional hydro projects are limited to small-scale and aging facilities face the prospect of relicensing. Hydroelectric power generation accounts for 5.9% of all US power generation and 27.4% of US renewable electricity generation. The industry faces a challenge in maintaining critical infrastructure as there are no new large-scale hydropower projects on the horizon.
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Key Takeaways

  • The demand for energy storage capacity is driving a surge in proposals for new pumped storage hydropower (PSH) capacity.
  • Many conventional hydro facilities in the US are aging, and operators must decide whether to pursue federal relicensing, which can be costly and time-consuming.
  • Hydroelectric power generation plays a critical role in providing dispatchable backup power to the grid, accounting for approximately 40% of US black-start capacity.
5

Hermetic Sealing Solutions for High-Performance Miniaturized Battery Systems

Summary

The article discusses the use of dual-seal epoxy adhesive methods for achieving reliable hermetic sealing in high-performance miniaturized battery systems. This method is designed to maximize energy density while preventing electrolyte leakage and moisture ingress, enabling microbatteries to operate at extreme temperatures and maintain long continuous performance. The technique has shown promising results with a 2mm breakthrough and proven materials.
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Key Takeaways

  • A dual-seal approach combining epoxy adhesives with gaskets is used to achieve optimal hermeticity in miniaturized battery systems.
  • The method has successfully demonstrated microbatteries operating at 120°C with 22-hour continuous performance, achieving a significant breakthrough in energy density and reliability.
  • Surface-area-to-volume optimization is key to maximizing energy density while maintaining high Wh/L and Wh/kg ratios, ensuring the longevity of the batteries.
6

Waaree targets Europe expansion under EU Net-Zero Industry Act

Summary

Waaree Energies, an Indian solar manufacturer, aims to expand its presence in Europe due to the European Union's Net-Zero Industry Act (NZIA), which sets stricter requirements for supply-chain resilience and traceability. The NZIA is creating new opportunities for non-Chinese manufacturers, particularly from India, to participate in European solar projects. Waaree believes its scale, bankability, and global manufacturing track record make it well-positioned to meet these tightening requirements.
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Key Takeaways

  • The EU's Net-Zero Industry Act (NZIA) is reshaping solar procurement and supply-chain requirements in Europe, creating new opportunities for non-Chinese manufacturers.
  • Waaree Energies, an Indian solar manufacturer, is expanding its presence in Europe due to the NZIA, which prioritizes supply-chain resilience, sustainability, and full traceability.
  • The company's scale, bankability, and multi-gigawatt manufacturing track record position it to meet European requirements on supply-chain resilience and traceability.
7

AI Issues Commence — New Tool, New Problems

Summary

The article discusses the emergence of new issues related to artificial intelligence (AI), despite its increasing use and presence in various fields. However, the exact nature of these issues is not specified in the provided text. Instead, it mentions that AI has previously been criticized for being wrong despite sounding authoritative.
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Key Takeaways

  • The article mentions that there are problems with AI, but does not specify what they are.
  • AI has previously been criticized for being wrong and sounding authoritative despite this.
  • The article appears to be discussing a new development or issue related to AI, but the details are not provided in the available text.
8

Podcast: Tesla’s mission is no longer ‘sustainable’, VW Buzz lives, and more

Summary

The Electrek Podcast discusses the latest news in sustainable transport and energy, including a shift in Tesla's mission from sustainability to a more realistic goal, and the revival of the VW Buzz electric vehicle.
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Key Takeaways

  • Tesla's mission is no longer focused solely on being "sustainable", indicating a revised approach to achieving environmental goals.
  • The Volkswagen Group has revived its plans for an electric version of the classic Buzz microbus, previously canceled due to lack of demand.
  • The podcast episode likely covers additional news and updates in the world of sustainable energy and transport, but specific details are not provided.
9

Honda buys out EV battery plant in the US for nearly $3B as it preps for an all-new lineup

Summary

Honda has agreed to buy its co-owned EV battery plant in Ohio from LG Energy Solutions for nearly $3 billion, as the company prepares for an all-new dedicated electric vehicle lineup.
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Key Takeaways

  • Honda is expanding its presence in the US EV market by acquiring its existing co-owned battery plant, indicating a significant investment in its future electric vehicle offerings.
  • The acquisition suggests that Honda plans to increase its production capacity and supply chain capabilities to meet growing demand for EVs, as it prepares for an all-new lineup of dedicated electric vehicles.
  • The deal marks a notable development in the automotive industry's transition to sustainable energy solutions, underscoring the importance of secure and reliable battery supply chains.
10

Affordability becomes a priority across the utility industry in 2025

Summary

The utility industry is prioritizing affordability in 2026, building on the momentum established in 2025. As the focus shifts to making energy more accessible and affordable for consumers, key factors such as cost savings from technology advancements and policy changes will play a crucial role. The article highlights the importance of addressing affordability concerns across the utility space.
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Key Takeaways

  • Cost savings from technology advancements are becoming increasingly important in reducing energy costs for consumers.
  • Policy changes and regulatory frameworks will likely be critical in shaping the narrative around affordability in the utility industry.
  • The growing emphasis on affordability may lead to increased focus on decentralized energy solutions, such as community solar programs, to make renewable energy more accessible.
11

Restart of Kashiwazaki-Kariwa reactors approved by regional assembly

Summary

The Niigata Prefectural Assembly has approved the restart of units 6 and 7 at the Kashiwazaki-Kariwa nuclear power plant, following a decision made by Governor Hideyo Hanazumi. This approval marks an important step in the process to resume electricity generation from these reactors. The decision is expected to have implications for Japan's energy mix and its efforts to reduce greenhouse gas emissions.
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Key Takeaways

  • The Kashiwazaki-Kariwa nuclear power plant, operated by Tokyo Electric Power Company, has units 6 and 7 that are set to be restarted after receiving approval from the Niigata Prefectural Assembly.
  • This decision is part of Governor Hideyo Hanazumi's efforts to promote nuclear energy in Japan as a key component of the country's energy mix.
  • The restart of these reactors could impact Japan's overall energy policy and its goals for reducing greenhouse gas emissions, particularly carbon dioxide.
12

Tesla has YouTube clips, CATL has bots on the ground — right now

Summary

The article discusses the recent developments in power and energy systems, specifically highlighting Tesla's robotic capabilities and CATL's introduction of humanoid robots for industrial use. Tesla is facing allegations of remote operation for its robots, while CATL has successfully implemented large-scale humanoid robots at their battery pack facility in China.
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Key Takeaways

  • CATL has successfully implemented the world's first large-scale implementation of humanoid robots at their Zhongzhou battery pack facility in China.
  • This move marks a significant step in industrial automation and could have implications for future manufacturing processes.
  • The article also mentions Tesla's recent YouTube clips showing its robotic capabilities, highlighting the ongoing competition between companies in the field.
13

China launches HTGR industrial alliance

Summary

China has launched an industrial alliance for the High-Temperature Gas-Cooled Reactor (HTGR) Modern Industrial Chain, which brings together over 60 organizations. This initiative aims to promote the development and commercialization of HTGR technology in China. The collaboration is expected to drive innovation and growth in the nuclear energy sector.
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Key Takeaways

  • Over 60 organizations are part of the High-Temperature Gas-Cooled Reactor Modern Industrial Chain Alliance, established by Chinergy, a subsidiary of China National Nuclear Corporation.
  • The alliance aims to promote the development and commercialization of HTGR technology in China, indicating a significant investment in nuclear energy research and development.
  • The collaboration is expected to drive innovation and growth in the nuclear energy sector, potentially leading to increased adoption and deployment of HTGR technology globally.
14

Elon Musk drops ‘sustainable’ from Tesla’s mission as he completes his villain arc

Summary

Elon Musk has dropped the word "sustainable" from Tesla's mission statement, rebranding it to simply "Amazing Abundance". This change marks a significant shift away from the company's environmental roots, which were once its guiding principle. The move is seen as a departure from Tesla's original focus on sustainable energy and practices.
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Key Takeaways

  • Elon Musk has removed the word "sustainable" from Tesla's mission statement, replacing it with "Amazing Abundance".
  • This change marks a significant shift away from Tesla's environmental roots and its long-held commitment to sustainable energy.
  • The move is seen as a departure from Tesla's original focus on sustainability and practices that were once central to the company's identity.
15

Clean energy is still winning. These 10 charts prove it.

Summary

The article discusses the progress of clean energy in the US, highlighting the ups and downs of the transition through various charts. It emphasizes that despite the challenges, clean energy is still advancing, and this trend is expected to continue into 2025. The article aims to provide visual evidence of the growth and momentum in the clean energy sector.
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Key Takeaways

  • Clean energy continues to gain ground in the US, with a focus on showcasing the positive trends through charts.
  • Despite fluctuations, the transition towards cleaner energy sources appears to be ongoing and progressing in various sectors, such as solar and wind power.
  • The article suggests that despite the ups and downs, clean energy is still winning, implying a overall trend of growth and advancement in the sector.
16

Massachusetts awards 1.3 GW in first large-scale energy storage tender

Summary

Massachusetts has awarded a total of 1.3 GW in large-scale energy storage projects, totaling 4 winners, as part of its first major procurement round to meet its goal of 5 GW of energy storage by 2030. The state aims to reach this target through the Section 83E energy storage solicitation. This move is expected to support clean energy development and defer significant costs for regional transmission upgrades.
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Key Takeaways

  • Massachusetts has selected four large-scale battery projects totaling 1.3 GW under its first major procurement round, as part of its goal to reach 5 GW of operational storage capacity by July 2030.
  • The winning projects are expected to support the development of clean energy and defer around $2.2 billion in regional transmission upgrades at a former Exxon oil terminal site.
  • This move is a significant step towards Massachusetts' transition to a more sustainable energy system, aligning with its broader goals for reducing carbon emissions and promoting renewable energy.
17

Sembcorp completes acquisition of 300 MW solar project in India

Summary

Sembcorp Industries has completed the acquisition of a 300 MW solar project in Rajasthan, India, adding to its renewable energy operations in the country. The company acquired the project through its wholly owned subsidiary Sembcorp Green Infra for approximately SGD 246 million. This acquisition brings Sembcorp's renewable energy capacity in India to over 7.6 GW.
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Key Takeaways

  • Sembcorp Industries has expanded its presence in the Indian solar market by acquiring a 300 MW grid-connected solar project in Rajasthan.
  • The company acquired the Fatehgarh solar project through its subsidiary Sembcorp Green Infra for approximately SGD 246 million ($191.6 million).
  • The acquisition brings Sembcorp's global renewables portfolio to 20.2 GW, with over 7.6 GW of installed and under-development capacity in India.
18

Michigan utilities awarded financial damages for work performed on pumped hydro plant

Summary

A jury has awarded financial damages to Consumers Energy and DTE Energy in their lawsuit against Toshiba for allegedly "defective" work on a pumped hydro plant upgrade. The verdict is related to the Michigan utilities' investment in a pumped hydro storage facility, which they claim was compromised due to Toshiba's subpar work. The outcome of the case highlights the importance of quality control in large-scale energy infrastructure projects.
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Key Takeaways

  • A jury has found Consumers Energy and DTE Energy liable for financial damages in their lawsuit against Toshiba for "defective" work on a pumped hydro plant upgrade.
  • The verdict is related to the Michigan utilities' investment in a pumped hydro storage facility, which they claim was compromised due to Toshiba's subpar work.
  • This case highlights the importance of quality control and proper construction practices in large-scale energy infrastructure projects to avoid costly rework or compensation claims.
19

California Records One of Its Single Largest Drops in Climate Pollution on Record

Summary

California has achieved one of its largest year-over-year emissions reductions on record, with a significant drop in climate pollution. This reduction is attributed to the peak of renewable energy production and a historic low in fossil fuel power generation. While still not meeting its 2030 climate goals, California continues to close the gap.
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Key Takeaways

  • California has achieved a year-over-year emissions reduction that is one of the largest on record.
  • The state's reliance on renewable energy and decline in fossil fuel power generation have contributed to this significant drop in climate pollution.
  • Despite not meeting its 2030 climate goals, California continues to make progress towards reducing greenhouse gas emissions.
20

MISO, Minn. Say Federal Funds for JTIQ in Play

Summary

The US Department of Energy's revocation of grants for several transmission projects, including MISO and SPP's Joint Targeted Interconnection Queue (JTIQ) portfolio, appears to have been reversed. The Minnesota Department of Commerce stated that the federal grant for JTIQ remains intact, despite initial reports suggesting it was canceled. The funding status has sparked some confusion, with MISO and the state Commerce Department claiming the funds are still in place.
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Key Takeaways

  • The US Department of Energy's revocation of grants for transmission projects appears to have been reversed, with the JTIQ portfolio's federal grant remaining intact.
  • The $464.5 million in federal funding for the JTIQ portfolio was initially listed as one of 321 grants canceled by DOE in early October, but it is now unclear whether this information was incorrect or misleading.
  • There appears to be a discrepancy between MISO and Minnesota's Commerce Department regarding the funding status of JTIQ, with neither party offering clear details on the possible reconsideration of the projects by DOE.
21

We’ve been lied to – electric bike motors CAN do regen, at least with this genius trick

Summary

The article discusses how a new e-bike motor design from CHARGE has discovered that nearly any e-bike hub motor can perform regenerative braking, despite the widespread misconception that this feature is not possible with traditional e-bike motors.
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Key Takeaways

  • Traditional e-bike motors were built without considering regenerative braking capabilities.
  • The new motor design by CHARGE enables regenerative braking on most e-bike hub motors, which could revolutionize the industry.
  • This discovery suggests that manufacturers have been building e-bikes with a " limitation" that is not actually present in their design.
22

MOD Christmas Sale offers rare 10% sitewide e-bike savings from $1,799, Anker SOLIX final Xmas flash sale, Segway F3 e-scooter $750, more

Summary

This article from Electrek highlights various holiday sales and deals on electric bicycles, e-scooters, power stations, and other green-related products. The MOD Bikes Christmas Sale offers a 10% discount on select products, including the MOD Groove SideCar 3 e-bike. Additionally, Anker's SOLIX flash sale is offering significant discounts on various products, while Segway's F3 Electric Scooter is available at a discounted price of $750.
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Key Takeaways

  • The MOD Bikes Christmas Sale offers a rare 10% sitewide discount from $1,799 on select e-bike models, including the second-ever discount on the new MOD Groove SideCar 3.
  • Anker's SOLIX final Xmas flash sale is offering up to $5,299 off various products, starting from as low as $699 for a power station.
  • Segway's F3 Electric Scooter is available at a discounted price of $750, making it an attractive option for those looking for an affordable e-scooter.
  • Other deals mentioned in the article include discounts on green-related products such as a Bluetti Christmas Member Day Sale and EcoFlow's latest 48-hour flash sale.
23

NKT Completes Investment of New Test Hall and Capacity Expansion at Swedish Cable Accessories Site

Summary

NKT has completed an investment at its Alingsas, Sweden cable accessories factory, including the construction of a new test hall and expansion of production capacity. This enhancement aims to support high demand for high-voltage power cable accessories in Europe. The new facilities are now fully operational.
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Key Takeaways

  • NKT has invested in a new test hall at its Alingsas, Sweden cable accessories factory.
  • The facility expansion also includes an increase in production capacity.
  • The investment is designed to support the high demand for high-voltage power cable accessories in Europe.
24

How to navigate volatility in ERCOT: Ascend Analytics

Summary

The article discusses how to navigate volatility in the Electric Reliability Council of Texas (ERCOT) power and energy systems, specifically focusing on revenue opportunities and the implementation of Real-Time Pricing with Battery (RTC+B). Dr. Gary Dorris, CEO of Ascend Analytics, shares insights on how optimization platforms can help manage ERCOT's grid operations. The conversation highlights the importance of adapting to market fluctuations and leveraging advanced analytics for better decision-making.
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Key Takeaways

  • The article emphasizes the need for optimization platforms like Ascend Analytics to navigate the complexities of ERCOT's revenue opportunities, which are influenced by factors such as renewable energy sources and battery storage.
  • The implementation of RTC+B is discussed as a key strategy for managing ERCOT's grid operations, with optimization platforms playing a crucial role in optimizing energy supply and demand.
  • Dr. Dorris' expertise highlights the importance of advanced analytics in managing the volatility inherent in ERCOT's power market, enabling more efficient decision-making and revenue management.
25

Federal Briefs

Summary

The US Senate has confirmed four Trump nominees to the Tennessee Valley Board of Directors, which was left without enough members for a quorum after previous Biden appointees were removed. The Energy Department's inspector general will probe the cancellation of nearly $8 billion in climate and energy funding that primarily impacted blue states. This move followed a Trump administration decision to cancel financial assistance for 223 projects worth about $7.6 billion.
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Key Takeaways

  • The US Senate has confirmed four new members to the Tennessee Valley Board of Directors, bringing an end to a period where the board was left without enough members due to previous appointments being removed.
  • The Energy Department's inspector general will investigate the cancellation of climate and energy funding that primarily impacted blue states, following a Trump administration decision to cancel nearly $8 billion in grants.
  • The probe does not necessarily imply that the cancellation was improper, but rather aims to review the department's processes when cancelling financial assistance.
26

Super i-MiEV — The Japanese Car With The Chinese Heart

Summary

The article discusses the creation of a unique electric vehicle, the Super i-MiEV, which is built from a Mitsubishi MiEV with Chinese-made battery components. This project aims to reduce waste by utilizing spare parts and repurposing an old car for a new purpose. Francisco Shi, the creator, also built a home power plant using BYD Atto 3 electric vehicle batteries.
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Key Takeaways

  • The Super i-MiEV is a modified Mitsubishi MiEV with Chinese-made battery components from the BYD Atto 3 electric vehicle.
  • Francisco Shi's project aims to reduce waste by repurposing an old car and utilizing spare parts, including building a home power plant using recycled batteries.
  • The creation of the Super i-MiEV showcases innovation in upcycling and repurposing materials to create a functional and eco-friendly vehicle.
27

Understanding the benefits of Salt River Project’s shift from webTrans to webTrans AFC with Derek Sicher

Summary

The article discusses an interview between Derek Sicher, Senior Project Manager – IT at Salt River Project (SRP), and John Engel from OATI Energy Conference. The conversation focuses on SRP's efforts to adapt to evolving customer needs, particularly in managing congestion and the transmission system. This shift is highlighted through the adoption of webTrans AFC.
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Key Takeaways

  • Salt River Project has adopted a new technology called webTrans AFC to manage congestion and improve its transmission system.
  • The goal of this shift is likely to address the growing demand for energy and adapt to changing customer needs.
  • By leveraging webTrans AFC, SRP aims to enhance its overall efficiency and reduce potential issues related to transmission management.
28

How TVA is utilizing DERMS to handle unprecedented load growth, with Joseph R. Johnson

Summary

The Tennessee Valley Authority (TVA) is leveraging Demand Response Management Systems (DERMS) to effectively manage unprecedented load growth. Through partnerships with tech giants, TVA aims to enhance demand response solutions, ensuring a stable and reliable energy grid. This partnership will enable the TVA to optimize energy distribution and consumption.
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Key Takeaways

  • The Tennessee Valley Authority (TVA) is utilizing DERMS technology to manage growing energy demands, indicating a shift towards more efficient energy management.
  • Partnerships with tech giants are key to enhancing demand response solutions, suggesting a collaborative approach to addressing energy challenges.
  • By leveraging DERMS and partnerships, TVA aims to optimize energy distribution and consumption, ensuring a stable and reliable grid, which is essential for meeting growing energy demands.

Technical papers from ArXiv - for readers interested in academic research

1

Early warning signals for loss of control

Summary

The article discusses the importance of early warning signals for loss of control in feedback systems, which can be fragile and prone to instability due to incremental damage. Researchers have developed a holistic system safety monitor that relies on dynamical indicators of resilience, which can detect approaching criticality without relying on accurate system models. This approach has potential applications in real-time early warning systems and resilient system design exploration.
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Key Takeaways

  • The article introduces the concept of critical slowing down as a phenomenon that occurs in complex nonlinear systems approaching criticality, which can be used to monitor the stability of feedback systems.
  • A holistic system safety monitor based on this concept has been developed, which can detect instability without relying on accurate system models, opening up new possibilities for real-time early warning systems and resilient system design exploration.
  • The approach has potential applications in a wide range of controlled systems, including drones, reactors, aircraft, and self-driving cars.
2

Extragradient methods with complexity guarantees for hierarchical variational inequalities

Summary

The article discusses a novel approach to solving hierarchical variational inequality problems, which encompasses several other problem classes. It establishes rates of convergence and worst-case iteration complexity results for both feasibility and optimality gaps, matching and improving the state of the art in these areas.
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Key Takeaways

  • The article presents a general framework for approaching solutions to hierarchical variational inequalities, covering various problem classes such as mathematical programs under equilibrium constraints and bilevel optimization problems.
  • It establishes rates of convergence using gap functions to measure feasibility and optimality gaps, providing worst-case iteration complexity results on both levels of the variational problem.
  • The work matches and improves upon existing state-of-the-art results in terms of iteration complexity and problem generality.