Energy Digest

Daily Summaries & Key Takeaways of Power & Energy Updates
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Last Updated: January 22, 2026 at 06:00 PM
24
News & Articles
6
Research Papers
1

Microsoft Commits to Full Electricity Cost Recovery in Data Center Communities

Summary

Microsoft has committed to ensuring that its data centers will not contribute to increased residential utility rates by implementing a comprehensive framework for cost-recovery. The company's pledge also includes advancing utility coordination and funding grid infrastructure, marking a significant step in the industry. This commitment follows the growing concerns of hyperscalers' impact on the energy grid.
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Key Takeaways

  • Microsoft has become the first major hyperscaler to publicly commit to a comprehensive framework for cost-recovery in its data centers.
  • The company's pledge includes advancing utility coordination, directly funding grid infrastructure, and ensuring that its data centers will not contribute to increased residential utility rates.
  • This commitment highlights the growing recognition of the need for industry-wide responsibility and sustainability measures among hyperscalers, particularly with regards to their impact on the energy grid.
2

How utilities are making the grid more reliable with condition-based transformer monitoring

Summary

The article discusses how utilities are adopting condition-based transformer monitoring to improve the reliability of power grids. This approach allows for proactive maintenance, reducing downtime and increasing the lifespan of critical equipment. By leveraging advanced technologies, utilities can optimize their grid operations and enhance overall system performance.
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Key Takeaways

  • Utilities are transitioning from traditional scheduled maintenance to condition-based transformer monitoring to reduce downtime and increase equipment lifespan.
  • Condition-based monitoring enables real-time data analysis, allowing for prompt identification of potential issues and targeted interventions, thereby improving grid reliability.
  • The adoption of this approach is expected to result in increased performance and life expectancy for critical power equipment, ultimately leading to improved overall system efficiency.
3

Former Smelter Site Now Home to 1.2-GW Pumped Storage Hydro Project

Summary

A 50-year operating license has been granted by the Federal Energy Regulatory Commission (FERC) for a 1.2-GW pumped storage hydro project located on a former smelter site in Washington state. The project is being developed by Rye Development and Copenhagen Infrastructure Partners, with operations set to commence soon. This project represents a significant investment in renewable energy infrastructure.
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Key Takeaways

  • A 1.2-GW pumped storage hydro project has been granted a 50-year operating license by FERC, indicating approval for its commercial operation.
  • The project is being developed on a former smelter site in Washington state, highlighting the reuse and repurposing of existing industrial sites for renewable energy generation.
  • This investment marks an important step forward for renewable energy infrastructure development in the region.
4

Trump administration scraps multimillion-dollar solar projects in Puerto Rico as grid crumbles

Summary

The Trump administration has cancelled multimillion-dollar solar projects in Puerto Rico, exacerbating the island's ongoing power outages and affecting low-income families. This decision comes at a time when the grid is still struggling to recover from previous events. The cancellation will likely have a significant impact on the energy landscape in Puerto Rico.
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Key Takeaways

  • The Trump administration's decision to cancel solar projects in Puerto Rico will exacerbate the island's power crisis, which has already left many low-income families without access to reliable electricity.
  • The cancellation of these multimillion-dollar projects is seen as a misguided attempt by the administration to prioritize fossil fuels over renewable energy sources, despite the growing importance of climate action.
  • This decision highlights the lack of attention given to Puerto Rico's energy needs under the Trump administration, particularly in light of the ongoing power outages and the island's vulnerability to natural disasters.
5

Oak Ridge Lab, Type One Energy Partnering on Nuclear Fusion Project

Summary

The Oak Ridge National Laboratory, Type One Energy, and the University of Tennessee in Knoxville are partnering to establish a world-class facility for nuclear fusion energy research. The facility will evaluate how materials react under extreme conditions in a fusion device at the Bull Run Energy Complex in East Tennessee. This collaboration aims to drive American innovation in fusion energy.
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Key Takeaways

  • A new high-heat flux (HHF) facility is being established at the Bull Run Energy Complex in East Tennessee to research nuclear fusion energy.
  • The facility will study how materials react under extreme conditions in a fusion device, which could contribute to advancing the field of fusion energy.
  • This partnership is part of efforts to drive American innovation and move fusion energy closer to reality.
6

The POWER Interview: Grid Integration of DERs

Summary

The article discusses the importance of integrating distributed energy resources (DERs) into the power grid, highlighting the need for modernizing infrastructure, using advanced controls, and developing new market rules to manage two-way power flow. This integration is crucial for utilities and transmission system operators as it provides flexibility in power generation and delivery. It also enables the efficient use of renewable energy sources.
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Key Takeaways

  • Integrating DERs into the grid requires modernizing infrastructure and using advanced controls to manage power flow.
  • Developing new market rules is necessary to effectively manage two-way power flow and optimize energy distribution.
  • The integration of DERs is crucial for utilities and transmission system operators to provide flexibility in power generation and delivery, particularly with the increasing adoption of renewable energy sources.
7

Can rising power demand boost renewables above policy obstacles in 2026?

Summary

The power industry is facing new challenges with the implementation of FEOC rules and the end of IRA credits, but rising electricity demand and bills also present opportunities for renewable energy growth.
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Key Takeaways

  • Rising power demand and increasing electricity bills can help drive adoption of renewables despite policy obstacles.
  • New FEOC (Federal Energy Oversight Committee) rules may create uncertainty and challenges for the industry, but also provide an opportunity to improve efficiency and reduce costs.
  • The end of IRA (Inflation Reduction Act) credits in 2026 will likely lead to a shift in market dynamics, potentially favoring renewables as consumers seek more affordable energy options.
8

EV slowdown creates potential lifeline for US energy storage amid FEOC, tariffs

Summary

The US energy storage market is facing challenges due to Foreign Entity of Concern (FEOC) restrictions and a 25% tariff increase on Chinese-origin battery energy storage systems. However, the slowdown in EV adoption caused by these restrictions may create opportunities for domestic energy storage providers to expand their market share. This could lead to increased demand for US-based energy storage solutions.
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Key Takeaways

  • The FEOC restrictions and tariff increase are expected to limit the supply of Chinese-origin battery energy storage systems (BESS), potentially disrupting the US energy storage market.
  • The slowdown in EV adoption caused by these restrictions may create opportunities for domestic energy storage providers to expand their market share and capture a larger share of the US energy storage market.
  • US energy storage companies may need to invest in research and development to improve the efficiency, cost-effectiveness, and scalability of their products to remain competitive in the domestic market.
9

Sungrow releases new inverters, storage system for utility and C&I solar

Summary

Sungrow has released new power and energy systems products, including a utility string inverter, a three-phase hybrid inverter for commercial and industrial applications, and a liquid-cooled energy storage system. These products aim to address real-world challenges related to grid stability, system deployment, and long-term operation in global energy markets. The new products reflect Sungrow's focus on system-level innovation and enhanced grid compatibility.
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Key Takeaways

  • The SG465HX utility string inverter delivers 465 kW of AC output power with a maximum efficiency of 99%, making it suitable for large-scale solar power plants.
  • Sungrow has developed a three-phase hybrid inverter, the SH125CX, which is designed for commercial and industrial applications, supporting up to six maximum power point tracking units (MPPTs).
  • The company also released a liquid-cooled energy storage system, the PowerStack ST255CS, with long-duration storage capability, addressing real-world challenges related to grid stability and operation.
10

Real-Time Grid Automation Vs. Power Interruptions

Summary

The article discusses the shift in utilities' approach from a reactive to proactive method to improve distribution system resilience, highlighting the benefits of real-time grid automation. This proactive approach aims to minimize power interruptions and enhance overall grid efficiency. By leveraging advanced technologies, utilities can better manage their distribution systems.
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Key Takeaways

  • Real-time grid automation allows for more efficient management of energy supply and demand, reducing the likelihood of power interruptions.
  • Proactive measures enabled by real-time grid automation enable utilities to quickly respond to grid instability and minimize the impact of outages.
  • The shift towards proactive grid management can lead to improved overall grid resilience, reliability, and efficiency.
11

Proposed Expansion of Upper Midwest Transmission Line Seeks to Address Growing Electricity Demand

Summary

A proposed expansion of a transmission line in the Upper Midwest aims to address growing electricity demand in the region. The project, led by energy providers Great River Energy and Xcel Energy, seeks to increase transmission capacity to support increased energy usage from renewable sources like wind and solar. This expansion is part of efforts to modernize the region's power grid.
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Key Takeaways

  • The proposed expansion aims to address growing electricity demand in the Upper Midwest, which is driven by increasing adoption of renewable energy sources.
  • Energy providers involved in the project include Great River Energy, Minnesota Power, Missouri River Energy Services, Otter Tail Power Company, and Xcel Energy.
  • The transmission line expansion will support the integration of more wind and solar power into the grid, promoting a cleaner and more efficient energy mix.
12

Photovoltaics and jobs: The solar PV sector is the largest employer in the renewable energy industry

Summary

The International Renewable Energy Agency's (IRENA) report on renewable energy and jobs has found that the solar photovoltaic sector is the largest employer in the renewable energy industry, accounting for over 7.2 million jobs worldwide. The report also highlights the need for stronger public action to build domestic supply chains and ensure a more inclusive workforce. With global renewable energy jobs reaching 16.6 million in 2024, growth slowed compared to previous years.
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Key Takeaways

  • The solar photovoltaic sector is the largest employer in the renewable energy industry, accounting for over 43% of total renewable energy sector employment by technology.
  • Global renewable energy jobs reached 16.6 million in 2024, with a nominal annual growth rate of 2.5%, compared to previous years which saw higher growth rates.
  • The report emphasizes the need for inclusive policies and expanded training opportunities to ensure that workers, particularly those from underrepresented groups, are able to benefit from the energy transition.
13

Spanish electricity grid reaches 85.7% saturation after 2.8 GW loss

Summary

Spain's electricity grid has reached a saturation level of 85.7% after losing nearly 2.8 GW of available capacity in two months, leaving over 5,200 facilities without spare capacity. This strain is primarily due to rising electricity demand from electrification and new industrial projects. The Basque Country and other regions have recorded the highest levels of structural saturation.
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Key Takeaways

  • Spain's electricity grid has lost nearly 2.8 GW of available capacity in two months, pushing overall saturation to 85.7%.
  • More than 5,200 facilities are fully saturated, with the Basque Country recording the highest level at 99.8%, followed by Navarre and La Rioja.
  • The strain on the grid is primarily due to rising electricity demand from electrification and new industrial projects, with only six provinces retaining more than 50% of available substation capacity.
14

‘Agrivoltaics is not just a land-sharing concept, but a systems-level solution to some of the world’s most pressing challenges’

Summary

The article discusses a study on agrivoltaics, a systems-level approach to combining agriculture and solar power production. Researchers analyzed six interconnected spheres of impact, including sustainability, soil-crop productivity, socioeconomic resilience, solar power generation, spatial efficiency, and species. The study found that agrivoltaics has the potential to generate over $1 trillion in added global agricultural income and increase crop yields by over 1,800 million tonnes annually.
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Key Takeaways

  • Agrivoltaics may generate over $1 trillion in added global agricultural income under optimal terms, making it a potentially lucrative solution for sustainable food production.
  • The system-level approach of agrivoltaics can address multiple pressing challenges, including food insecurity, climate stress, land-use conflicts, and economic vulnerability simultaneously.
  • Agrivoltaics has the potential to increase crop yields by over 1,800 million tonnes annually, contributing significantly to global food security and sustainability efforts.
15

Long-duration energy storage costs declining, European policymakers urged to make ‘strategic choice’

Summary

The costs of long-duration energy storage (LDES) technologies are expected to decline by around 37% on average by 2030, according to a new study published by the Electric Power Research Institute (EPRI). This decline is attributed to advancements in technology and economies of scale. As a result, European policymakers are being urged to make a "strategic choice" regarding LDES adoption.
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Key Takeaways

  • The costs of long-duration energy storage technologies are expected to decrease significantly over the next decade, making them more competitive with traditional energy sources.
  • This decline in cost is driven by advancements in technology and economies of scale, which will likely have a positive impact on the adoption of LDES solutions.
  • European policymakers are being urged to make informed decisions about LDES adoption, as they play a crucial role in shaping the future of energy storage and grid resilience.
  • The study highlights the importance of strategic planning and investment in LDES technologies to ensure a secure and sustainable energy future.
16

Fujiyama Power commissions 1 GW solar cell plant in India

Summary

Fujiyama Power Systems has commissioned a 1 GW solar cell manufacturing facility in Dadri, India, which will produce mono passivated emitter and rear contact solar cells for internal use. The move aims to strengthen supply-chain security, reduce dependence on imported cells, and achieve cost control. Production was completed six months ahead of schedule with significant cost savings.
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Key Takeaways

  • Fujiyama Power Systems has started production at its 1 GW solar cell manufacturing facility in Dadri, Uttar Pradesh, India, marking a major step towards strengthening the company's manufacturing integration.
  • The new facility will cater entirely to the company's internal consumption, reducing dependence on imported cells and improving supply reliability for its solar panel operations.
  • By bringing solar cell production in-house, Fujiyama Power Systems aims to achieve greater cost control, reduce reliance on imported cells, and improve visibility and control across the value chain.
17

Institute of Science Tokyo Unveils Solid Electrolyte for Low-Temperature Hydrogen Storage

Summary

The Institute of Science Tokyo has developed a breakthrough solid electrolyte that enables low-temperature hydrogen storage in magnesium hydride, overcoming traditional metal hydrides' temperature limitations. This innovation allows for reversible hydrogen storage at a surprisingly mild 90°C and demonstrates potential for real-world zero-emission technology. The research, led by Professor Ryoji Kanno, offers a promising solution for sustainable energy applications.
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Key Takeaways

  • A solid electrolyte has been developed that enables low-temperature reversible hydrogen storage in magnesium hydride at 90°C, surpassing traditional metal hydrides' temperature requirements.
  • The breakthrough is attributed to the novel crystal lattice of the solid electrolyte, which provides a 3D maze of tetrahedral and octahedral pockets for hydride ions to zip through, enhancing ionic conductivity.
  • The achievement demonstrates potential for real-world zero-emission technology, with the research team demonstrating stable operation over ten full charge-discharge cycles at the low temperature.
18

Solar met 61% of US electricity demand growth in 2025

Summary

Solar energy has become a primary source for meeting the US's surging power needs, accounting for nearly two-thirds of the growth in electricity demand in 2025. Solar generation increased by 83 TWh, a 27% increase over 2024, and now generates 8.5% of all US electricity. The rise of battery storage is enabling solar to provide dispatchable electricity throughout the day.
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Key Takeaways

  • Solar energy met nearly two-thirds (61%) of the growth in US electricity demand in 2025, with a record-breaking increase in solar generation and a surge in battery capacity.
  • The growth in solar energy was most pronounced in regions where demand rose the fastest, such as Texas and the Midwest, which saw solar meet 81% of the increase in electricity demand.
  • The integration of battery storage is transforming the US energy landscape, enabling solar to provide dispatchable electricity throughout the day and reducing reliance on fossil fuels, as seen in Florida where solar growth exceeded demand growth.
19

MGM Resorts achieves 100% daytime solar power on Las Vegas strip

Summary

MGM Resorts International has achieved 100% daytime solar power on the Las Vegas strip through a new 25-year power purchase agreement with Estuary Power's Escape Solar and Storage project. The facility, which includes a 115 MW solar array and 400 MWh energy storage, provides power to MGM's hotels, as well as Caesars Entertainment and Wynn Las Vegas under long-term agreements. This milestone marks a significant step towards MGM's goal of using 100% renewable electricity domestically by 2030.
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Key Takeaways

  • MGM Resorts International has secured 100% daytime solar power on the Las Vegas strip through its new partnership with Estuary Power, which is expected to significantly reduce the company's carbon footprint.
  • The Escape Solar and Storage project, which includes a 115 MW solar array and energy storage, will provide power to MGM's hotels, as well as Caesars Entertainment and Wynn Las Vegas under long-term agreements.
  • This milestone marks an important step towards MGM's goal of using 100% renewable electricity domestically by 2030, demonstrating the company's commitment to sustainability and reducing its environmental impact.
20

US Startup Brings Diesel-Killing Energy Storage Down To Earth, From Mars

Summary

A US startup has developed a compact, containerized energy storage system that can store solar power and deliver it for over 100 hours at a time, day or night. This technology is said to be "diesel-killing," implying it's highly efficient and effective in reducing the need for diesel generators. The system's compact design allows it to be easily deployed on Mars, suggesting its potential for use in space exploration.
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Key Takeaways

  • A new compact energy storage system can store solar power and deliver it for over 100 hours at a time.
  • This technology is considered "diesel-killing," indicating high efficiency and effectiveness in reducing diesel generator usage.
  • The system's design makes it suitable for deployment on Mars, highlighting its potential applications in space exploration.
21

A Texas data center will open sooner thanks to an offline grid battery

Summary

A partnership between a data center developer and Eolian, the owner of the Chisholm Grid battery in Texas, aims to accelerate the growth of AI infrastructure by providing a reliable energy storage solution. The battery will enable a data center to operate independently from the grid, reducing reliance on power outages. This innovative approach models a new way for energy storage to support the growing demand for AI services.
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Key Takeaways

  • A data center developer has partnered with Eolian to utilize their 100 megawatts/125 megawatt-hours of grid battery capacity, Chisholm Grid, in Texas.
  • The partnership aims to provide a reliable energy storage solution, enabling the data center to operate independently from the grid and reduce reliance on power outages.
  • This innovative approach models a new way for energy storage to support the growing demand for AI services by accelerating the build-out of AI infrastructure.
22

Sage Geosystems Raises Over $97 Million To Deploy World’s First Commercial Pressure Geothermal Power Generation Facility

Summary

Sage Geosystems has raised over $97 million in Series B funding to deploy the world's first commercial pressure geothermal power generation facility, a pioneering project that will advance the company's geothermal power generation and energy storage solutions.
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Key Takeaways

  • Sage Geosystems is co-leading its Series B financing with Ormat Technologies and Carbon Direct Capital, indicating strategic partnerships for the project.
  • The funding will support the development of the company's next-generation geothermal power generation project, marking a significant milestone in the commercialization of pressure geothermal technology.
  • This investment suggests that Sage Geosystems is taking a major step forward in its mission to provide sustainable and innovative energy solutions through its geothermal power generation capabilities.
23

Report Quantifies Climate, Health Benefits of Clean Energy for Data Centers

Summary

A new report by the Union of Concerned Scientists (UCS) estimates that powering US data centers with clean energy could avoid trillions of dollars in health and environmental costs. The report finds that while decarbonizing the power sector would increase wholesale electricity costs, it would still deliver significant climate and health benefits. Restoring federal clean energy tax credits could lower electricity costs by $248 billion.
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Key Takeaways

  • Powering US data centers with clean energy could avoid trillions of dollars in health and environmental costs.
  • Decarbonizing the power sector to meet rising electricity demand from data centers would increase wholesale electricity costs, but still deliver significant climate and health benefits.
  • Restoring federal clean energy tax credits could lower electricity costs by $248 billion and shift the cost off ratepayers.
24

Wind and solar overtook fossil fuels across Europe in 2025

Summary

In 2025, Europe's power mix shifted in favor of wind and solar energy, with these renewable sources generating more electricity than fossil fuels for the first time. Wind and solar supplied a record 30% of EU power, surpassing fossil fuels at 29%. This milestone marks a significant turning point in Europe's transition to cleaner energy.
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Key Takeaways

  • Wind and solar energy overtook fossil fuels as the primary source of electricity generation in Europe in 2025.
  • The share of wind and solar power in Europe's power mix reached a record high of 30%, surpassing the 29% supplied by fossil fuels.
  • This milestone marks a significant shift towards cleaner energy sources, indicating a major breakthrough in Europe's transition to renewable energy.

Technical papers from ArXiv - for readers interested in academic research

1

Electrical Design of a Clean Offshore Heat and Power (CleanOFF) Hub

Summary

The article presents an innovative offshore solution for powering oil & gas platform clusters using a wind farm and hydrogen hub. The study aims to design a feasible off-grid system alternative to conventional electrification solutions. The results show promising potential for this alternative energy approach, but also highlight challenges that need to be addressed.
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Key Takeaways

  • A power system model was developed to evaluate the design and operation of the CleanOFF hub, taking into account factors such as wind farm fluctuations and equipment sizing.
  • The study found that reducing battery energy storage system (BESS) size can significantly decrease costs, with ramp rates of seconds versus minutes resulting in a 60-70% reduction and synchronized control of electrolyzers leading to an additional 15-20% reduction.
  • The simulations revealed challenges in achieving self-sufficiency for hydrogen production, highlighting the need for design improvements to overcome these obstacles.
2

Ramping-aware Enhanced Flexibility Aggregation of Distributed Generation with Energy Storage in Power Distribution Networks

Summary

The article proposes a ramping-aware flexibility aggregation scheme for distributed energy resources (DERs) in power distribution networks, which accounts for DER ramp limits and yields provably disaggregable flexibility envelopes. The proposed method also introduces a pre-ramping strategy to enhance the attainable flexibility region while preserving network feasibility and disaggregation guarantees. The results demonstrate a significant improvement in flexibility compared to a baseline model.
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Key Takeaways

  • The proposed scheme explicitly accounts for DER ramp limits, which is crucial for real deployments as existing aggregation schemes often ignore these constraints.
  • The introduction of a pre-ramping strategy can further enhance the attainable flexibility region while preserving network feasibility and disaggregation guarantees.
  • The proposed method has been validated on an IEEE-33 bus distribution system and demonstrates a significant improvement in flexibility (5.2% to 19.2%) compared to a baseline model, depending on system conditions.
3

Efficient reformulations of ReLU deep neural networks for surrogate modelling in power system optimisation

Summary

This article proposes a linear programming reformulation for ReLU deep neural networks to enable tight and tractable embedding of learned surrogate models in power system optimization. The proposed method is evaluated on a case study involving aggregator bidding problems and benchmarked against state-of-the-art alternatives, demonstrating comparable solution quality while improving computational performance and preserving model fidelity.
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Key Takeaways

  • The article proposes a linear programming reformulation for ReLU deep neural networks with non-negative weight matrices beyond the first layer to enable integration of learned surrogate models in power system optimization.
  • The proposed convexified ReLU DNN achieves solution quality comparable to piecewise linearization (PWL) and MIP-based reformulations, while significantly improving computational performance and preserving model fidelity.
  • The method offers a scalable and reliable approach for integrating learned surrogate models in optimisation, with applicability to emerging power system applications.
4

A Two-Stage Risk-Averse DRO-MILP Methodological Framework for Managing AI/Data Center Demand Shocks

Summary

The article proposes a two-stage risk-aware distributionally robust optimization (DRO)-Mixed-Integer Linear Programming (MILP) framework to manage AI-driven data center demand shocks in power systems. The framework coordinates the pre-allocation and post-event dispatch of Flexible Capacity Modules to stabilize the grid and minimize penalties. It is designed for scalability and can be applied on smaller IEEE test feeders or expanded to larger systems.
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Key Takeaways

  • The proposed DRO-MILP framework addresses emerging digital-era disturbances, such as AI-driven data center load surges, which challenge traditional resilience frameworks.
  • The framework consists of two stages: Stage-I optimizes Flexible Capacity Module (FCM) allocation using DRO with CVaR to hedge against uncertain load surges, and Stage-II models real-time stabilization following stochastic demand-shock scenarios.
  • The framework is designed to be scalable, allowing it to be applied on smaller IEEE test feeders or expanded to larger systems capable of representing AI-scale loads.
5

Stochastic EMS for Optimal 24/7 Carbon-Free Energy Operations

Summary

The article proposes a two-stage stochastic optimization formulation for achieving 24/7 carbon-free energy (CFE) compliance in Thailand's power system, incorporating primary energy technologies such as solar power, battery storage, and renewable energy procurement. The study addresses near real-time operations using a 15-minute resolution and incorporates deep learning-based forecasting to account for uncertainties in load and solar generation. The proposed system aims to provide a feasible pathway for transitioning to carbon-free operations.
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Key Takeaways

  • The article proposes a novel two-stage stochastic optimization formulation for optimal 24/7 CFE operations, incorporating primary energy technologies such as solar power, battery storage, and renewable energy procurement.
  • The study addresses near real-time operations using a 15-minute resolution, providing a more dynamic approach to managing the energy system compared to traditional long-term planning methods.
  • The proposed system explicitly treats CFE compliance as a model parameter, enabling flexible targets and accounting for uncertainties in load and solar generation through deep learning-based forecasting.
6

Instantaneous Frequency in Power Systems using the Teager-Kaiser Energy Operator

Summary

The article discusses a novel instantaneous-frequency (IF) local estimator based on the complex Teager-Kaiser energy operator and dynamic-signal identity, which aims to correct the bias in conventional IF estimators used in power systems. The proposed approach aligns with complex-frequency kinematics and provides a geometric interpretation of curvature and torsion without phase unwrapping. The estimator's accuracy is demonstrated through simulations and data-driven examples.
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Key Takeaways

  • The article proposes a new instantaneous-frequency (IF) local estimator using the complex Teager-Kaiser energy operator, which corrects the bias in conventional estimators.
  • The proposed approach aligns with complex-frequency kinematics and provides a geometric interpretation of curvature and torsion without phase unwrapping.
  • Simulations and data-driven examples demonstrate the accuracy of the proposed IF estimator, making it a potential solution for power systems applications.