Energy Digest

Daily Summaries & Key Takeaways of Power & Energy Updates
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Last Updated: December 04, 2025 at 06:00 PM
16
News & Articles
2
Research Papers
1

Indiana utility to deliver 1.6GWh BESS for Amazon’s data center expansion, though fossil fuels form major part of package

Summary

A subsidiary of NIPSCO has agreed to deliver a 1.6GWh battery energy storage system (BESS) as part of Amazon's expansion of its data centers in the region, with the majority of the new capacity coming from fossil fuels.
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Key Takeaways

  • The project involves the construction of 3GW of new dispatchable capacity to serve Amazon's planned data center expansion.
  • Despite the emphasis on renewable energy, the majority of the package is expected to be fueled by traditional fossil fuels.
  • This deal highlights the need for more diversified and sustainable energy solutions in the tech industry's rapid expansion.
2

When the world’s largest battery power plant caught fire, toxic metals rained down – wetlands captured the fallout

Summary

A fire at Vistra's battery energy storage facility in Moss Landing, California resulted in the release of toxic metals, which affected air and soil quality. The incident highlights the potential risks associated with large-scale battery energy storage facilities. Wetlands nearby served as a natural buffer to capture some of the debris.
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Key Takeaways

  • A fire at a large battery energy storage facility can have severe environmental impacts, releasing toxic metals into the air and soil.
  • The proximity of wetlands to such facilities can serve as a natural mitigator for pollution, capturing debris and potentially reducing its impact on surrounding ecosystems.
  • The incident underscores the need for enhanced safety measures and monitoring systems at large-scale battery energy storage facilities to prevent similar incidents in the future.
3

ACP Tallies 11.7 GW of Solar, Storage, Wind Additions in Q3

Summary

The American Clean Power Association (ACP) has reported a record 11.7 GW of solar, storage, and wind power additions in the third quarter of 2025, bringing the U.S. nameplate capacity to 344.3 GW. This is attributed to the momentum developed in the past several years. However, ACP CEO Jason Grumet warns that policy instability and regulatory uncertainty threaten the ability of the US to meet future energy needs.
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Key Takeaways

  • The total number of new solar, battery storage, and onshore wind power generation added 11.7 GW in Q3 2025, setting a record for the quarter.
  • Utility-scale solar continues to lead capacity additions, while onshore wind has long been the leading US renewable energy source with 157.6 GW of installed capacity as of the latest data available.
  • Despite the impressive numbers, ACP CEO Jason Grumet notes that policy instability and regulatory uncertainty pose a significant threat to meeting future energy needs, particularly in terms of power purchase agreements being 31% lower than in Q3 2024.
4

INL Taps AWS, GE Vernova, Oil Majors for First MARVEL Microreactor Experiments

Summary

The Idaho National Laboratory (INL) has selected five commercial teams to potentially demonstrate advanced applications of its Microreactor Application Research Validation and Evaluation (MARVEL) platform. The MARVEL platform is an 85-kWth/20-kWe liquid-metal-cooled test bed currently under construction, which will help researchers explore advanced reactor applications such as microgrid integration, remote monitoring, and autonomous control technologies. The selected teams include AWS, GE Vernova, and oil majors.
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Key Takeaways

  • Five commercial teams, including AWS, GE Vernova, and oil majors, have been selected to demonstrate advanced applications of the MARVEL platform.
  • The MARVEL platform is an 85-kWth/20-kWe liquid-metal-cooled test bed currently under construction at the INL, expected to be operational by 2027.
  • The selected teams will potentially explore advanced reactor applications such as microgrid integration, remote monitoring, and autonomous control technologies.
5

SMA launches new containerized medium-voltage substation for large-scale BESS and solar plants

Summary

SMA Solar Technology has launched a new containerized medium-voltage substation, the MVPS-9200, in Europe, which is designed for large-scale battery energy storage systems (BESS) and solar plants. The solution integrates multiple components into a single standard container, simplifying power plant design and installation. It supports DC voltage of 1500 V and can be customized to suit different configurations.
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Key Takeaways

  • The MVPS-9200 containerized medium-voltage substation is designed for large-scale infrastructure and can support installations with a DC voltage of 1500 V, making it suitable for both BESS and solar plants.
  • The solution integrates multiple components, including two high-performance inverters, two transformers, and a medium-voltage distribution system, into a single standard container, simplifying power plant design and installation.
  • The MVPS-9200 can be customized to suit different configurations, using either Sunny Central UP inverters for photovoltaic power plants or Sunny Central Storage UP or UP-S inverters for BESS systems, which also features SiC-MOSFET technology to reduce energy losses.
6

How to build giant solar plants in mountainous areas

Summary

**SUMMARY** Chinese researchers have proposed a new methodology for designing utility-scale solar power projects in mountainous regions. They conducted a simulation study of a 386.4 MW solar farm near Pu’er, China, to analyze the impact of terrain on system efficiency and provide actionable decision-making support for PV array maintenance and optimization. The study used high-resolution digital elevation model data and meteorological data to quantify key operational factors. **KEY TAKEAWAYS** * Researchers have proposed a new methodology for designing utility-scale solar power projects in mountainous regions, which can help optimize system efficiency and reduce losses due to temperature, irradiance, and shading. * The study highlighted the importance of using high-resolution digital elevation model data and meteorological data to analyze terrain and climate factors that impact solar panel performance. * The proposed methodology provides actionable decision-making support for PV array maintenance and optimization in complex terrain areas, which can help improve overall system efficiency and reduce costs.
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7

PJM awards interconnection agreements to 23 BESS resources

Summary

PJM has awarded interconnection agreements to 23 battery energy storage system resources, totaling 2.2GW, in its first transition cycle of the reformed interconnection process. This marks a significant milestone for PJM's integration of BESS into its grid. The awarded projects will help PJM achieve its renewable energy and energy storage goals.
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Key Takeaways

  • 23 battery energy storage system (BESS) resources have been awarded interconnection agreements in PJM's first transition cycle, totaling 2.2GW.
  • This award represents a significant milestone for PJM's integration of BESS into its grid, supporting the adoption of renewable energy sources and energy storage.
  • The awarded projects will help PJM achieve its goals for reducing greenhouse gas emissions and promoting energy efficiency in the region.
8

Modernizing America’s power grid: why transmission lines hold the key to a sustainable future

Summary

The article discusses the importance of modernizing America's power grid, specifically highlighting the role of transmission lines in achieving a sustainable energy future. The author argues that the current state of the power grid is at an inflection point and its response will determine the country's path forward. The article suggests that transmission lines play a crucial role in integrating renewable energy sources into the grid.
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Key Takeaways

  • Transmission lines are critical for efficiently transmitting renewable energy from remote locations to population centers, enabling the widespread adoption of intermittent energy sources.
  • Upgrading and modernizing the nation's transmission infrastructure is essential to ensure reliable and efficient transmission of electricity across long distances.
  • The integration of advanced technologies such as smart grids, energy storage systems, and grid-scale batteries can help optimize transmission line performance and mitigate the challenges associated with integrating renewable energy sources.
9

Rare win for renewable energy: Trump administration funds geothermal network expansion

Summary

The US Department of Energy has approved an $8.6 million grant to Eversource Energy to expand its geothermal network in Framingham, Massachusetts. This funding marks a rare win for renewable energy projects under the Trump administration. The expansion is expected to enhance the reliability and efficiency of the grid.
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Key Takeaways

  • The US Department of Energy has provided $8.6 million in grant funding to support the expansion of Eversource Energy's geothermal network.
  • This funding demonstrates a rare instance of renewable energy project approval under the Trump administration, which has historically been more skeptical of such initiatives.
  • The geothermal network expansion is expected to improve grid reliability and efficiency, potentially contributing to a cleaner and more sustainable energy mix.
10

Two EV battery players are joining forces to develop all-solid-state batteries

Summary

Two major players in the electric vehicle (EV) battery industry, Factorial Energy and POSCO FUTURE M, are collaborating to develop all-solid-state batteries. This collaboration aims to bring significant advancements in battery technology, a key factor in improving the efficiency and performance of EVs. The development of all-solid-state batteries is considered the "holy grail" of battery tech due to its potential to significantly enhance energy density and reduce charging times.
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Key Takeaways

  • Factorial Energy and POSCO FUTURE M are partnering to develop all-solid-state batteries, a critical step in improving EV performance and efficiency.
  • The collaboration represents a significant advancement in battery technology, with the goal of creating a more sustainable and environmentally friendly alternative to traditional lithium-ion batteries.
  • The development of all-solid-state batteries has the potential to reduce charging times, increase energy density, and enhance overall EV performance.
11

Ofgem approves GBP 10.3 billion investment in UK transmission grid

Summary

The UK energy regulator, Ofgem, has approved a £10.3 billion investment in the UK transmission grid over the next five years, as part of a larger £28 billion budget for grid upgrades. This investment is expected to reach £70 billion by 2031, with at least £44 billion already committed. The regulator aims to ensure that these investments do not unfairly impact households and businesses.
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Key Takeaways

  • Ofgem has approved a total investment budget of £28 billion for gas and electricity network upgrades over the next five years.
  • The initial investment allowance is £10.3 billion, with at least £44 billion already committed for transmission upgrades between 2026 and 2031.
  • The regulator forecasts that spending on transmission upgrades could reach up to £70 billion by 2031, with projected annual additions of £108 per year to network charges on bills by 2031.
12

Flexible connections and BYOC could reduce data center burden: report

Summary

A report from Camus, encoord and Princeton University's ZERO Lab suggests that adopting a flexible approach with "bring-your-own-capacity" (BYOC) could connect data centers more quickly and save significant costs on system supply. This approach may help alleviate the burden on existing power and energy systems. The study aims to explore the potential benefits of BYOC in reducing these burdens.
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Key Takeaways

  • A flexible connection with "bring-your-own-capacity" (BYOC) could connect data centers faster, potentially reducing the time and costs associated with building new infrastructure.
  • Adopting a BYOC approach may help reduce system supply costs for data centers by allowing them to directly invest in their own capacity needs.
  • The report from Camus, encoord and Princeton University's ZERO Lab aims to explore the potential benefits of implementing a BYOC model in power and energy systems.
13

Google just backed carbon capture tech for data center energy providers. Will other tech giants follow?

Summary

Google has backed carbon capture technology for data center energy providers, which could be a game-changer for the U.S. power sector given the fast-growing electricity demands of data centers. Experts believe this development could have significant implications for the industry. The investment may also encourage other tech giants to follow suit.
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Key Takeaways

  • Google's backing of carbon capture technology for data center energy providers presents an opportunity for the U.S. power sector to adopt more sustainable practices.
  • The growing electricity demands of data centers create a need for innovative solutions like carbon capture technology, which could reduce greenhouse gas emissions in the industry.
  • The investment by Google and other tech giants may encourage other companies to follow suit, potentially leading to widespread adoption of carbon capture technology in the power sector.
14

Utility innovation, EV adoption, and digital twins define the 2025 Grid Changers

Summary

The article highlights the 2025 Grid Changers awards and discussion, which celebrates innovative projects in the utility industry. The focus is on utility innovation, electric vehicle (EV) adoption, and digital twins as key drivers of change in the grid. These advancements aim to improve energy efficiency, reduce carbon footprint, and enhance overall grid resilience.
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Key Takeaways

  • Utility innovation and EV adoption are driving forces behind the 2025 Grid Changers awards, highlighting projects that prioritize sustainability and efficiency.
  • Digital twins play a crucial role in optimizing grid operations, predicting maintenance needs, and reducing energy losses through advanced simulations.
  • The emphasis on these technologies suggests that the utility industry is shifting towards a more agile, responsive, and environmentally conscious approach to power generation and distribution.
15

Australia to host 6 GWh CATL battery in gas-plus-storage hybrid with Quinbrook

Summary

Australia's State-owned generator Stanwell has partnered with Quinbrook Infrastructure Partners to develop a massive gas-plus-storage hybrid power plant at the Gladstone State Development Area in Queensland. The project will feature a 780 MW gas turbine system and a 6,240 MWh CATL battery energy storage system. This partnership marks a significant shift towards renewable energy integration for Stanwell.
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Key Takeaways

  • A 780 MW gas turbine system and a 6,240 MWh CATL battery energy storage system will be integrated at the Gladstone State Development Area in Queensland, Australia.
  • The project is part of Quinbrook Infrastructure Partners' efforts to develop large-scale renewable energy projects in Australia, following previous partnerships with Stanwell.
  • The integration of gas turbines and batteries aims to create a hybrid power plant that can optimize energy production and storage, reducing the reliance on fossil fuels.
16

Eight energy trends that will shape energy storage in 2026

Summary

The article discusses eight energy trends that are expected to shape the energy storage market in Australia by 2026. These trends include increased adoption of renewable energy sources, growth in electric vehicle charging, and advancements in battery technology. The developments in these areas will likely drive the demand for energy storage solutions.
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Key Takeaways

  • Increased adoption of renewable energy sources is driving demand for energy storage to stabilize grid supply and demand.
  • Electric vehicle charging is becoming a significant contributor to energy storage needs, with growing numbers of EVs on the road expected to strain existing infrastructure.
  • Advancements in battery technology will play a crucial role in improving the efficiency and affordability of energy storage solutions, making them more accessible to consumers.

Technical papers from ArXiv - for readers interested in academic research

1

CaFTRA: Frequency-Domain Correlation-Aware Feedback-Free MIMO Transmission and Resource Allocation for 6G and Beyond

Summary

The article proposes a novel power and energy systems framework called CaFTRA, which aims to overcome the limitations of feedback-based MIMO transmission in wireless systems. By leveraging artificial intelligence, CaFTRA predicts channel state information based on user geolocation and eliminates real-time uplink feedback. The framework has shown promising results in simulation tests, achieving stable matching convergence and significant gains in spectral efficiency and user fairness.
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Key Takeaways

  • CaFTRA proposes a novel frequency-domain Correlation-aware Feedback-free MIMO Transmission and Resource Allocation framework for 6G and beyond wireless systems.
  • The framework leverages artificial intelligence to predict channel state information based on user geolocation, eliminating the need for real-time uplink feedback.
  • Simulation results demonstrate that CaFTRA achieves stable matching convergence and significant gains in spectral efficiency and user fairness compared to 5G.
2

Semi-Markov Decision Process Framework for Age of Incorrect Information Minimization

Summary

Here is the analysis of the power and energy systems article: The article discusses a framework for optimizing age of incorrect information (AoII) minimization in remote estimation systems. It assumes an information source observing a discrete-time finite-state Markov chain and employs push-based transmissions towards a monitor tasked with estimating the source. The goal is to minimize the weighted sum of time average of AoII, estimation, and transmission costs by choosing suitable thresholds.
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Key Takeaways

  • The article formulates the problem as a semi-Markov decision process (SMDP) with the same state-space as the original discrete-time finite-state Markov chain (DTMC), aiming to optimize multi-threshold transmission policies.
  • A novel stochastic tool called dual-regime absorbing Markov chain (DR-AMC) and its corresponding absorption time distribution (DR-DPH) are used to obtain the optimum parameters for the SMDP, enabling the minimization of AoII costs.
  • The framework aims to minimize the weighted sum of an arbitrary function of AoII and estimation, as well as transmission costs, by choosing optimal thresholds for packet transmissions based on the estimated AoII value.