PG&E Powers Ahead on Breakthrough Grid Innovation with Dynamic Line Rating, Asset Health Monitoring Demonstration

Rhea-AI Summary

PG&E (NYSE:PCG) launched a field demonstration of Dynamic Line Rating (DLR) and Asset Health Monitoring (AHM) on Dec. 11, 2025 to test sensors, real‑time analytics, and vendor platforms that aim to boost transmission capacity, reduce congestion, and improve reliability during extreme weather.

Installations and vendor dashboards are live across multiple substations and corridors, and an 18‑month independent evaluation by EPRI will measure performance. The project is funded under California's EPIC public purpose R&D program.

Positive

• 18‑month independent field evaluation by EPRI
• Vendor dashboards live; hardware installations completed across multiple substations and corridors
• DLR and AHM aim to increase line utilization and reduce congestion without building new lines

Negative

• Project is a field demonstration; benefits not yet validated at commercial scale
• No quantified cost savings, revenue impact, or deployment timeline disclosed

Key Figures

Field demonstration length 18 months Independent DLR and AHM evaluation by EPRI

Lines monitored 80 miles Prisma Photonics monitoring from two PG&E substations

Utility collaborators 450 companies EPRI collaborations across the energy sector

Countries 45 countries Global reach of EPRI collaborations

Market Reality Check

$15.08 Last Close

Volume Volume 24,174,602 is slightly below the 20-day average of 26,113,773 (relative volume 0.93). normal

Technical Shares at 15.08 trade below the 200-day MA of 15.72 and sit 26.21% below the 52-week high and 16.27% above the 52-week low.

Peers on Argus

PCG was up 0.6% while key regulated electric peers were mixed to slightly negative, with ED, WEC, DTE and PEG all down modestly and ETR only slightly positive, suggesting a company-specific tilt to sentiment around this grid innovation update.

Historical Context

Date	Event	Sentiment	Move	Catalyst
Nov 19	Undergrounding update	Neutral	-2.7%	Update on 1,000 miles undergrounding and CPUC guideline concerns.
Nov 18	Customer efficiency tips	Neutral	-2.7%	Seasonal guidance and programs to help reduce winter energy bills.
Nov 18	Scam awareness campaign	Neutral	-1.1%	Utility Scam Awareness Day outreach citing 21,000 reports and losses.
Nov 12	Executive appointment	Positive	+1.3%	New Chief Commercial Officer to drive large‑customer strategy and load growth.
Nov 05	Safety service offer	Neutral	+0.7%	Free gas safety checks and pilot re‑lights ahead of winter season.

Pattern Detected

Recent operational and customer-focused news has generally seen modest, aligned price reactions without strong divergences.

Recent Company History

Over the last month, PCG news has focused on operations, customer programs, and long‑term demand. On Nov 5, it promoted free gas appliance safety checks, followed on Nov 12 by appointing a Chief Commercial Officer to manage expected load growth that could roughly double by 2040. Mid‑November releases highlighted scam awareness, holiday energy efficiency, and support for undergrounding 1,000 miles of lines. Price moves of about -2.66% to +1.33% stayed modest, indicating incremental reactions to operational updates like today’s grid technology demonstration.

Market Pulse Summary

This announcement highlighted PG&E’s launch of Dynamic Line Rating and Asset Health Monitoring trials, including an 18‑month EPRI‑advised field demonstration and technologies monitoring about 80 miles of transmission lines. It fits a series of operational and safety‑oriented updates over recent months. Investors monitoring this theme may track future updates on realized capacity gains, reliability metrics, and how these efforts interact with previously disclosed wildfire mitigation and regulatory risk factors in recent SEC filings.

Key Terms

grid modernization technical

"aims to create new pathways for grid modernization, unlock hidden capacity..."

Grid modernization involves upgrading the electrical system to make it more reliable, efficient, and capable of handling new technologies. It often includes integrating advanced digital tools, better communication systems, and renewable energy sources. For investors, these improvements can lead to more stable energy supplies and open opportunities in emerging energy markets and technologies.

transmission system technical

"deliver real-time insights into transmission system health and performance..."

A transmission system is the high‑voltage network of lines, substations and control equipment that moves electricity (or other bulk energy) from generators to local distribution networks—like a highway carrying goods from factories to neighborhood streets. It matters to investors because who owns and operates the system, its capacity and reliability, and the rules governing its use drive predictable revenue, required capital spending and risk from outages or congestion, all of which affect a company’s cash flow and valuation.

AI-generated analysis. Not financial advice.

Technology demonstration aims to boost reliability, unlock capacity, and prepare California's grid for extreme weather and additional renewable energy integration

OAKLAND, Calif., Dec. 11, 2025 /PRNewswire/ -- Pacific Gas and Electric Company (PG&E) today announced the successful launch of its Dynamic Line Rating (DLR) and Asset Health Monitoring (AHM) technology demonstration, bringing together advanced sensor technology, real-time analytics, and innovative partner solutions to optimize electric transmission line capacity and proactively monitor asset health.

PG&E and project partners recently completed hardware field installations and vendor dashboard setups, achieving trial deployment status across all technologies.

This milestone reflects PG&E's broader strategy to expand and upgrade substation and transmission line capacity, reduce congestion, and ensure reliable service during extreme weather events such as heat waves and high winds.

DLR technology helps utilities determine how much electricity powerlines can safely carry by using real-time weather data like temperature and wind. Instead of relying on fixed limits, it adjusts the rating as conditions change, so utilities can send more power through existing lines without building new ones.

By testing and validating DLR and AHM solutions, PG&E aims to create new pathways for grid modernization, unlock hidden capacity, improve reliability, and integrate more renewable energy, while saving customers money in the process by optimizing its existing assets and avoiding costlier traditional infrastructure upgrades.

"This project is a critical step in modernizing California's grid," said Mike Delaney, Vice President of Utility Partnerships and Innovation, PG&E. "Fundamentally, this project is focused on leveraging new technology to save California's families and businesses money. If this test is successful, we see a path to unlock millions of dollars per year of cost savings through dynamic line rating and asset health monitoring technologies."

PG&E is collaborating with EPRI, which serves as the project's technical advisor, to perform an independent evaluation of the DLR and AHM technologies over an 18-month field demonstration.

Technology Partners
PG&E is working with the following organizations through this project:

• Heimdall Power - Named one of TIME Magazine's Best Inventions of 2025, Heimdall Power's dynamic line rating solution functions like a smartwatch for the power grid. Its advanced sensors, called Neurons, deliver real-time insights into transmission system health and performance by measuring things like powerline temperature, sag, current, and micro-climate weather conditions. PG&E is leveraging the Neurons' real-time data, combined with predictive analytics in Heimdall Power's cloud-based platform, to evaluate the capability for safely increasing line utilization and reducing grid congestion—all without costly infrastructure expansion.
• Prisma Photonics - Prisma Photonics is deploying its PrismaPower beacon system devices at two PG&E substations, one in Humboldt County and one in San Luis Obispo, to monitor 80 miles of transmission lines—all without installing any equipment on the powerlines. PG&E is evaluating the company's DLR and AHM applications: PrismaCapacity, PrismaClimate, and PrismaCircuit. These tools provide continuous monitoring of line capacity, environmental conditions, and circuit health, offering a holistic view of grid performance. Prisma Photonics' technology aims to transform PG&E's existing optical fiber infrastructure into a comprehensive sensing system, enabling wide-area monitoring across challenging terrain without costly sensor installations on towers or conductors. This innovative approach aims to address California's grid challenges from data center demand, extreme weather, and aging infrastructure, delivering actionable insights on powerline ratings and asset health with precise location data that could help utilities maximize efficiency while maintaining safety and reliability.
• Sentrisense - Sentrisense provides real-time monitoring for overhead power lines, combining DLR and AHM in a fully autonomous field device, the SENTRI sensor. The SENTRI attaches directly to electric transmission and distribution powerlines, delivering continuous data on temperature, sag, vibration, and conductor fatigue. By tracking these parameters in real operating conditions, Sentrisense helps utilities detect early signs of degradation, improve grid reliability, and operate lines closer to their true capacity. PG&E is evaluating the technology as a potentially cost-efficient way to extend the lifespan of critical assets and support data-driven maintenance across the grid.
• Smart Wires - Smart Wires' grid enhancing technologies (GETs) help utilities gain more capacity, flexibility and visibility from the transmission system they already have. SmartWires portfolio includes SmartValve, an Advanced Power Flow Control (APFC) solution, and SUMO, a Dynamic Line Rating software platform that uses real-time and forecasted weather data to show how much power each line can safely carry throughout the day. SUMO's insights can improve situational awareness, support decisions around loading and congestion, and reduce the need for major grid expansions. As part of this project, PG&E is evaluating how SUMO works alongside DLR and asset-health monitoring tools to strengthen overall system performance and resilience.

Technical Project Collaborator

• EPRI – Founded in 1972, the Electric Power Research Institute (EPRI) is the world's preeminent independent, non-profit energy research and development organization, with offices around the world. EPRI's trusted experts collaborate with more than 450 companies in 45 countries, driving innovation to ensure the public has clean, safe, reliable, and affordable access to electricity across the globe. Within this demonstration project, EPRI serves as an objective technical advisor, performing an independent evaluation of the DLR and AHM technologies and gathering data and observations over the 18-month field demonstration to inform future best practices to benefit the broader electric industry.

Looking Ahead
PG&E's DLR and AHM technology demonstration project underscores the company's commitment to innovation and collaboration with emerging technology providers.

With vendor dashboards now live and installations completed across multiple substations and transmission corridors, PG&E is testing these tools' ability to reduce congestion, enhance reliability, and prepare the grid for the challenges of extreme weather and the growing demand for renewable energy.

This project is funded through PG&E's electric R&D budget under the public purpose program Electric Program Investment Charge (EPIC).

EPIC enables California investor-owned utilities to demonstrate new technologies and evaluate how they support safety, reliability, and affordability, environmental sustainability and equity objectives for the benefit of all California electric customers.

For more information about PG&E's R&D and innovation efforts, visit www.pge.com/innovation

About PG&E
Pacific Gas and Electric Company, a subsidiary of PG&E Corporation (NYSE: PCG), is a combined natural gas and electric utility serving more than sixteen million people across 70,000 square miles in Northern and Central California. For more information, visit pge.com and pge.com/news 

 

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SOURCE Pacific Gas and Electric Company

FAQ

What did PG&E announce about Dynamic Line Rating and Asset Health Monitoring on Dec 11, 2025 (PCG)?

PG&E announced a field demonstration of DLR and AHM with vendor installations live and an 18‑month independent evaluation by EPRI.

How long will the PG&E DLR/AHM field demonstration run for PCG?

The project includes an 18‑month field demonstration with EPRI performing an independent evaluation.

Which technology partners is PG&E working with for the PCG DLR/AHM demo?

Partners include Heimdall Power, Prisma Photonics, Sentrisense, and Smart Wires for sensors, beacon systems, and software.

How is the PG&E DLR/AHM demonstration funded for PCG?

The demonstration is funded through PG&E's electric R&D budget under California's EPIC public purpose program.

What near‑term benefits could PCG shareholders expect from the DLR/AHM trial?

The company says the tools aim to unlock capacity, reduce congestion, and improve reliability, but no quantified shareholder savings or timelines were provided.

Where can investors follow results from PG&E's PCG DLR/AHM demonstration?

PG&E will gather data during the demonstration; investors can monitor company updates and the PG&E innovation webpages for published findings.