AEP Ohio Partners to Bring $4.2B in New Electric Infrastructure in Appalachian Ohio Without Raising Customer Rates

Rhea-AI Summary

AEP (NYSE:AEP) announced a planned partnership with the U.S. Department of Energy and SB Energy to support a $4.2 billion buildout of new 765-kV transmission infrastructure for a planned 10-gigawatt data center campus at the former Piketon gaseous diffusion plant in Appalachian Ohio.

SB Energy has committed to funding the $4.2 billion to help avoid raising transmission rates for Ohio customers, and AEP Ohio expects power flows to begin in 2029. Initial route planning, public engagement, and Ohio Power Siting Board permitting are underway.

Positive

• $4.2 billion transmission investment funded by SB Energy
• Planned 10 GW data center campus at Piketon
• Targeted commercial service: power flowing in 2029

Negative

• Project is conditional on Ohio Power Siting Board approvals
• Permitting requires public input and environmental studies, risking delays
• Cost-recovery approach remains to be filed with regulators

News Market Reaction – AEP

-2.38%

-2.38% Session close to close

In the Mar 20 session, AEP declined 2.38%, reflecting a moderate negative market reaction.

Data tracked by StockTitan Argus on the day of publication.

Market Context

This announcement highlights a major growth-oriented initiative: SB Energy plans to fund $4.2 billio...

Analysis

This announcement highlights a major growth-oriented initiative: SB Energy plans to fund $4.2 billion in new 765‑kV transmission to support a planned 10‑gigawatt data center campus in Appalachian Ohio, with AEP Ohio expecting power to begin flowing in 2029. The structure aims to avoid raising transmission rates for residents while adding high-voltage infrastructure. Against recent history of data center and grid projects, investors may watch regulatory approvals, construction milestones, and any financing steps under AEP’s $10,000,000,000 shelf.

Key Figures

New transmission investment: $4.2 billion Data center campus size: 10 gigawatts Transmission voltage: 765 kV +4 more

7 metrics

New transmission investment $4.2 billion SB Energy-funded transmission infrastructure in Appalachian Ohio

Data center campus size 10 gigawatts Planned data center capacity at former Piketon plant site

Transmission voltage 765 kV New high-voltage lines to serve data center development

Comparison voltage 345 kV Baseline line capacity used for comparison to 765‑kV

Energy transfer multiple 6x 765‑kV line energy capacity vs 345‑kV line

First 765‑kV use 1969 Year AEP pioneered 765‑kV transmission technology

Power start date 2029 Expected start of power flow to Piketon data center site

Historical Context

5 past events · Latest: Mar 17 (Neutral)

Pattern 5 events

Date	Event	Sentiment	24h Move	Catalyst
Mar 17	Leadership changes	Neutral	-0.4%	Appalachian Power leadership transition and reiteration of 2026–2030 investment plan.
Mar 06	Leadership change	Neutral	-0.1%	Appointment of new president and COO for AEP Texas to support growth.
Feb 23	Data center project	Positive	+2.1%	Amazon-backed data center with upgrades not charged to existing customers.
Feb 16	Transmission approval	Positive	+0.2%	PJM approval for major 765‑kV transmission build-out in central Ohio.
Feb 16	JV transmission deal	Positive	+0.2%	Transource–FirstEnergy JV to construct ~300 miles of 765‑kV lines and upgrades.

24h Move is the share-price change in the day after each event; other market factors may also have contributed.

Pattern Detected

Operational and infrastructure news has generally seen modest price moves, with some positive alignment on growth projects but occasional divergence on leadership updates.

Recent Company History

In the last month, AEP’s news flow has centered on leadership changes and grid investments. On Feb 23, a SWEPCO-Amazon data center project with customer-funded upgrades saw a +2.06% move, reflecting a favorable response to growth tied to reliability. Earlier in February, major 765‑kV transmission approvals in Ohio coincided with a small gain of 0.23%. Leadership appointments in Texas and at Appalachian Power on Mar 6 and Mar 17 drew slight negative reactions. Today’s large Ohio data center infrastructure plan builds on this grid-and-data-center theme.

Key Terms

765-kv, 345-kv, gigawatt

3 terms

765-kv technical

"new 765-kilovolt (kV) electric transmission infrastructure to serve data center"

A 765-kV line is a very high-voltage electrical transmission line that carries power over long distances; think of it as a multi-lane highway for electricity that moves large amounts of energy with lower losses than smaller lines. For investors, the presence or planned construction of 765-kV infrastructure signals big capital spending, greater transmission capacity and reliability, and regulatory scrutiny that can affect utility costs, project returns and regional power markets.

345-kv technical

"765-kV lines are powerful and can move six times more energy than a 345-kV line"

A 345-kV line is an electrical transmission line or system rated to carry electricity at 345 kilovolts (345,000 volts), commonly used to move large amounts of power between regions or to connect power plants to the grid. For investors, it signals major infrastructure with high capacity and regulatory, construction and maintenance costs that can affect utility earnings and reliability—think of it as a highway designed for heavy, long-distance traffic in the power network.

gigawatt technical

"A 10-gigawatt data center campus is planned for the site"

A gigawatt is a unit of power equal to one billion watts, used to describe how much electricity can be produced or used at a given moment. For investors, gigawatts signal the scale of power projects or generation capacity—similar to saying a factory can run the equivalent of hundreds of thousands of homes at once—which affects revenue potential, project valuation, grid impact and a company’s competitive position in the energy market.

AI-generated analysis. How Rhea-AI works. Not financial advice.

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GAHANNA, Ohio, March 20, 2026 /PRNewswire/ -- The U.S. Department of Energy, SB Energy and AEP Ohio today announced planned multi-billion-dollar investments in advanced digital and energy infrastructure to support data center growth and drive economic development in Appalachian Ohio. The investments, when approved, will include new 765-kilovolt (kV) electric transmission infrastructure to serve data center development at the site of the former gaseous diffusion plant in Piketon, Ohio. A 10-gigawatt data center campus is planned for the site. SB Energy is committed to paying for the $4.2 billion in new transmission investments to help avoid increases to transmission rates for Ohio residents. AEP Ohio expects power to begin flowing to the site in 2029.

"Ohio is experiencing some of the fastest electricity demand growth in the nation, driven by data centers. AEP Ohio is proud to have brought together our experienced team, the U.S. Department of Energy and SB Energy to develop this framework, and we celebrate the potential this investment has to help Pike County and Appalachian Ohio grow," said Marc Reitter, AEP Ohio president. "The new transmission facilities are essential to powering this project and will unlock billions of dollars in regional investment. I am especially proud that our teams were able to develop a plan that supports economic development while protecting our ratepayers from the costs associated with this new infrastructure."

AEP pioneered the use of 765-kV transmission technology in 1969 to more efficiently deliver electricity to customers. Since then, AEP has grown to be the nation's leader in 765-kV transmission lines, owning and operating lines both within and outside its service territory. The company has built the largest transmission network in the country, owning and operating more high voltage lines than any other utility company. The 765-kV lines are powerful and can move six times more energy than a 345-kV line.

Initial transmission line route planning is underway and AEP Ohio is preparing to engage with community members and landowners to solicit feedback. The Ohio Power Siting Board will oversee the permitting of any new transmission lines, and the permitting process requires public input, environmental impact studies and socioeconomic and land use analysis.

AEP Ohio and SB Energy will engage with regulators and stakeholders to provide additional details on the projects and the proposed cost-recovery approach in upcoming regulatory filings.

About AEP Ohio
AEP Ohio is based in Gahanna, Ohio, and is a unit of American Electric Power. AEP Ohio provides electricity to 1.5 million customers across 61 counties. News and information about AEP Ohio can be found at AEPOhio.com.

About AEP
American Electric Power (Nasdaq: AEP) is committed to improving our customers' lives with reliable, affordable power. We expect to invest $72 billion from 2026 through 2030 to enhance service for customers and support the growing energy needs of our communities. Our nearly 17,000 employees operate and maintain the nation's largest electric transmission system with 40,000 line miles, along with more than 252,000 miles of distribution lines to deliver energy to 5.6 million customers in 11 states. AEP also is one of the nation's largest electricity producers with approximately 30,000 megawatts of diverse owned and contracted generating capacity. We are focused on safety and operational excellence, creating value for our stakeholders and bringing opportunity to our service territory through economic development and community engagement. Our family of companies includes AEP Ohio, AEP Texas, Appalachian Power (in Virginia, West Virginia and Tennessee), Indiana Michigan Power, Kentucky Power, Public Service Company of Oklahoma, and Southwestern Electric Power Company (in Arkansas, Louisiana, east Texas and the Texas Panhandle). AEP also owns AEP Energy, which provides innovative competitive energy solutions nationwide. AEP is headquartered in Columbus, Ohio. For more information, visit aep.com.

 

View original content to download multimedia:https://www.prnewswire.com/news-releases/aep-ohio-partners-to-bring-4-2b-in-new-electric-infrastructure-in-appalachian-ohio-without-raising-customer-rates-302719945.html

SOURCE AEP Ohio

FAQ

What did AEP (AEP) announce about the $4.2 billion Piketon transmission project on March 20, 2026?

AEP announced a planned partnership to support a $4.2 billion 765-kV transmission buildout for Piketon. According to the company, SB Energy committed to fund the transmission to avoid raising Ohio transmission rates and initial planning is underway.

How large is the planned data center campus at the Piketon site tied to AEP's March 20, 2026 announcement?

The Piketon site is planned as a 10-gigawatt data center campus. According to the company, the campus will be served by new 765-kV transmission to support significant data center demand.

When does AEP expect power to begin flowing to the Piketon data center site (AEP)?

AEP expects power to begin flowing to the site in 2029. According to the company, that timeline follows route planning, permitting, and regulatory filings with Ohio authorities.

Will Ohio customers face higher transmission rates for AEP's $4.2 billion project announced March 20, 2026?

The company says SB Energy will pay for the $4.2 billion transmission investments to help avoid raising transmission rates for Ohio residents. According to the company, cost recovery details will be provided in regulatory filings.

What regulatory steps are required for AEP's Piketon transmission lines announced March 20, 2026?

New transmission permitting is subject to the Ohio Power Siting Board and public input. According to the company, the process requires environmental impact studies, socioeconomic and land use analysis.

How will AEP engage local communities about the Piketon transmission project (AEP)?

AEP Ohio plans to engage community members and landowners for feedback during initial route planning. According to the company, outreach will inform permitting and route decisions ahead of filings.