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Hydro One (HRNNF) targets $100M Orléans transmission upgrade by 2029

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Form Type
6-K

Rhea-AI Filing Summary

Hydro One Limited filed a regulatory application with the Ontario Energy Board seeking approval to build the Orléans Area Reinforcement Project near Ottawa. The plan involves a new 11-kilometre 115-kilovolt transmission line and conversion of an existing 115-kV line to 230-kV.

The project represents an approximately $100 million investment aimed at increasing capacity, improving regional transfer capability and strengthening reliability, with expected in-service timing by 2029. Hydro One highlights growing electricity demand and the need for system upgrades to support economic growth in the region and province.

The company describes its broader scale with $39.7 billion in assets and $9 billion in 2025 annual revenues, serving 1.5 million customers and investing $3.4 billion in its transmission and distribution networks in 2025.

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Project investment $100 million Orléans Area Reinforcement Project estimated cost
New transmission line length 11 kilometres New 115-kV line between Hawthorne TS and Orléans TS
Voltage upgrade 115-kV to 230-kV Conversion of existing transmission line between two stations
Project in-service target 2029 Expected in-service date for Orléans project
Total assets $39.7 billion Assets as at December 31, 2025
Annual revenues $9 billion Hydro One revenues in 2025
Capital investment $3.4 billion 2025 investment in transmission and distribution networks
Procurement spend $3.0 billion Goods and services purchased in 2025
leave-to-construct application regulatory
"announced it has filed a leave-to-construct application with the Ontario Energy Board"
Ontario Energy Board regulatory
"filed a leave-to-construct application with the Ontario Energy Board (OEB)"
transmission line technical
"construction of a new 11-kilometre 115-kilovolt (kV) transmission line within an existing transmission corridor"
A transmission line is the infrastructure—wires, towers, ducts or cables—that carries electricity or data over long distances from producers to users or networks. Investors care because these lines determine how reliably and cheaply power or communications can be delivered; like a highway for goods, congested or aging lines can cause delays, extra costs, outages or regulatory expenses that affect revenue, maintenance needs and future growth prospects.
forward-looking information regulatory
"This press release may contain “forward-looking information” within the meaning of applicable Canadian securities laws"
Forward-looking information are predictions, plans, estimates or expectations about a company’s future performance, results or events, such as sales forecasts, project timelines, or anticipated costs. It matters to investors because these statements guide expectations but rely on assumptions and uncertain factors—like a weather forecast for a business—so investors should treat them as informed guesses rather than guarantees and consider the risks and possible changes behind the numbers.
regional transfer capability technical
"expected to bolster capacity, improve the system’s regional transfer capability and strengthen reliability"
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Form 6-K: How Foreign Companies Report to the SEC →
 
 

SECURITIES AND EXCHANGE COMMISSION

WASHINGTON, D.C. 20549

 

 

FORM 6-K

 

 

REPORT OF FOREIGN PRIVATE ISSUER

Pursuant to Rule 13a-16 or 15d-16

under the Securities Exchange Act of 1934

For the month of: May 2026

Commission File Number: 333-225519-01

 

 

HYDRO ONE LIMITED

(Translation of Registrant’s name into English)

 

 

483 Bay Street, South Tower, 8th Floor, Toronto Ontario M5G 2P5 Canada

(Address of principal executive offices)

 

 

Indicate by check mark whether the registrant files or will file annual reports under cover of Form 20-F or Form 40-F.

Form 20-F ☐   Form 40-F ☒

 

 
 

SIGNATURE

Pursuant to the requirements of the Securities Exchange Act of 1934, the Registrant has duly caused this report to be signed on its behalf by the undersigned, thereunto duly authorized.

 

HYDRO ONE LIMITED

 

/s/ Cassidy McFarlane

Name: Cassidy McFarlane
Title: General Counsel
Date: May 29, 2026

EXHIBIT INDEX

 

99.1    News Release dated May 29, 2026

Exhibit 99.1

Hydro One seeks approval from the Ontario Energy Board to build the Orléans Area Reinforcement Project

This investment will support economic growth in the Ottawa area

TORONTO, May 29, 2026 – Today, Hydro One Networks Inc. (Hydro One) announced it has filed a leave-to-construct application with the Ontario Energy Board (OEB) to seek approval to build the Orléans Area Reinforcement Project.

The Orléans Area Reinforcement Project includes the construction of a new 11-kilometre 115-kilovolt (kV) transmission line within an existing transmission corridor between Hawthorne Transformer Station (TS) and Orléans TS, located in the Greater Ottawa Area. The project also includes converting an existing 115-kV transmission line between the two stations to 230-kV. The approximately $100 million investment in the region is expected to bolster capacity, improve the system’s regional transfer capability and strengthen reliability. The project is expected to be in service by 2029.

“Ontario’s electricity demand is increasing, and we must continue to invest in the system to meet this demand and support growth,” said Ryan Docherty, Executive Vice President, Capital Portfolio Delivery, Hydro One. “This project will support a reliable supply of power to Canada’s capital, strengthen reliability and create a stronger and more secure system to meet the needs of the region and province.”

Filing a leave-to-construct application under Section 92 of the Ontario Energy Board Act, 1998 is required for electricity transmitters in Ontario to obtain approval from the OEB to construct, expand or reinforce the transmission system. The application includes details on the project’s route, design, timing and cost.

For information, visit the Orléans Area Reinforcement Project webpage.

- 30 -

Hydro One Limited (TSX: H)

Hydro One Limited, through its wholly-owned subsidiaries, is Ontario’s largest electricity transmission and distribution provider with 1.5 million valued customers, $39.7 billion in assets as at December 31, 2025, and annual revenues in 2025 of $9 billion.

Our team of 9,600 skilled and dedicated employees proudly build and maintain a safe and reliable electricity system which is essential to supporting strong and successful communities. In 2025, Hydro One invested $3.4 billion in its transmission and distribution networks, and supported the economy through buying $3.0 billion of goods and services.

We are committed to the communities where we live and work through community investment, sustainability and diversity initiatives.

Hydro One Limited’s common shares are listed on the TSX and certain of Hydro One Inc.’s medium term notes are listed on the NYSE. Additional information can be accessed at www.hydroone.com/, www.sedarplus.com or www.sec.gov.

For More Information

For more information about everything Hydro One, please visit www.hydroone.com where you can find additional information including links to securities filings, historical financial reports, and information about the Company’s governance practices, corporate social responsibility, customer solutions and further information about its business.

Forward-looking statements and information:

This press release may contain “forward-looking information” within the meaning of applicable Canadian securities laws and “forward-looking statements” within the meaning of applicable U.S. securities laws (collectively, “forward-looking information”). Statements containing forward-looking information are made pursuant to the “safe harbour” provisions of applicable Canadian and U.S. securities laws. Words such as “expect”, “anticipate”, “intend”, “attempt”, “may”, “plan”, “will”, “can”, “believe”, “seek”, “estimate”, and variations of such words and similar expressions are intended to identify such forward-looking information. These statements are not guarantees of future performance or actions and involve assumptions and risks and uncertainties that are difficult to predict. Therefore, actual outcomes and results may differ materially from what is expressed, implied or forecasted in such forward-looking information. Some of the factors that could cause actual results or outcomes to differ materially from the results expressed, implied or forecasted by such forward-looking information, including some of the assumptions used in making such statements, are discussed more fully in Hydro One’s filings with the securities regulatory authorities in Canada, which are available on SEDAR+ at www.sedarplus.com. Hydro One does not intend, and it disclaims any obligation, to update any forward-looking information, except as required by law.

Source: View Original Filing on SEC EDGAR

FAQ

What is Hydro One (HRNNF) proposing in the Orléans Area Reinforcement Project?

Hydro One is proposing the Orléans Area Reinforcement Project, including a new 11-kilometre 115-kV transmission line and conversion of an existing 115-kV line to 230-kV. The goal is to boost capacity, transfer capability and reliability in the Greater Ottawa Area.

How much will Hydro One (HRNNF) invest in the Orléans Area Reinforcement Project?

Hydro One expects to invest approximately $100 million in the Orléans Area Reinforcement Project. This capital is intended to increase regional transmission capacity, strengthen reliability, and support anticipated economic and electricity demand growth in the Ottawa region and surrounding area.

When is the Orléans Area Reinforcement Project expected to be in service for Hydro One (HRNNF)?

The Orléans Area Reinforcement Project is expected to be in service by 2029. This timeline depends on receiving Ontario Energy Board approval and completing construction of the new 115-kV line and the conversion of the existing line to 230-kV.

What regulatory step did Hydro One (HRNNF) take for the Orléans project?

Hydro One filed a leave-to-construct application under Section 92 of the Ontario Energy Board Act, 1998. This application seeks Ontario Energy Board approval to construct and reinforce transmission facilities required for the Orléans Area Reinforcement Project in the Greater Ottawa Area.

How large is Hydro One (HRNNF) in terms of assets and revenue?

Hydro One reports $39.7 billion in assets as at December 31, 2025 and 2025 annual revenues of $9 billion. The company serves about 1.5 million customers and invested $3.4 billion in its transmission and distribution networks during 2025.

How does Hydro One (HRNNF) support the Ontario economy more broadly?

Hydro One supports the Ontario economy by investing heavily in its networks and purchasing goods and services. In 2025, it invested $3.4 billion in transmission and distribution infrastructure and spent $3.0 billion on goods and services from suppliers across the region.

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