Hydro One Ltd. HRNNF

What this company does

Hydro One owns and operates substantially all of Ontario's electricity transmission network and delivers electricity to approximately 1.5 million customers across the province of Ontario, and to large industrial customers and municipal utilities. Hydro One has approximately $40 billion in assets and had 2025 revenues of approximately $9 billion. Through its subsidiaries, Hydro One Inc. owns and operates approximately 30,000 circuit kilometres of high-voltage transmission lines and approximately 126,000 circuit kilometres of primary low-voltage distribution lines. As at December 31, 2025, Hydro One had approximately 7,200 regular and 1,900 non-regular employees province-wide. Hydro One has three segments: transmission business, distribution business, and other. Hydro One's transmission business represented approximately 60% of its total assets as at December 31, 2025. Hydro One's distribution business represented approximately 38% of its total assets as at December 31, 2025. Its other segment consists principally of its telecommunications business, carried out by its wholly-owned subsidiary Acronym Solutions Inc., which provides telecommunications support for the Company's transmission and distribution businesses.

Written from the business description in Hydro One Ltd's annual report to the U.S. Securities and Exchange Commission, filed 13 February 2026. Every sentence was checked against that document before publication.