2025 Sustainability report

Powering Ontario's future, together

As the demand for energy rises, we're preparing for what's next by investing in a strong, reliable grid to support the province's growing economy. We operate safely, responsibly and transparently. We deliver innovative solutions and safe, affordable electricity to Ontario communities and businesses as we build a better, brighter future for all.

Download 2025 Sustainability report Sustainability policies

Governance

Strong corporate governance ensures our sustainability approach is fully integrated into Hydro One's strategy and operations, supporting the delivery of long-term, responsible value.

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40%

women directors on our board as of December 31, 2025

490

cases received by our Corporate Ethics Office, highlighting our strong culture of transparency, trust and training

Zero

unresolved well-founded* privacy complaints

*As determined by the Privacy Commissioner of Canada. The term “well-founded” is used by the office of the Privacy Commissioner of Canada when the commissioner has found that an organization has failed to respect a provision of the Personal Information Protection and Electronic Documents Act.

Environment

We're lowering our operational carbon footprint by reducing sulfur hexafluoride (SF₆) emissions, electrifying our light vehicles and improving energy efficiency across our facilities. We continue to increase reliability of the electricity grid, adapt to climate change and support Ontario's biodiversity and natural ecosystems.

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27%

decrease in operations-driven greenhouse gas (GHG) emissions compared to the 2018 baseline

57%

of our sedans and SUVs were upgraded to electric vehicles or hybrids by end of 2025

1M+

customers enrolled in paperless billing, with more than 81,000 joining in 2025

279

hectares of pollinator habitats established since 2015

Social

We're dedicated to fostering safe, inclusive and resilient communities across the province. By actively listening and partnering with Indigenous communities, Canadian companies and our valued employees, we remain focused on our customers' well-being and the communities where we live, work and play.

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Zero

high-energy serious incidents since April 2024

$3,366M

capital investment into the grid

~$216M

total sourceable spend on purchases from Indigenous businesses and materials

91%+

of our procurement spending was with companies based in Canada

Hydro one crew working during the ice storm

Spotlight

A generational ice storm

In March 2025, a destructive, multi-day ice storm swept across Ontario, damaging communities and local infrastructure and leaving many customers without power. Crews worked day and night in extreme conditions and teams across the business came together to keep customers safe and informed throughout restoration efforts.

To support communities in real time, we launched the Ice Storm 2025: Recovery Grant, providing up to $10,000 in funding for 12 First Nations and 38 municipalities. The grant supported local recovery efforts with a total investment of $500,000.

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1.1M+

service restorations

600k+

customers impacted

3,000+

broken distribution poles

170

spills directly related to ice storm damage clean up

Together, across Ontario

Connecting power and possibility

Hydro One's community investment

As the demand for electricity grows across Ontario, we're investing in local energy talent, communities and Indigenous partnerships as we build a better and brighter future, together.

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Powering Indigenous partnerships

Together with First Nation partners across Ontario, we collaborate on all future large-scale transmission lines projects valued at more than $100 million through our First Nation Equity Partnership Model. Learn more about how we're advancing meaningful action on reconciliation, creating generational impact and prosperity.

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