​​​​​​​​​​​​​

Hydro One Inc. Credit Ratings

Agency Long Term Debt Short Term Debt
​DBRS Limited ​A(high) R-1(low)​
​Moody's Investors Service A3 Prime-2​
S&P Global Ratings ​A ​A-1(mid)

Short-term liquidity is provided through Hydro One Inc.'s commercial paper program, which is authorized to issue up to $2.3 billion. 

Debt Issuance Programs

L​ong-Term Debt


Domestic Market

Long-term financing is provided by Hydro One Inc.'s medium term note program which was renewed on March 27, 2026. 

​Issue Date Par Amount ($ Millions) Maturity Date Coupon Label​
27-Oct-22 750 27-Jan-28 4.91% —
05-Apr-19 550 05-Apr-29​ 3.02% —
27-Jan-23 55011 30-Nov-29 3.93% Sustainability​
28-Feb-20 400 28-Feb-30​ 2.16% —
01-Jun-00 40014 03-Jun-30​ 7.35% —
09-Oct-20 400 16-Jan-31​ 1.69% —
17-Sep-21 450 17-Sep-31 2.23% —
22-Jun-01 5001 01-Jun-32​ 6.93% —
25-Aug-25 450 25-Aug-32​ 3.94% Green
27-Jan-23 450 27-Jan-33 4.16% Sustainability​
21-Nov-25 1,200 21-Nov-33 3.90% Green​
31-Jan-03 3852 31-Jan-34​ 6.35% —
12-Jan-24 550 01-Mar-34​ 4.39% Green
20-Aug-24 1,07512 04-Jan-35​ 4.25% Green
25-Aug-25 300 24-Aug-35 4.30% Green
19-May-05 6004​ 20-May-36 5.36% —
13-Mar-07 400 13-Mar-37 4.89% —
03-Mar-09 300 03-Mar-39 6.03% —
16-Jul-09 5005​ 16-Jul-40 5.49% —
26-Sep-11 300 26-Sep-41 4.39% —
22-Apr-03 3153​ 22-Apr-43 6.59% —
09-Oct-13 435 09-Oct-43 4.59% —
06-Jun-14 350 06-Jun-44 4.17% —
24-Feb-16 350 23-Feb-46 3.91% —
19-Oct-06 3256
 19-Oct-46​ 5.00% —
18-Nov-16 450 18-Nov-47 3.72% —
​26-Jun-18 750​ ​25-Jun-49 3.63% —
​28-Feb-20 5009 ​28-Feb-50 2.71% —
​05-Apr-19 250​ ​05-Apr-50 3.64% —
17-Sep-21 450 15-Sep-51​ 3.10% —
22-Dec-11 2257
 22-Dec-51​ 4.00% —
27-Jan-23 67513
 27-Jan-53 4.46% Sustainability
30-Nov-23 1,00010
 30-Nov-54 4.85% Green
25-Aug-25 350 25-Aug-55​ 4.95% Green
21-Nov-25 400 21-Nov-56​ 4.80% Green
31-Jul-12 3108
 31-Jul-62​ 3.79% —
29-Jan-14 50 29-Jan-64 4.29% —
Total $17,695


U.S. Market

Long-term financing is provided by Hydro One Inc.'s short form base shelf prospectus that was filed with the Securities & Exchange Commission on August 18, 2025.

​Issue Date Par Amount ($ USD Millions) Maturity Date Coupon Label​
26-May-26 $1,000 30-May-31 4.75% -
Total $1,000
​​​​

1  On September 17, 2002, this issue was re-opened for an additional $200 million, bringing the total outstanding to $500 million.
2 On June 25, 2004 and August 20, 2004, this issue was re-opened for an additional $120 million and $65 million, respectively, bringing the total outstanding to $385 million.
3 On August 24, 2004, this issue was re-opened for an additional $65 million, bringing the total outstanding to $315 million.
4 On April 24, 2006, this issue was re-opened for an additional $250 million, bringing the total outstanding to $600 million.
5 On March 10, 2010, this issue was re-opened for an additional $200 million, bringing the total outstanding to $500 million.
6  On September 13, 2010, this issue was re-opened for an additional $250 million, bringing the total outstanding to $325 million.
7  On May 22, 2012, this issue was re-opened for an additional $125 million, bringing the total outstanding to $225 million.
8 On August 16, 2012, this issue was re-opened for an additional $235 million, bringing the total outstanding to $310 million.
9  On October 9, 2020, this issue was re-opened for an additional $200 million, bringing the total outstanding to $500 million.
10 On December 12, 2023, this issue was re-opened for an additional $100 million, bringing the total outstanding to $500 million. On August 20, 2024, this issue was again re-opened for an additional $500 million, bringing the total outstanding to $1.0 billion.
11 On January 12, 2024, this issue was re-opened for an additional $250 million, bringing the total outstanding to $550 million.
12 On December 11, 2024, this issue was re-opened for an additional $375 million, bringing the total outstanding to $1,075 million.
13 On December 11, 2024, this issue was re-opened for an additional $375 million, bringing the total outstanding to $675 million.
14 Public Debenture. All other long-term debt issues are Medium Term Notes.​

Transfer Agent ​and Registrar


Computershare Trust Company of Canada
11th Floor, 100 University Avenue
Toronto, Ontario  M5J 2Y1
Telephone: 416-263-9200
Fax: 416-981-9777
1-800-564-6253
Website: www.computershare.com




Computershare Trust Company, N.A.
1505 Energy Park Drive
St Paul, MN  55108
Telephone: 1-800-564-6253
Website: www.computershare.com



​

Investor Contacts & Requests

Contact Us

Investor Relations Website Disclaimer

View Disclaimer​
​​