Press Release

DBRS Rates Hydro One New Issue at A (high), Stable Trend

Utilities & Independent Power
December 21, 2011

DBRS has today assigned a rating of A (high) with a Stable trend to Hydro One Inc.’s (Hydro One) proposed issuance of $100 million of 4.00% medium-term notes (the Notes), maturing on December 22, 2051. The Notes are expected to settle on December 22, 2011.

The Notes are issued pursuant to the Short Form Base Shelf Prospectus dated August 23, 2011, and will rank pari passu with all of Hydro One’s existing and future unsecured and unsubordinated indebtedness. The net proceeds from the offering will be used for general corporate purposes.

Notes:
All figures are in Canadian dollars unless otherwise noted.

The applicable methodology is Rating Companies in the North American Energy Utilities (Electric and Natural Gas) Industry, which can be found on the DBRS website under Methodologies.