The Audit Committee reviews financial statements, accounting practices and policies, auditing processes and the results of internal and external audits and related matters. It also oversees financial risk management and assesses internal controls. In 2009, the committee was consolidated with the Audit Committee of Hydro Ottawa Limited to improve the efficiency of committee oversight. Its membership also includes representatives of the Board of Directors of Hydro Ottawa Limited.

The Investment Review Committee, created by the Board of Directors effective April 2010, is responsible for assisting management and the Board of Directors in the review and pursuit of business development, acquisition and investment opportunities. In carrying out these functions, the Committee focuses on the consistency of opportunities with strategic plans and investment guidelines, the maximization of shareholder value and the management of risk.

The Nominating Committee, with the assistance of outside consultants, identifies and evaluates potential candidates for appointment as Directors. The Nominating Committee makes recommendations to the shareholder (represented by Ottawa City Council) for the appointment of directors.

The Strategic Initiatives Oversight Committee, created by the Board of Directors effective November 2013, is responsible for assisting the Board of Directors in guiding management and providing support and focus for large-scale capital project efforts as identified by the Board from time to time.