Exhibit 99.3

FORM 52-109F1

CERTIFICATE OF ANNUAL FILINGS

I, Robert R. Bennett, President and Chief Executive Officer of Nova Scotia Power Inc., certify the following:

I have reviewed the AIF, if any, financial statements and annual MD&A, including, for greater certainty, all documents and information that are incorporated by reference in the AIF (together, the “annual filings”) of Nova Scotia Power Inc. (the “issuer”) for the financial year ended December 31, 2010.

Based on my knowledge, having exercised reasonable diligence, the annual filings do not contain any untrue statement of a material fact or omit to state a material fact required to be stated or that is necessary to make a statement not misleading in light of the circumstances under which it was made, for the period covered by the annual filings.

Based on my knowledge, having exercised reasonable diligence, the annual financial statements together with the other financial information included in the annual filings fairly present in all material respects the financial condition, results of operations and cash flows of the issuer, as of the date of and for the periods presented in the annual filings.

The issuer’s other certifying officer and I are responsible for establishing and maintaining disclosure controls and procedures (DC&P) and internal control over financial reporting (ICFR), as those terms are defined in National Instrument 52-109 Certification of Disclosure in Issuers’ Annual and Interim Filings, for the issuer.

Subject to the limitations, if any, described in paragraphs 5.2 and 5.3, the issuer’s other certifying officer and I have, as at the financial year end

designed DC&P, or caused it to be designed under our supervision, to provide reasonable assurance that

material information relating to the issuer is made known to us by others, particularly during the period in which the annual filings are being prepared; and

ii.

information required to be disclosed by the issuer in its annual filings, interim filings or other reports filed or submitted by it under securities legislation is recorded, processed, summarized and reported within the time periods specified in securities legislation; and

designed ICFR, or caused it to be designed under our supervision, to provide reasonable assurance regarding the reliability of financial reporting and the preparation of financial statements for external purposes in accordance with the issuer’s GAAP.

5.1 The control framework the issuer’s other certifying officer and I used to design the issuer’s ICFR is the Committee of Sponsoring Organizations of the Treadway Commission (COSO) Internal Control – Integrated Framework.

5.2 N/A

5.3 N/A

The issuer’s other certifying officer and I have

evaluated, or caused to be evaluated under our supervision, the effectiveness of the issuer’s DC&P at the financial year end and the issuer has disclosed in its annual MD&A our conclusions about the effectiveness of DC&P at the financial year end based on that evaluation; and

evaluated, or caused to be evaluation under our supervision, the effectiveness of the issuer’s ICFR at the financial year end and the issuer has disclosed in its annual MD&A

our conclusions about the effectiveness of ICFR at the financial year end based on that evaluation; and

ii.

for each material weakness relating to operation existing at the financial year end

a description of the material weakness;

the impact of the material weakness on the issuer’s financial reporting and its ICFR; and

the issuer’s current plans, if any, or any actions already undertaken, for remediating the material weakness.

The issuer has disclosed in its annual MD&A any change in the issuer’s ICFR that occurred during the period beginning on January 1, 2010 and ended on December 31, 2010 that has materially affected, or is reasonably likely to materially affect, the issuer’s ICFR.

The issuer’s other certifying officer and I have disclosed, based on our most recent evaluation of ICFR, to the issuer’s auditors, and the board of directors or the audit committee of the board of directors any fraud that involves management or other employees who have a significant role in the issuer’s ICFR.

Date: February 11, 2011

/s/ Robert R. Bennett

President and Chief Executive Officer

Nova Scotia Power Inc 6-K