EX-99.1

OAKVILLE, ON, April 27, 2015 /CNW/—Algonquin Power& Utilities Corp. (“APUC” or the “Company”) (TSX:AQN) today announced that a Special Committee established by the Company’s Board of Directors has completed its internal review into the remaining anonymous allegations relating to APUC’s workplace environment and is satisfied with the outcome.

Upon receipt of these allegations, counsel to the Special Committee retained Knightsbridge—a firm that specializes in evaluating and optimizing organizational and leadership behaviour—to conduct a review of APUC’s organizational and leadership culture. This review is expected to result in initiatives to enhance the organization.

The Knightsbridge review is now complete and the Board is satisfied with the process and its findings.

Algonquin Power & Utilities Corp. is a $4.1 billion North American diversified generation, transmission and distribution utility. The distribution business group operates in the United States and provides rate regulated water, electricity and natural gas utility services to over 488,000 customers. The non-regulated generation business group owns or has interests in a portfolio of North American based contracted wind, solar, hydroelectric and natural gas powered generating facilities representing more than 1,050 MW of installed capacity. The transmission business group invests in rate regulated electric transmission and natural gas pipeline systems in the United States and Canada. Algonquin Power & Utilities delivers continuing growth through an expanding pipeline of renewable energy development projects, organic growth within its regulated distribution and transmission businesses, and the pursuit of accretive acquisitions. Common shares and preferred shares are traded on the Toronto Stock Exchange under the symbols AQN, AQN.PR.A and AQN.PR.D. Visit Algonquin Power & Utilities at www.AlgonquinPowerandUtilities.com and follow us on Twitter @AQN_Utilities.

Certain statements included in this news release contain information that is forward-looking within the meaning of certain securities laws, including information and statements regarding prospective financial position. These statements are based on factors or assumptions that were applied in drawing a conclusion or making a forecast or projection, including assumptions based on historical trends, current conditions and expected future developments. Since forward-looking statements relate to future events and conditions, by their very nature they require making assumptions and involve inherent risks and uncertainties. APUC cautions that although it is believed that the assumptions are reasonable in the circumstances, these risks and uncertainties give rise to the possibility that actual results may differ materially from the expectations set out in the forward-looking statements. Material risk factors include those set out in the management’s discussion and analysis section of APUC’s most recent annual report, quarterly report, and APUC’s Annual Information Form. Given these risks, undue reliance should not be placed on these forward-looking statements, which apply only as of their dates. Other than as specifically required by law, APUC undertakes no obligation to update any forward-looking statements or information to reflect new information, subsequent or otherwise.

For further information: Kelly Castledine, Algonquin Power & Utilities Corp., 354 Davis Road, Oakville, Ontario, L6J 2X1, Telephone: (905) 465-4500, Website: www.AlgonquinPowerandUtilities.com, Twitter: AQN_Utilities