Media Advisory: TransAlta Renewables First Quarter 2018 Results and Annual Meeting of Shareholders

CALGARY, Alberta (April 11, 2018) - TransAlta Renewables Inc. ('TransAlta Renewables') (TSX: RNW) will release its first quarter 2018 results before market open on Thursday, May 10, 2018.

TransAlta Renewables will hold its Annual Meeting of Shareholders the same morning at 10:00 a.m. MT (12:00 p.m. ET) at the Kahanoff Centre, Suite 201, located at 105-12^th Avenue SE, in Calgary, Alberta. The Annual Meeting of Shareholders will be broadcast via webcast. To access the broadcast, please visit http://www.transaltarenewables.com/investors/events-and-presentations.

About TransAlta Renewables Inc.

TransAlta Renewables is among the largest of any publicly traded renewable independent power producers ('IPP') in Canada. Our asset platform and economic interests are diversified in terms of geography, generation and counterparties and consist of interests in 18 wind facilities, 13 hydroelectric facilities, seven natural gas generation facilities and one natural gas pipeline, representing an ownership interest of 2,316 MW of net generating capacity, located in the provinces of British Columbia, Alberta, Ontario, Québec, New Brunswick, the State of Wyoming and the State of Western Australia. Our objectives are to (i) create stable, consistent returns for investors through the ownership of, and investment in, highly contracted renewable and natural gas power generation and other infrastructure assets that provide stable cash flow primarily through long-term contracts with strong counterparties; (ii) pursue and capitalize on strategic growth opportunities in the renewable and natural gas power generation and other infrastructure sectors; (iii) maintain diversity in terms of geography, generation and counterparties; and (iv) pay out 80 to 85 per cent of cash available for distribution to the shareholders of the Company on an annual basis.

For more information:

Investor Inquiries: Media Inquiries:

Sally Taylor Stacey Hatcher

Manager, Investor Relations Manager, Communications

Phone: [phone] in Canada and U.S. Toll-free media number: 1-855-255-9184

Email: [e-mail] Email: [e-mail]