Advisory: TransAlta first quarter 2010 conference call and annual shareholder meeting

Apr 7, 2010

CALGARY, Alberta (April 7, 2010) – TransAlta Corporation (TSX: TA; NYSE: TAC) will release its first quarter 2010 results before market open on Tuesday, April 27, 2010. A conference call and webcast to discuss the results will be held for investors, analysts, members of the media and other interested parties the same day beginning at 9:00 a.m. Mountain (11:00 a.m. Eastern). The media will be invited to ask questions following investors and analysts.

Please contact the conference operator five minutes prior to the call, noting “TransAlta Corporation” as the company and “Jennifer Pierce” as moderator.

Dial-in number – Q1 results:

For local Toronto participants: 1-416-340-8061
Toll-free North American participants: 1-866-225-0198

A link to the live webcast will be available here. If you are unable to participate in the call, the instant replay is accessible at 1-800-408-3053 with TransAlta pass code 2235047. A transcript of the broadcast will be posted on TransAlta’s website once it becomes available.

On Thursday, April 29, TransAlta will hold its Annual Meeting of Shareholders at 11:00 a.m. Mountain (1:00 p.m. Eastern) at the Hyatt Regency, Imperial Ballroom, Calgary Alberta. The Annual Meeting will be broadcast via webcast and conference call. To access the broadcast, please visit here or use the dial-in information provided below.

Dial-in number – Annual Meeting:

Toll-free North American participants – 1 888-886-7786

TransAlta is a power generation and wholesale marketing company focused on creating long-term shareholder value. TransAlta maintains a low-to-moderate risk profile by operating a highly contracted portfolio of assets in Canada, the United States and Australia. TransAlta’s focus is to efficiently operate our biomass, geothermal, wind, hydro, natural gas and coal facilities in order to provide our customers with a reliable, low-cost source of power. For 100 years, TransAlta has been a responsible operator and a proud contributor to the communities where we work and live. TransAlta is recognized for its leadership on sustainability by the Dow Jones Sustainability North America Index, the FTSE4Good Index and the Jantzi Social Index.

This news release may contain forward-looking statements, including statements regarding the business and anticipated financial performance of TransAlta Corporation. These statements are based on TransAlta Corporation’s belief and assumptions based on information available at the time the assumption was made. These statements are subject to a number of risks and uncertainties that may cause actual results to differ materially from those contemplated by the forward-looking statements. Some of the factors that could cause such differences include legislative or regulatory developments, competition, global capital markets activity, changes in prevailing interest rates, currency exchange rates, inflation levels and general economic conditions in geographic areas where TransAlta Corporation operates.

Note: All financial figures are in Canadian dollars unless noted otherwise.

For more information:

Media Inquiries:

Marcy McAuley
Senior Advisor, External Relations
Phone: (403) 267-3639

Investor Inquiries:

Jess Nieukerk
Manager, Investor Relations
Phone: (403) 267-3607