Related Party Transactions

12 Months Ended

Dec. 31, 2017

Related-Party Transactions

Details of the Corporation’s principal operating subsidiaries at Dec. 31, 2017 are as follows:



Subsidiary	Country	Ownership (per cent)	Principal activity
TransAlta Generation Partnership	Canada	100	Generation and sale of electricity
TransAlta Cogeneration, L.P.	Canada	50.01	Generation and sale of electricity
TransAlta Centralia Generation, LLC	US	100	Generation and sale of electricity
TransAlta Energy Marketing Corp.	Canada	100	Energy marketing
TransAlta Energy Marketing (U.S.), Inc.	US	100	Energy marketing
TransAlta Energy (Australia), Pty Ltd.	Australia	100	Generation and sale of electricity
TransAlta Renewables Inc.	Canada	64.0	Generation and sale of electricity

Transactions between the Corporation and its subsidiaries have been eliminated on consolidation and are not disclosed.

Transactions with Key Management Personnel

TransAlta’s key management personnel include the President and CEO and members of the senior management team that report directly to the President and CEO, and the members of the Board.

Key management personnel compensation is as follows:



Year ended Dec. 31	2017	2016	2015
Total compensation	24	20	9
Comprised of:
Short-term employee benefits	14	8	8
Post-employment benefits	2	2	2
Termination benefits	—	—	1
Share-based payments	8	10	(2	)