May 5 (Reuters) - TransAlta Corp TA.TO :
* TransAlta reports first quarter 2017 results
* TransAlta Corp says qtrly FFO per share c$0.70
* Qtrly revenue C$578 million versus c$568 million
* TransAlta Corp says qtrly FCF per share c$0.34
* TransAlta Corp -" we remain comfortable with our 2017 guidance for EBITDA, FFO, and FCF" Source text for Eikon: ID:nPn5Gs4y9a Further company coverage: TA.TO