Penrith MP Stuart Ayres says the $12 million grant that he promised would build a sports centre at Penrith Panthers days before the 2015 state election "delivers" on his campaign promise, despite the project not including any sports facilities.

Mr Ayres told reporters on Monday the $12 million grant was an "election commitment in 2015 and this government delivers on its election commitments".

NSW Treasurer Dominic Perrottet and Minister for Sport Stuart Ayres discuss the demolition of the stadium. Credit:James Brickwood

The former NSW sports minister was answering questions for the first time about the project since the Herald revealed that he pushed for the conference centre in his electorate to be funded from his Sports portfolio despite it having no relevance to sport.

"[It was an] election commitment we made in 2015," Mr Ayres said at a press conference in Nepean Hospital. "[Panthers are] a recipient of government grants and have been for a long time and I suspect will be well into the future."