Flynn MP Ken O'Dowd said Mr Joyce as Deputy Prime Minister would take a new look at the proposed Collinsville coal-fired power station, which has stalled at the business case stage for years.
Mr Joyce will take the reigns as Scott Morrison's Deputy, forcing the PM to reshuffle part of his frontbench.
Barnaby Joyce has been chosen as the next leader of the Nationals.
"It is not Barnaby policy - it's Nationals policy", he said, arguing that his focus would be on getting the best deal for rural Australia.
"We will be keen to make contact with a new minister for infrastructure, transport and regional development, if there is one", Mr Moore said. Given he (Mr Morrison) can not be here physically, I will hold that chair.
Joyce reportedly won the party room ballot to oust Michael McCormack from the top spot, after days of speculation the Nationals party was beset by yet another leadership crisis.
Ms Davies said she had enjoyed a good working relationship with now-dumped leader Michael McCormack, adding that leadership changes were destabilising to parties.
Confronting the scandals which saw him lose his job in February 2018, Mr Joyce rejected any allegations of sexual harassment, which he described as "spurious and defamatory", with an internal investigation of the claims at the time being unable to reach a conclusion.
"People don't want to hear us talking about ourselves and having leadership challenges", she said.
"I think he's done a good job for the last three-and-a-half-years", she said.
"I'm reminded by that by the people that I love dearly - my four daughters and my two sons and Vikki".
In Question Time on Tuesday, Labor MP for Franklin in Tasmania, Julie Collins, asked Mr Joyce how he responds to the concerns of women in agriculture.
"I have always been upfront about my view".
McCormack said he was disappointed with the result but wished Barnaby Joyce well in the role.
"It is a great honour to be elected to the leadership of our great party and I know that Barnaby Joyce understands this responsibility and will work hard to give voice to and represent the interests of those Australians who live outside our capital cities".
Morrison congratulated Joyce on his elevated role, saying in a statement that they shared a "passion for ensuring our regions and rural communities thrive".