The Labor Party is strongly opposed to a 99-year leasing of 49 per cent of the electricity network, which the state government expects will raise about $13 billion for infrastructure projects, including $6 billion that has been earmarked for regional areas.

Mr Grant said he stood by the proposed lease because of the financial windfall it would provide.

"A 49 per cent lease would bring a $6 billion yield for infrastructure projects in regional NSW, provide 100 per cent protection for Essential Energy and make electricity cheaper. That's a win, win, win for voters," he said.

"The Labor candidate and deputy opposition leader [Linda Burney] said they would oppose the sale but where would they get the money for infrastructure projects?"

The Dubbo MP said he had a copy of a document from a Labor policy committee that listed an annual land tax as a possible funding source. He said without the financial windfall offered by the lease, Labor would have to introduce new taxes to fund projects.

Mr Lawrence dismissed the allegations as scare tactics.

"The document I suspect Troy is talking about is from a Labor Party internal policy forum, where members have the opportunity to present ideas. Liberal Party MPs all sent out press releases on this in March and there was nothing to it," he said.

Mr Grant claims the $6 billion worth of projects would be a game changer for NSW but Mr Lawrence said his party wasn't interesting in selling off assets for what he calls short-term "political blackmail".

"The distribution network makes $1.5 billion a year so there would be a future shortfall there," the Labor candidate said.

"Labor isn't going to engage in short-term blackmail. Why does the power network have to be sold off to fund infrastructure. Labor would look to responsibly invest in infrastructure and while our detailed policies haven't been released yet, there have been a number of commitments made by John Robertson."

Mr Lawrence said they included the completion of the Southwest and Northwest rail links, the M1 to M2 link, and M4 to M5 link as well as upgrades to regional roads.

Meanwhile Mr Grant guaranteed there would be no further additions to the lease, rejecting allegations from Labor that the Baird government would try to sell off the remaining 51 per cent after the election.

"If returned, the National Party will hold the balance of power in the Coalition and we have said there will only be a 49 per cent lease. We wouldn't consider anything more unless the community wanted it," Mr Grant said.

"The National Party has always been opposed to the full privatisation of the network but the partial lease provides $6 billion for regional NSW."