Greens preference 'kicking' Liberals out in NSW

The NSW Greens are urging voters to ditch the coalition government and are preferencing Labor over Liberal candidates at polling booths across the state this weekend.

Greens MP Jenny Leong says Labor leader Chris Minns, "isn't quite as bad", but needs to do more about climate and housing.

"We're proudly preferencing, as we always do, progressive parties and are preferencing the Labor Party over the Liberal Party," Ms Leong said on Tuesday.

"It is absolutely critical that we keep this Liberal-coalition government out, and the Greens preferences reflect that."

Despite Treasurer Matt Kean positioning himself as progressive on climate action, his "greenwashing" had not fooled the electorate, she said.

"We know that he is as committed as the Liberals and Nationals generally in his love and obsession with coal and gas," she said.

NSW has an optional preferential voting system, so voters only need to put one number next to one candidate for their ballot to count.

This week Nationals MP Wes Fang raised the issue of Liberal election material preferencing Greens candidates over Labor, suggesting deals had been struck between the two unlikely allies, which Premier Dominic Perrottet denied.

The Greens are hoping to retain three lower house seats - Newtown, held by Ms Leong, Ballina held by Tamara Smith and the inner-Sydney seat of Balmain where Kobi Shetty is hoping to replace the retiring Jamie Parker as the Greens MP in the former Labor stronghold.

The party is also hopeful of gaining ground with 26-year-old Izabella Antoniou in another inner-city seat of Summer Hill, where they are preferencing Animal Justice Party candidate Sandra Haddad above Labor incumbent Jo Haylen. 

Lynda-June Coe, a Wiradjuri and Badu Island woman running for the Greens in the upper house, said the coalition is out of touch with communities "west of the divide".

"If they're not having conversations with those communities then they don't have a clue what's going on in those areas," she said.

Ms Coe said Indigenous communities in particular are battling a lack of access to services like education and health care.

"As a regional woman myself, I've experienced firsthand the lack of services within those particular areas, and you go further west to Dubbo and it becomes more and more scarce and those communities are at the forefront of suffering."

If the election fails to deliver a majority government on Saturday, Ms Leong expects Mr Minns and Mr Perrottet to change their tune after saying they wouldn't strike deals with the cross bench to form government.

"When we get into that parliament after the election, everyone is going to have to do the numbers," she said.

"And if the Greens offer them the numbers to pass legislation, then I would expect they'll want to come and talk to us."