On Saturday, the coalition announced a review into power monopolies in apartments and retirement villages via embedded networks and attacked Labor's long-term $1 billion storage project.
"Yesterday we saw (Labor leader) Chris Minns say that he's not going to provide energy bill relief for consumers in NSW for up to seven years," Energy Minister Matt Kean said.
"They're not interested in protecting or supporting families."
His comments came as opposition education spokeswoman Prue Car used a new report suggesting close to half of teachers in NSW have one foot out the door to attack government inaction on growing teacher shortages.
"The Perrottet Liberal-National government continues to insist there isn't a teacher shortage, but this report reinforces that there is a crisis in our classrooms," she said.
Ms Car pointed to Labor's plan to cut admin hours for teachers by five hours per week and convert 10,000 temporary teachers to permanent positions as immediate relief for overworked teachers.
The opposition would also end the government's overseas recruitment program, which has delivered only a handful of new teachers, and would redirect resources towards recruiting NSW teaching students into schools.
The parties also clashed over a parliamentary report on teacher shortages released on Friday that included a finding that mobile phone bans in schools were "not supported by evidence and could lead to unintended consequences".
Education Minister Sarah Mitchell described the finding as embarrassing for Labor, which has said it would restrict mobile phone use in schools to help cut distractions and improve student outcomes.
"Chris Minns is clutching onto a policy that yet again has no detail, it has changed multiple times since the announcement and has no support from education stakeholders," she said.
Under the coalition's pledge to conduct a major review of embedded networks, where site owners either run or outsource their internal energy networks, the party claims it will achieve better deals for 150,000 energy customers.
Mr Kean said this style of network was on the rise in Australia and could make it harder for consumers to access their retailer of choice.
"(It) creates a monopoly situation which means you can't get the most competitive price in the market. We'll change all that," he said.
Earlier, Mr Kean dubbed as a "train wreck" an interview in which Mr Minns said his party's energy policy could take up to seven years to deliver price relief.
But the Labor leader accused the energy minister of playing politics and said stopping further privatisation of energy distributors Ausgrid, Essential Energy and Endeavour Energy was the best way to keep a handle on bills.
"Our focus is not to privatise our essential assets," Mr Minns said.
"We think prices will just go up further and further and further once you put it into the hands of a private company."
He said the state needs more than the one-off $250 energy relief voucher being offered by the government if it wanted to tackle unstable energy prices for good.
Labor has committed to creating a $1 billion state-owned renewable energy corporation to address issues with renewable energy capability and manage the state's transition away from fossil fuels.