NSW seeks more detail on energy policy

NSW Premier Gladys Berejiklian says she needs to see more detail on the federal government's national energy guarantee before signing up to it.

"I'm not going to sign NSW up to anything unless it helps NSW citizens," she told reporters in Sydney on Wednesday

Ms Berejiklian said a national approach was important but she would not do anything that undermined NSW being "the most resilient state" when it came to energy or forced up prices.