Residents in retirement villages, for the very first time, as well as low income earners in the state of NSW are poised to receive energy rebates to assist them manage their respective escalating power bills, the state government announced on Tuesday.

Effective July 1, the existing $215 rebate will rise to $225, and then jump to $235 in 2014. At least more than 30,000 people are expected to benefit from the rebate extension.

"Electricity bills are high. We estimate that this could be up to one quarter in many cases even a third of what people have been paying in their annual electricity bill," Chris Hartcher, NSW energy minister, said on Tuesday.

In NSW, since 2009, electricity prices have jumped by as much as 61 per cent.

A first for residents in retirement villages, the state government explained they were not covered previously because it was their landlords who supplied their electricity, thus unable to access the rebate.

But now, "pensioners and customers holding certain concessions cards and who receive a bill from a retailer are eligible to receive the rebate," Mr Hartcher said.

"The money is there, the assistance is there, and we're encouraging customers to check whether they're eligible and to take advantage of this funding," he said.

Residents of retirement villages need to be pensioners or have a concession card issued either by the Department of Human Services or the Department of Veterans Affairs in order to qualify.

Households hit by crisis or emergency situations will likewise receive an improved emergency voucher scheme, where the value of each voucher will increase to $50 effective July 1.

The $16 million boost comes on the back of a $210 million package of assistance measures to help households manage rising electricity costs announced in 2012, Mr Hartcher said.