The New South Wales government will offer eligible households across the state access to zero-interest loans of up to $15,000 to help pay for energy upgrades including rooftop solar, household batteries, electric appliances and insulation.

Designed to help households cut their power bills and make their homes cheaper to run, while eliminating the upfront costs which can sometimes lock people out, the new $557 million Home Energy Saver program will provide both loans and discounts on certain energy-saving upgrades.

Zero-interest loans of up to $15,000 are immediately available to households with a combined taxable income of up to $210,000 and can be paid off over 10 years.

The up to $15,000 will help fund investments ranging from rooftop solar, household batteries, insulation, reverse-cycle air conditioning, switchboard upgrades, ceiling fans, and draught proofing.

For example, eligible households who want to purchase a solar and home battery system for $10,000 can apply for a loan, allowing them to pay the loan off over 10 years, rather than having to pay the full amount up front.