Figures released to The Herald from the Department of Environment, Water, Heritage and Arts show more than 2469 of the region's households have undergone a free home sustainability assessment.

The assessments form part of the Federal Government's green loans program launched in July last year and identify home improvements to reduce water and energy bills.

Once assessed, home owners can apply for an interest-free loan of up to $10,000 for a maximum of four years to make household changes recommended in the report.

First-home buyers Jarrod Wynn and Erin Boslem have had their house assessed, bringing them a step closer to greening their Adamstown Heights home.

The young couple plans to use the green loan to fit photovoltaic cells to the roof.

"Water and energy costs are only going to go up," Mr Wynn said.

"This will reduce the amount of energy and water I use, reducing the cost of living."

An environmental engineer, Mr Wynn knows the importance of "doing your bit" to reduce the Hunter's carbon footprint.

"Anything you do makes a difference in our local community," he said.

"The more we do as a collective will add up and that is going to make a big difference on a larger scale."

In NSW 991 assessors have completed about 43,000 free home sustainability assessments.