Most households want more assistance to install rooftop solar and batteries, and would support subsidies for systems in public and community housing.
A national poll released on Monday found more than three-quarters (79 per cent) want federal assistance for permanent energy bill relief through access to cheaper, smarter household solar.
As energy bills soar, about half said they were avoiding air conditioning and heating less, and cutting back on other energy use.
The Glow poll commissioned by grassroots organisation Solar Citizens found almost four in five Australians want Tuesday's federal budget to prioritise subsidies or grants for low-income households to install solar.
"Having access to solar at home massively cuts your energy bills - it's that straightforward," said Solar Citizens national director Heidi Lee Douglas.
"Rooftop solar can save up to an average of $750 per year on their electricity bills, for up to 20 years, but up-front costs and other barriers are preventing many households from accessing these savings."
Three-quarters of poll respondents wanted budget funding for interest-free loans for home owners to purchase rooftop solar.
There was also support for poorer households and renters, with 79 per cent backing taxpayer funding for installing solar on public and community housing as a budget priority.
Federal funding for social housing would also help states and territories roll out solar systems on properties, which could cut the power bills of at least 249,000 struggling households, Solar Citizens said.