NSW Solar feed-in tariffs, the rates paid to individuals who generate electricity and feed it to the grid, are the worst in the country according to figures released by solar broker and advisory company Solar Choice.

However, the drop in feed-in rates doesn't mean the aim of never paying another electricity bill is no longer achievable.

Solar panel installation company Infinity Solar's Jim McMillan said as long as people have a system capable of delivering 'negative loading', which allows people to consume the electricity they produce, the installation of solar panels will continue to be cost effective and offer significant savings.

The Tweed Heads sales manager said changes to feed-in rates and reductions in rebates on offer from state governments meant a lot of "cowboys" had left the industry.

"What we're left with are high end companies that offer good service and high quality."

"With the right negative load system in place, people can still pay off their systems in five to seven years."

"The best system to install is a 'hybrid' system which sends all power generated into your house and the electricity which isn't used will charge batteries,"Mr McMillan said.

Solar Choice suggests the drop in feed-in rates means self-consumption of solar power will become the norm as exporting power to the grid will become less attractive for system owners.

NSW feed-in tariffs are between 0-8c/kWh depending on retailer and are well below the tariffs offered by electricity companies in most other states.

Victorians who feed electricity back to the grid can expect to receive 25c/kWh under the state's transitional scheme or receive 1:1 which means the electricity retailer will pay customers with solar systems the rate equivalent to what they pay for electricity.

Queenslanders who feed electricity back to the grid receive 8c/kWh while contributors in all other Australian states receive 1:1.