The peak body for Australia's clean-energy sector has rallied behind independent MPs' push to put renewables on the agenda of the next federal government.

The Clean Energy Council, which represents energy retailers including AGL, TRUenergy and Origin, on Friday sent an open letter to the major parties calling for the introduction of a carbon price.

The council's chief Matthew Warren said Australians wanted action on climate change and business wanted certainty to invest in clean energy - and a trading scheme was recognised as the most efficient way of reducing emissions.

It came as one of the three rural independents who will decide the next government, north Queensland's Bob Katter, released his 20-point wishlist to the two major parties' leaders.

Top of his list was the creation of a national energy grid to give Australians continuous access to solar, wind and geothermal energy, and create jobs in the bush.