Household clean tech set-ups like solar and batteries can mean huge savings. But what's sitting behind the meter may become the most valuable asset as a new energy market emerges.

Australians spent $4.4 billion on video gaming last year, but finding information on how best to spend their money is challenging.

The federal budget is sliding deeper into the red, Treasurer Jim Chalmers has confirmed, with next month's mid-year budget update to show a larger deficit than had been expected in May.

The icebreakers have been invited to expand their use of Hobart as part of a push by the Tasmanian government to capitalise on China's growing interest in Antarctica.

Police say they have arrested 170 protesters in Newcastle Harbour for allegedly blocking the shipping channel during an anti-fossil fuel protest.