A groundbreaking trial to test an innovative alternative to rooftop solar export tariffs will run for another year and with double the number of participants.

Abundance defines the day as wind and solar curtailment hits new peaks, accounting for more than 90 per cent of one state's demand. More batteries then.

The New South Wales government has given the planning green light to the $209 million Armidale battery energy storage system (BESS), which will boast ...