The Australian government's chief energy forecasting body has published a dramatic revision of its cost estimates, predicting that onshore wind and solar PV will deliver the cheapest forms of energy by 2030 -- with solar PV dramatically cheaper than all other energy forms by 2050.

The Australian Energy Technology Assessment (AETA) prepared by the government's Bureau of Resources and Energy Economics (BREE) slashes its previous estimates of the cost of a whole range of renewables technologies, and in some cases doubles the predicted cost of coal-fired generation in the decades to come -- with or without the addition of carbon capture and storage.