Moody’s said the immense scale of the transition will make achieving the decarbonisation goals “challenging”.
“There is a risk of slippages given that the run-rate on the renewable energy rollout will need to effectively double on recent years to reach national targets,” it said.
“The scale of the transition partly reflects that renewable electricity generation output is guided by the vagaries of the weather and is often located in remote renewable resource rich regions,” meaning extra transmission infrastructure has to be built.
Moody’s warned of “social risks” if customers are asked to foot higher energy bills.
To keep public sentiment in check, there may be more government rebates, the firm predicted.
In the past two budgets, the Albanese government has spent several billion dollars of taxpayers’ money on subsidies.
Labor went to the last election promising to lower power bills by $275 by 2025. Instead, most customers’ costs have risen by far more.
“We consider the power sector to exhibit high social risks on account of rising electricity prices,” Moody’s said.
“Social risks may also be concentrated in regions carrying more of the transition burden,” in the form of transmission lines, wind turbines and solar farms.
Moody’s said Canberra had the financial capacity to provide more bill offsets, but the government was already “facing significant spending pressures including in policy areas such as the National Disability Insurance Scheme, defence spending and (other) responses to climate change.”