Putting 100% renewables in perspective

Although valuable, AEMO's 100% renewables modelling has been criticised for not be able to be put the figures into context. When done so, the 2050 renewable scenarios appear very similar in cost to most alternatives.

AEMO’s recent modelling of 100 per cent renewables has been widely applauded as a ground-breaking analysis by an electricity system operator of the technical and economic option of 100 per cent renewable electricity supply. Although acknowledged as valuable, the modelling has been criticised for not including a ‘reference case’, and for not including the ‘trajectory costs’ (the cost of progressively constructing a power system over time, rather than all in a single year). We provide in this article an estimate of the trajectory costs, to allow meaningful comparisons with previous studies to put these figures in context.



{{ twilioFailed ? 'SMS Code Failed to Send…' : 'An SMS verification code has been sent ...' }}

Hi {{ user.FirstName }}

Looks like you have already taken a free trial

Please enter your payment details

We have sent you a code via SMS to {{user.DayPhone}}

please enter this code below to complete your SMS verification

We cannot send you a code via SMS to {{user.DayPhone}}

If you didn't receive SMS code please

SMS code cannot be sent due to: {{ twilioStatus }}

Please select one of the options below:

Looks you are already a member. Please enter your password to proceed

Please untick this box when using a public or shared device

Verify your mobile number to proceed...

Please check your mobile number below and press the Send Verification Code button. This will be used to complete your verification in the next step.

Please sign up for full access


Updating information

Please wait ...


{{ productPrice }} / day
( GST included )
Price $0
GST $0
Discount -{{productDiscount}}
TOTAL {{productPrice}}
  • Mastercard
  • Visa

Please click on the ACTIVATE button to finalise your membership


The email address you entered is registered with InvestSMART.

Please login or select "Don't know password"

Please untick this box when using a public or shared device

Register as a new member

(using a different email)

Related Articles