The economics and regulation for Marinus Link is assessed under the Regulatory Investment Test for Transmission (RIT-T).

The RIT-T is a regulatory mechanism defined in the National Electricity Rules that applies an economic cost benefit test on new electricity infrastructure proposed for the National Electricity Market (NEM).

According to the Australian Energy Regulator (AER): “The purpose of the RIT-T is to identify the credible option that maximises the present value of net economic benefit to all those who produce, consume and transport electricity rules.”

The role of the RIT-T is to undertake a cost benefit analysis focusing on
different technical solutions by looking in detail at engineering aspects,
refining costs, considering alternate options, and staging.

The economic assessment process has involved:

     

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