Marginal Loss Factors (MLF) and Curtailment analysis


Cornwall Insight Australia forecasts changes in Marginal Loss Factors across the NEM. We use proven advanced engineering techniques and the impact of demand, generation development, and transmission augmentation on individual assets to create robust forecasts.

The analysis of Marginal Loss Factors also utilises all insights across Cornwall Insight Australia’s suite of modelling, analysis, and activities, such as the Benchmark Power Curve, the Storage Investment Model, and FCAS forecasts.

We support with the following:

  • Estimate the impact of any change in the electricity market on the marginal loss factors at any transmission node in the NEM.
  • Time-of-day profiling for project MLFs
  • MLF due diligence for potential project sales
  • Red flag assessments

As well as bespoke consultancy, Cornwall Insight Australia offer a quarterly Marginal Loss Factor curve subscription which includes projections for all current generators in the NEM and selected TNI points in Renewable Energy Zones (i.e., sub-regional REZ locations).

MLF assessments

MLF and curtailment forecast for Japanese investor/developer (2022-23): Undertook an MLF forecast for a large Japanese solar developer, which also included an assessment of curtailment.

MLF forecast for an international solar developer (2022): Undertook an MLF forecast for a large international solar developer, which also included undertaking an impact assessment of how the site affected the MLF of those other sites in close proximity to the project and assessed the overall benefit of the project to the total regional output.

MLF forecast for an international solar and storage developer (2022): Undertook an MLF forecast for three storage sites and a co-located solar and storage site.