We specialise in short-term Variable Renewable Energy (VRE) forecasting for electricity market dispatch, and offer three core services:

Forecasting service

  • We use state-of-the-art machine learning and data science techniques to develop accurate and reliable energy forecasting models. Our models take a bottom-up approach, using on-site data.

    In addition to delivering high-quality forecasts, our team applies its expertise in control systems to help our clients identify and diagnose potential control system issues, ensuring their assets operate efficiently and reliably.

  • In Australia’s National Electricity Market (NEM) utility-scale wind farms are allowed to submit their own 5-minute-ahead ‘self-forecast’ values for the market’s dispatch process (in place of the market operator’s central forecasting system).

    ETSI’s self-forecasting service delivers more reliable and accurate forecast values, saving our clients the financial benefits associated with Regulation Frequency Costs, Frequency Performance Payments (FPP) and avoiding unnecessary curtailment.

VRE operational dashboards

  • We develop dashboards that provide market participants with situational awareness about the performance, profitability and compliance of their VRE assets.

  • In Australia’s NEM, we have developed the ETSI Dashboard, a tool that processes the market operator’s 4-second data to give participants clear, actionable insights. Through the dashboard, users can:

    • Calculate foregone generation and revenue impacts compared against central forecasts (AWEFS/ASEFS) during Semi-Dispatch Cap (SDC) intervals.

    • Identify periods of high negative settlement under the Frequency Performance Payments (FPP) mechanism.

    • Review market compliance, such as linear ramping and SDC exceedances.

    • Quantify levels of forced curtailment and economic offloading.

    Click here to find out more about the ETSI dashboard.

Specialist power system consulting

  • We offer bespoke consulting services built on our deep understanding and experience of VRE forecasting, power system operations, and market design.

  • ETSI provided advice to New Zealand’s Electricity Authority during their review of VRE forecasting provisions. The system operator eventually published their decision paper, in line with ETSI’s recommendation to implement a hybrid forecasting arrangement.