The Energy Systems Integration Group (ESIG) has a new report, Long-Term Load and DER Forecasting, led by EPE's Julieta Giraldez, Director of Integrated Grid Planning and Chair of ESIG's Long-Term Load and DER Forecasting Task Force.
Long-term load and DER forecasting is key to meet clean energy goals and ensure a reliable, resilient, and affordable energy system. Traditionally, these forecasts focused on total annual energy and peak demand. Today, the evolving energy landscape demands a paradigm shift.
“The evolving energy landscape demands careful modeling in load and DER forecasting practices as well as the need to study multiple future scenarios,” said Julieta Giraldez. “Multiple entities often produce forecasts for overlapping regions, and improving forecast alignment is critical for planners to manage differences in forecast components, reconcile how local and system peaks relate, and properly allocate system level data to local grid areas. This ultimately improves integrated planning approaches and creates greater coordination across system operators, utilities, and other planning entities.”
ESIG's report explores the evolving challenges of long-term load and DER forecasting in today’s transforming grid. It examines how variable renewable generation, electrification, and the rising adoption of customer-sited technologies—including solar, battery energy storage, and electric vehicles—are reshaping forecasting practices and grid planning.
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