This article evaluates the accuracy of solar forecast models, including SolarAnywhere®, as a function of geographic footprint ranging from a single point, to regions spanning several hundred kilometers. The forecast time horizons range from one-hour ahead, to two-days ahead. In addition, a new accuracy metric is introduced that quantifies the cost of remedying forecast errors with backup generation if the forecasts overpredict, or with curtailment in cases of underprediction.
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