CAISO Looks to Improve Data Quality from Solar, Wind, Battery Resources
Inconsistent Data Decreasing Grid Forecasting Accuracy
These graphs are an example of a solar resource with an erroneous high sustainable limit. The irradiance profile (bottom graph) shows that the solar resource had low variability, however the high sustainable limit profile (top graph) erroneously shows that the solar resource had high variability throughout the day. | CAISO
Mar 17, 2026
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CAISO is proposing new methods to address “poor quality data” from some variable energy resources in the region in order to improve grid forecasting, the ISO said in a straw proposal.
