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This paper presents a set of methods for estimating the renewable energygeneration downstream of a measurement device using real-world measurements.First, we present a generation disaggregation scheme where the only informationavailable for estimation is the micro-synchrophasor measurements obtained atthe substation or feeder head. We then propose two strategies in which we usemeasurements from the substation as well as a proxy solar irradiancemeasurement. Using these two measurement points, we first propose a multiplelinear regression strategy, in which we estimate a relationship between themeasured reactive power and the load active power consumption, which are thenused in disaggregation. Finally, we expand this strategy to strategicallymanage the reconstruction errors in the estimators. We simultaneouslydisaggregate the solar generation and load. We show that it is possible todisaggragate the generation of a 7.5 megawatt photovoltaic site with aroot-mean-squared error of approximately 450 kilowatts.

Towards Real-Time Estimation of Solar Generation From Micro-Synchrophasor Measurements