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Sandia National Laboratories: Energy & Climate: Renewables
Sandia National Laboratories: Energy & Climate: Renewables

Effect of time-averaging on PV production estimates on systems with high DC to AC ratios

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• High variability + high DC:AC ratios… • 60min interval modeling  missed clipping • 1.4 DC:AC ratio, SE US, 2.1% overestimation Effect of time-averaging on PV production estimates on systems with high DC to AC ratios Jonathan O. Allen1 & William B. Hobbs2 1Allen Analytics LLC & 2Southern Company Services, Inc.    n 1i idc,idc,CtA,ac V,Pf n 1 P idc,idc,AtC,ac V,PfP  vs Sandia inverter model Averaged inputs Averaged outputs

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P14 w hobbs_effect_of_time-averaging_on_pv_estimates

  • 1. • High variability + high DC:AC ratios… • 60min interval modeling  missed clipping • 1.4 DC:AC ratio, SE US, 2.1% overestimation Effect of time-averaging on PV production estimates on systems with high DC to AC ratios Jonathan O. Allen1 & William B. Hobbs2 1Allen Analytics LLC & 2Southern Company Services, Inc.    n 1i idc,idc,CtA,ac V,Pf n 1 P idc,idc,AtC,ac V,PfP  vs Sandia inverter model Averaged inputs Averaged outputs