Statistical Clear Sky Fitting Algorithm

TL;DR

This paper introduces a novel algorithm that estimates the clear sky performance of PV systems solely from observed power data, without requiring weather or system configuration information.

Contribution

The proposed method uniquely infers clear sky signals using only power measurements, bypassing traditional atmospheric and geometric modeling techniques.

Findings

Accurately estimates clear sky performance from power data alone

Does not require weather, irradiance, or system configuration information

Offers a new approach to PV system performance analysis

Abstract

We present an algorithm that estimates a clear sky performance signal from the measured power of a PV system. The algorithm uses only observed power output, and assumes no knowledge of weather, irradiance data, or system configuration metadata. This is a novel approach to understanding the clear sky behavior of an installed PV system, that does not rely on traditional atmospheric and geometric modeling techniques.