The Annals of Applied Statistics

Bottom-up estimation and top-down prediction: Solar energy prediction combining information from multiple sources

Youngdeok Hwang, Siyuan Lu, and Jae-Kwang Kim

Full-text: Open access

Abstract

Accurately forecasting solar power using the data from multiple sources is an important but challenging problem. Our goal is to combine two different physics model forecasting outputs with real measurements from an automated monitoring network so as to better predict solar power in a timely manner. To this end, we propose a new approach of analyzing large-scale multilevel models with great computational efficiency requiring minimum monitoring and intervention. This approach features a division of the large scale data set into smaller ones with manageable sizes, based on their physical locations, and fit a local model in each area. The local model estimates are then combined sequentially from the specified multilevel models using our novel bottom-up approach for parameter estimation. The prediction, on the other hand, is implemented in a top-down matter. The proposed method is applied to the solar energy prediction problem for the U.S. Department of Energy’s SunShot Initiative.

Article information

Source
Ann. Appl. Stat., Volume 12, Number 4 (2018), 2096-2120.

Dates
Received: December 2016
Revised: January 2018
First available in Project Euclid: 13 November 2018

Permanent link to this document
https://projecteuclid.org/euclid.aoas/1542078038

Digital Object Identifier
doi:10.1214/18-AOAS1145

Mathematical Reviews number (MathSciNet)
MR3875694

Keywords
Big data prediction large-scale monitoring data multilevel model physics models solar power generation

Citation

Hwang, Youngdeok; Lu, Siyuan; Kim, Jae-Kwang. Bottom-up estimation and top-down prediction: Solar energy prediction combining information from multiple sources. Ann. Appl. Stat. 12 (2018), no. 4, 2096--2120. doi:10.1214/18-AOAS1145. https://projecteuclid.org/euclid.aoas/1542078038


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