Sumitomo Electric Uses AI to Analyze String Monitoring Data From Solar Plant (page 2)

2019/11/18 21:15
Kenji Kaneko, Nikkei BP Intelligence Group, CleanTech Labo
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The monthly report shows the monthly status of a power plant so that it can be understood at a glance. The annual report specifies strings that need to be inspected by detecting abnormalities of each string from various perspectives including reverse current, aged deterioration and the influences of trees and shades surrounding a power plant.

An image of analysis report (source: Sumitomo Electric)

Sumitomo Electric will carry out detailed analysis for each power plant of a customer. In a trial that had been conducted for the past one year (for power plants with a total solar panel output of 1-80MW), the company clarified the amount of loss in power sales by identifying locations that are susceptible to shades and increased power sales by proposing changing wiring. In another trial, the company identified broken solar panels early and realized free exchange of panels in the warranty period.

For the analysis technology employed this time, Sumitomo Electric utilized the knowledge that it obtained in the "Project to Advance Safety Regulations for New Energy, Etc (Evaluation/Verification Project for Advancing Electric Facility Safety Techniques)," with which the company has been pushing forward under Japan's Ministry of Economy, Trade and Industry (METI), according to the company.