docs.nlr.gov/docs/fy24osti/88653.pdf

Latest saved version

現代アメリカのユーティリティ太陽光発電システムのエネルギーと炭素の回収時間

This is the newest public snapshot for this URL and the best place to start reviewing the page.

Source URL

https://docs.nlr.gov/docs/fy24osti/88653.pdf

About this page

This document presents a study assessing the energy and carbon payback times for utility-scale photovoltaic systems in the United States. Solar photovoltaic technologies contribute to the decarbonization of the electricity system by harnessing renewable energy, yet their manufacturing, operation, and end-of-life handling consume non-renewable energy and produce carbon emissions. A recent life cycle assessment (LCA) indicates that energy payback times for these systems range from 0.5 to 1.2 years, while carbon payback times vary from 0.8 to 20 years, significantly influenced by local solar irradiation and grid characteristics. These findings allow for a quantitative evaluation of the environmental contributions of photovoltaic systems.