成果報告書詳細
管理番号20130000000655
タイトル*平成24年度中間年報 太陽エネルギー技術研究開発 太陽光発電システム次世代高性能技術の開発 広域対象のPVシステム汎用リサイクル処理手法に関する研究開発
公開日2014/5/9
報告書年度2012 - 2012
委託先名公益財団法人北九州産業学術推進機構
プロジェクト番号P07015
部署名新エネルギー部
和文要約
英文要約Title: Development on PV recycling system for some wide-area (FY2010-FY2012) FY2012 Annual Report

Aiming at establishment of a PV recycling system, we have started a development of low cost universal
recycling processes applicable to various types of PV modules and a LCA study and proposing a social system
desired for the PV recycling system. Outline of the development and the studies in fiscal 2012 are as follows. For
the development of low cost universal recycling processes, we have improved the prototype of the
aluminum-frame remover due to automating sub-processes using a six axles robot, the EVA-thermal
decomposition apparatus due to accelerating the process speed and the CIS metal film scrapping apparatus from
glass substrate due to increasing stiffness property for minimizing vibration, which apparatus were installed last
year to be applicable to various types of PV modules, and newly made a prototype of a non-heating back-sheet
remover and a recycling system controller. Since a total recycling system has been prepared through above-
mentioned improvements and test production, we will hereafter conduct performance tests on the total recycling
system through processing a lot of end-of-life PV modules. We will estimate that an annual maximum capability
of the total system is roughly 12MW in case of crystalline Si PV modules. Regarding the LCA study, we reviewed
the results on polycrystalline Si PV module calculated in fiscal 2011. In addition, we also evaluated waste
treatment and recycling for amorphous Si PV module and CIS PV module. The results show that CO2 emissions
can be reduced as 36kg/kW for polycrystalline Si PV module, 61kg/kW for amorphous Si PV module and
67kg/kW for CIS PV module, assuming the glass recycling and the heat recovery from EVA combustion. Based
on these results, we considered that the glass recycling/reusing and the heat recovery from EVA combustion are
important in terms of CO2 emissions reduction. Concerning a social system desired for the PV recycling system,
we conducted detailed study on logistics cost incorporating expertise of a logistic company. In
addition to the PV recycling logistics, we newly organized issues of cost collection methods in terms
of appropriate cost collection timing and deposit management considering characteristics of long
lifetime. As for legal systems, we investigated rulemaking process of existing recycle laws such as the Home
Electrical Appliance Law and the End of Life Vehicle Recycling Law etc. to understand what are important for
rulemaking of PV recycling. It was made clear that substantiating present or future issues on demolition, taking
back and landfill disposal of PV modules was important. For example, safety of landfill disposal of crashed PV
modules should be investigated quantitatively, since leaching property of hazardous metal depends on fragment
size of crashed PV module.
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