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The capacity of installed photovoltaic (PV) generation in Japan is the world's 3rd largest and has been increasing rapidly due to the governmental subsidy and feed-in tariff programs. The rapid increase in PV installations drives electric utilities to various problems on how to operate the electric power systems stably. Then the utilities have to invest heavily in the systems. Under the circumstances,...
The capacity of installed photovoltaic (PV) generation in Japan has been expanding rapidly due to the governmental subsidy and feed-in tariff programs and then it has reached to 3.62 million kW as of 2010. This rapid increase in PV installation drives utilities to problems on how to operate stably the electric power systems. Therefore, electric power companies have to invest heavily in the systems...
The metallurgical and mechanical properties of Sn–3.5wt%Ag–0.5wt%Bi–xwt%In (x=0–16) alloys and of their joints during 85°C/85% relative humidity (RH) exposure and heat cycle test (−40–125°C) were evaluated by microstructure observation, high temperature X-ray diffraction analysis, shear and peeling tests. The exposure of Sn–Ag–Bi–In joints to 85°C/85%RH for up to 1000h promotes In–O formation along...
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