AIST REPORT 2012

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Global Warming CountermeasuresAs part of efforts to reduce environmental load materials generated from activities at AIST, in June 2007, AIST established an implementation plan to reduce greenhouse gas emissions, promoted activities to reduce greenhouse gas emissions over five years from FY2004 to 2009, and in FY2010 reduced greenhouse gas emissions by 15% over FY2004.Its operations in FY2011 were affected by the earthquake, with damage to facilities. In restoration of the damaged facilities, instead of restoring them to the previous state, we concentrated some research facilities, improved space utilization, and made changes to improve the efficiency of the research infrastructure. These efforts, in addition to power-saving efforts in the summer, resulted in a greenhouse gas emissions reduction of 17.2% over FY2010. With the anticipation that factors such as establishment of a new research base and research enhancement by promoting open innovation will contribute to an increase in greenhouse gas emissions, AIST will continue activities to reduce greenhouse gas emissions to live up to the expectations of the government and society. The goal of the next phase is to reduce greenhouse gas emissions by an average of 4% over FY2004 in three years between FY2012 and 2014.Power-Saving Efforts in SummerTo comply with the restrictions on the use of electricity in the service area of Tokyo Electric Power Co. Ltd. imposed in the summer of 2011, in accordance with Article 27 of the Electricity Business Act, we took general energy saving measures not to exceed the specified limit on power consumption, as well as the following measures to minimize the impact of the energy-saving measures on research activities.Reviewed experimental plans to conduct most of the experiments using large facilities before and after the summerGenerated about 600 kW of power on sunny days with the solar power system in AIST Tsukuba aloneReduced peak power consumption by 1.200 kW between 9 a.m. to 6 p.m. by charging an NAS battery system overnight and discharging it during the daySuccessfully reduced peak power consumption by about 800 kW between 8 a.m. and 3 p.m. over the previous summer, by operating large power-intensive research facilities, such as the research wastewater treatment plant and the helium liquefaction facility, in turns, on holidays, and at nights●Measures taken to reduce peak power consumption ● Energy-saving measuresReduction of Greenhouse Gas Emissions※ Share-use restriction schemeReduction of peak power consumption in accordance with Article 27 of the Electricity Business Act is performed on each power-requiring facility. However, as an exception, if it is possible to reduce the peak power consumption of multiple power-requiring facilities as a whole, it can be done through collaboration among them. 0100200300400CO2 emissions01,0002,0003,0004,000Total energy consumption 2011200920082007200620052004年度1,000 t-CO21763,1423,0472,9343,0162,8812,8432,688168162166159126922,172111Fossil fuel: 15%OthersFossil fuelPurchased electricityPurchased electricity: 84%Others: 1%2010TJChange in CO2 emissions and total energy consumptionBreakdown of CO2 emission sourcesNote: The CO2 emission factors have been changed since FY2009.Shutdown or operation in turn of some of the largefacilities (clean rooms, constant temperature andhumidity rooms, large computers, etc.) Concentration of animal raising facilities,refrigerators and freezers for research purposes, etc.Introduction of a total power consumption monitoring system to monitor power consumptionImplementation of a shared-use restriction scheme※ at AIST Tsukuba and AIST Tokyo WaterfrontIntroduction of rotating scheduled shutdowns in summer in which sites shutdown in turn(1)(2)(3)(4)(5)(1)(2)(3)(4)52|Environmental ReportEnvironmental Report

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