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Reducing Total GHG Emissions

Toshiba Group proactively installed systems to collect and/or remove sulfur hexafluoride (SF6), which is used to insulate heavy electric machinery, and perfluorocarbons (PFCs), which are used to produce semiconductors. As a result, in FY2000, the Group nearly halved the total amount of GHG emitted* compared to the FY1990 level, and in subsequent years, GHG emissions continued to decrease as the Group steadily took measures to improve its production processes. To reduce energy-derived CO2 emissions resulting from the use of electricity, we are continuing our efforts to proactively take energysaving measures at all business and production sites, including ones overseas, to improve production efficiency, and to introduce renewable energy.

Carbon dioxide (CO2), methane (CH4), dinitrogen oxide (N2O) (= nitrous oxide), hydrofluorocarbons (HFCs), perfluorocarbons (PFCs), sulfur hexafluoride (SF6), and nitrogen trifluoride (NF3)

Results of FY2015 and future initiatives

In FY2015, Toshiba Group reduced GHG emissions other than energyderived CO2 to less than 10% of the FY1990 level mainly by installing PFC removal equipment. Meanwhile, energy-derived CO2 emissions were affected by deterioration in the CO2 emission coefficient for electricity due to the effects of the Great East Japan Earthquake, but the Group reduced energy consumption compared to the FY2010 level by taking proactive conservation measures, including making capital investments. The CO2 emission coefficient for electricity is expected to further deteriorate in the future, but Toshiba Group will continue to make steady efforts to reduce total GHG emissions by investing proactively in high-efficiency equipment. The Group's goal is to reduce total GHG emissions to 3.32 million tons or less in FY2016.

Changes in total GHG emissions
[Image] Changes in total GHG emissions

The CO2 emissions coefficient for electricity is used to calculate energy-derived CO2 emissions (in Japan: 3.50 t-CO2/10,000 kWh in FY2010, 4.76 t-CO2/10,000 kWh in FY2011, 4.87 t-CO2/10,000 kWh in FY2012, 5.70 t-CO2/10,000 kWh in FY2013, 5.54 t-CO2/10,000 kWh in FY2014, and 5.10 t-CO2/10,000 kWh in FY2015). Overseas electricity is based on the GHG Protocol.

Breakdown of GHG emissions (FY2015)
[Image] Breakdown of GHG emissions

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