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  5. Reducing Greenhouse Gas (GHG) Emissions and Boosting Energy Intensity at Our Business Sites

Reducing Greenhouse Gas (GHG) Emissions and Boosting Energy Intensity at Our Business Sites

Our Approach

The Fujitsu Group believes that prevention of global warming is a priority issue. Accordingly, we have formulated the "FUJITSU Climate and Energy Vision," Fujitsu's medium/long-term environmental vision, and aim to eliminate all CO2 emissions from our business activities by 2050.

The primary GHG emissions from our business sites (plants, offices, and datacenters) are CO2 accompanying energy (electricity, fuel oil, and gas) usage, and perfluorocarbon (PFC), hydrofluorocarbon (HFC), sulfur hexafluoride (SF6), and nitrogen trifluoride (NF3) used in semiconductor manufacturing. In addition to complying with relevant laws, we have set reduction targets for these and are striving to decrease and control the amounts we use and emit.

Reduction of CO2 Emissions due to Energy Consumption

CO2 emissions due to energy consumption are responsible for about 90% of the Fujitsu Group's greenhouse gas emissions. Therefore, we continuously work to improve the following energy-saving measures to reduce CO2 emissions.

  • Energy-saving equipment, focusing on motive-power facilities (introduction of free cooling, inverters, energy-saving facilities, fuel conversion, etc.)
  • Increased efficiencies through revised manufacturing processes, accompanied by proper motive-power facility operation and improvement of management
  • Adjusting appropriate room temperature for office air conditioning, saving electricity for lighting and office automation equipment
  • Promotion via measurement of energy consumption visualization and proactive use of that data
  • Use of renewable energy such as solar power

Reducing Emissions of Greenhouse Gases other than CO2

For greenhouse gases other than CO2, the Fujitsu Group mainly uses perfluorocarbon (PFC), hydrofluorocarbon (HFC), sulfur hexafluoride (SF6) and nitrogen trifluoride (NF3) at its semiconductor divisions. We have been continuously working on changing these gases to those with a lower global warming potential (GWP) and installation of equipment to remove harmful materials in our new and existing fabrication lines.

FY 2016 Performance and Results

Summary of FY 2016 Achievements

Promoted Reductions of CO2 Emissions Accompanying Energy Consumption

In fiscal 2016 as well, we are introducing and upgrading BAT* at each business site,streamlining manufacturing, making energy consumption "visible," and utilizing measurement data, etc.

GHG emissions in fiscal 2016 totaled approximately 1,199,000 tons (specific consumption/sale: 26.6 tons/100 million yen), down 9.4% since fiscal 2013. Despite increased production in Japan, we implemented measures to reduce approximately 20,000 tons. However, energy intensity worsened by 1.0% year on year. We will optimize specific consumption indicators in addition to conducting energy-saving activities.

* BAT (Best Available Technologies):
Usable state-of-the-art technologies to reduce GHG.

Trends in Total Greenhouse Gas Emissions

Reports on Main Activities in FY 2016

Participation in Demand Response Verification Testing

Fujitsu's Numazu Plant participated in "Demand Response (Negawatt Trading) Verification Testing" conducted by theMinistry of Economy, Trade and Industry. In the verification testing, the company cooperates in suppressing the demand for power during a set period of time when requested (advance notification) by a power company. Incentives (monetary subsidies in the case of verification testing) are given according to amount of decrease and other results. At the Numazu Plant, the methods of suppressing the demand for power (peak cut) included adjusting the operational output of gas engine generators in light of the plant's forecasted demand and utilizing smart switch (Comverge, U.S.) remote operation/control to stop air-conditioning devices, adjust temperatures, etc. In fiscal 2016, we were able to accommodate requests twelve times for a total of 124 MW.

Photo: Gas engine generatorsGas engine generators