Of the total CO2 emissions from the TEL value chain, emissions arising from product use account for 90% of our total CO2 emissions. For this reason, we have made it a key corporate objective to promote environmentally friendly product design, and lower the energy consumption of our products.
In fiscal year 2015, we established a goal to reduce energy and pure water consumption by 10% by fiscal year 2019, using fiscal year 2014 consumption as the baseline. To achieve this goal, we are working to reduce energy use and improve overall throughput. As a result, we achieved the goal for one model in fiscal year 2016 and three models in fiscal year 2017 ahead of schedule. Moreover, even after achieving the goal, we have maintained our efforts for these models. For instance, in fiscal year 2017 we achieved our 10% reduction goal for the Precio™ XL test system. Then in fiscal year 2018, by switching to energy-efficient motors, we were able to reduce power consumption per wafer by a further 20%. In addition, in fiscal year 2018, the percentage of sales from energy-saving models based on in-house standards was 92.8% of total product sales.
To further reduce the overall environmental impact of our products, we must examine our primary equipment, peripherals, associated facilities, and management at our customers’ factories. Going forward, it will become increasingly important to improve the operational efficiency of our equipment and encourage overall energy-efficient operations at our customers’ factories.