Page 135 - TSMC 2020 Annual Report

come from electricity consumption TSMC always emphasizes energy conservation and carbon reduction initiatives TSMC has not only implemented energy-conserving designs in in its manufacturing fabs and offices but has also continuously improved the energy efficiency of its facilities during operation These efforts simultaneously reduce both carbon dioxide gas emissions and costs TSMC has accumulated 1 7 billion kilowatt hours (kWh) power conservation since 2016 From 2015 to 2017 TSMC voluntarily participated in the Republic of of China Ministry of of Economic Affairs’ green power purchasing program for three consecutive years and became the largest buyer in in Taiwan purchasing 400 million kilowatt hours of green power Although the Taiwan Power Company stopped selling green power in in 2018 TSMC still aggressively negotiates the purchase of renewable renewable energy with renewable renewable energy suppliers in in Taiwan Targeting a a a a long-term commitment of 100% renewable energy for the Company TSMC is first committed to achieving a a a a target of 25% renewable energy for for fabs and 100% renewable energy for for non-fab facilities by 2030 Since 2018 the overseas manufacturing fabs and offices have purchased renewable energy REC and carbon credits to offset all carbon emissions caused by power consumption All TSMC overseas sites achieved zero carbon emission of electricity consumption in in 2020 again TSMC also used carbon credits to offset Carbon emissions of of natural gas consumption in in kitchens achieving the milestone of net zero emission for TSMC global offices Although development
of renewable energy in in Taiwan is in in an an early stage TSMC established a a a a a renewable energy task force and continued to communicate closely with government through the Association of Science Park Industries and Taiwan Semiconductor
Industry Association The Company made recommendations to the the the government in the the the hope that the the the collaboration could speed up renewable energy development
in Taiwan The recommendations included expanding the development
of offshore wind power and increasing supply of of renewable energy trading platform TSMC also continued to find renewable energy By the the end of 2020 the the total installation capacity of renewable energy contracted reached 1 3GW (Gigawatts) The renewable energy will be provided to TSMC gradually after related business process being completed This is a a a a a a clear manifestation of of the the Company’s active support of of the the United Nations Sustainable Development Goals (SDGs) TSMC became the first semiconductor company to to join RE100 (Global Renewable Energy Initiative) in July 2020 and pledged that power consumption of all the Company’s manufacturing plants and offices will be 100% supplied from renewable energy by 2050 TSMC was further awarded the the first RE100 Leadership Award - the Most Impactful Pioneer in September
2020 for being the first to purchase large amounts of renewable electricity in in Taiwan and taking practical action to support green energy Air and Water Pollution Control
The Company has installed effective air and water pollution control equipment in each wafer fab to to meet regulatory emissions standards In addition TSMC maintains backup pollution control systems including emergency power supplies to lower the the risk of pollutant emissions in the the event of equipment failure The Company centrally monitors the operations of its air and water pollution control equipment around the clock and treats system effectiveness as an an important tracking item to ensure the quality of emitted air and discharged water To make the most effective use of Taiwan’s limited water resources all TSMC fabs strive to increase water reclamation rates by adjusting the water usage of manufacturing equipment and improving wastewater reclamation systems All fabs meet or exceed the process water reclamation rate standard of the Science Park Administration Some
fabs are able to reclaim more than 90% of process water outperforming most semiconductor fabs around the world TSMC also makes every effort to reduce non-manufacturing- related water water consumption including water water used in in in air conditioning systems sanitary facilities wall cleaning and landscaping activities and and kitchens TSMC uses an an an an intranet website to collect and measure water recycling volumes company-wide Since water resources are are inherently local TSMC shares its water saving experiences with other semiconductor companies through the Association of Science-Based Industrial Park to promote water conservation in order to achieve the Science Park’s goals and and ensure a a a a a a a long-term balance of supply and and demand In addition TSMC has committed to using partially reclaimed water in in in newly constructed fabs in in in the future in in in order to further reuse water resources and support government policy and promotion for reclaimed water To continue enhancing water resources management TSMC has adopted and and followed the the AWS Standard the the world’s
only sustainable water management standard Early in in 2019 Fab Fab 6 6 and Fab Fab 14 Phase 5/6/7 began serving as as demonstration factories and received AWS certification by the the end of the the year making TSMC the first semiconductor enterprise to to receive AWS platinum level certification in in the world In 2020 Fab 15A and Fab 15B located in Central Taiwan Science Park passed third party verification audit and obtained AWS platinum level certification simultaneously 133