Arizona’s chip footprint grows, but TSMC’s water demand sparks questions

Key Points:

• Taiwan Semiconductor Manufacturing Co. (TSMC) is investing an additional $100 billion to expand its semiconductor plant in north Phoenix, reinforcing Arizona's status as a global chip manufacturing hub.
• The facility uses approximately 4.75 million gallons of water daily, primarily sourced from reclaimed wastewater, with a smaller portion from groundwater, raising concerns about water consumption amid regional shortages.
• TSMC recycles about 65% of its water on-site through advanced filtration systems, equating to roughly 3.5 million gallons per day, with plans to increase recycling to 90% by 2028 via a new reclamation plant.
• Despite water use concerns, city officials have approved the plant’s water consumption, citing economic benefits including job creation and revenue generation, while TSMC emphasizes its commitment to minimizing environmental impact.
• Experts highlight the broader challenge of balancing economic growth with water sustainability in Arizona, noting that many industries rely heavily on water resources even amid ongoing water supply constraints.