How data centers use waterData centers use water in two main ways: directly, to cool their equipment, and indirectly, through the electricity they rely on. But he said the center’s water use isn’t expected to put a deep dent in the city’s overall water supply. Tracking how much water data centers use is complicatedTexas’s water planning process is built on historical data. Long-term projections of the state’s water needs by the Texas Water Development Board rely on past usage trends and historical reported water use. Experts say this model can leave the state’s water supply vulnerable to fast-moving growth of new industries like data centers.