Presentation Details
| Photovoltaic Manufacturing & Water Samantha B.Reese, Hope M.Wikoff, B.Edward Sartor, Ryan Muzzio, Isabella Roszell, Deborah L.McGott. National Laboratory of the Rockies, Golden, CO, USA |
Abstract
Global photovoltaic (PV) capacity is projected to reach 75–100 terawatts (TW) by 2050 with the U.S. projected to reach 0.76–1 TWp by 2035, a 10–13× increase from 2020. With strong emphasis on re‑shoring PV manufacturing, potential impacts on public water supplies becomes important to assess — PV companies rely almost entirely on municipal water. In contrast to fossil thermoelectric generation, PV’s water intensity is lower, but data on manufacturing water use is sparse, inconsistent, and often outdated and while PV manufacturing withdraws far less water than fossil generation, step choice and technology matter
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