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INDIVIDUAL FACILITIES AND SELECTED SOURCES
Below is basic information about individual facilities in our database and selected sources we've drawn on to support the analysis.  To navigate to other sites, use the search page.

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Sion Power Battery Manufacturing Expansion

Sion Power

Tucson, AZ, USA

-110.929602, 32.1255593

The Big Green Machine Site ID: 100

Project Timeline

Project Timeline Unavailable (Insufficient Information)

Additional Information:

Sector: Batteries

Activity: Manufacturing

Product: Battery Cell


Project Announcement Date: 12/7/2022

Target for Starting Production: 2026

Date Commercial Production Started:

Announced Post Inflation Reduction Act: Yes


Operating Status: Pilot


Target Jobs: 250

Current Jobs: 100

Capital Investment: $75 million

Congressional District: AZ7

Government Subsidies:

We currently have no government subsidies tracked for this site.

Selected Sources:

“Sion Power Announces Plans to Expand Battery Manufacturing Operations”, sionpower.com, 06 Dec 2022. 🔗


“Sion Power Announces Plans to Expand Battery Manufacturing Operations in Tucson, Arizona”, Business Wire, 07 Dec 2022. 🔗


“Tucson-based Sion Power hits critical EV battery cell production milestone”, Seattle TechFlash, 31 Mar 2025. 🔗


“Tucson's Sion Power gets $75M to drive new EV battery tech”, David Wichner, Arizona Daily Star, 24 Jan 2024. 🔗


Tracked Expansions, Acquisitions, or Related Sites:

We currently have no related projects tracked for this site.

This website, dashboard, and dataset are maintained by Jay Turner and student researchers in the Environmental Studies Department at Wellesley College. It is updated at least monthly. The data presented are compiled from publicly available sources. Summary statistics are incomplete and omit data from sites where publicly available information (regarding capital investments, employment levels, etc.) is unavailable. While we make every effort to ensure the information presented here is accurate, the information should be treated as estimates. We assume no responsibility or liability for any errors or omissions. The information contained in this site is provided on an "as is" basis with no guarantees of completeness, accuracy, or usefulness. The Big Green Machine® is a registered trademark. The Big Green Machine Data © 2024 by Jay Turner is licensed under CC BY 4.0.  Please submit feedback using this formData on this site last updated on November 20, 2025. 

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