Proterra
Volta MemberVFAbout
Proterra designs and builds battery packs for heavy-duty commercial vehicles and equipment.
Its Onyx Slate and Onyx Strata packs use cylindrical cells on a modular platform that scales from 40 kWh to over 200 kWh. They power heavy-duty trucks, transit and school buses, medium-duty and specialty vehicles, and off-highway, port, marine, mining, construction, rail and defense equipment. Proterra also supports vehicle makers with engineering and integration help, aftermarket parts, servicing and training.
Proterra designs its batteries at its headquarters in Burlingame, California, and assembles them at its Powered One plant in Greer, South Carolina.
In the Battery Report
Proterra is named on 8 pages across 5 editions of Volta Foundation's annual Battery Report.
All 8 pages
Battery Report 2025 · 1
Battery Report 2024 · 2
Battery Report 2023 · 3
Battery Report 2022 · 1
Battery Report 2021 · 1
Supply Chain Segments
Battery Chemistries
Location Info
- HQ
- Burlingame, California, United States
North America (3)
- Manufacturing
- City of Industry, California, United States
- Manufacturing
- Greenville, South Carolina, United States
- Manufacturing
- Greer, South Carolina, United States
Sources
Chemistry: Nickel Manganese Cobalt (NMC)
- High-Energy Lithium-Ion Batteries - Proterra · Company site · checked Oct 2026“Explore safe, high-energy NMC lithium-ion battery systems with advanced thermal management for commercial EVs.”
Quick Facts
- Team Size
- 501-1000
- Funding
- Public
- Last Updated
- Oct 29, 2026
