EV Supply Chain > Gigafactories > EV Assembly Gigafactories > NIOONVO/Firefly Assembly
NIO ONVO/Firefly Assembly Gigafactory
[Last updated: Apr 2026]
This electric vehicle final assembly gigafactory is part of the advanced manufacturing and industrial electrification ecosystem in China.
| OEM/owner: | NIO |
| Facility: | ONVO/Firefly Assembly |
| Location: | Hefei Anhui |
| Country: | China |
| Tier level: | 2 |
| Capacity: | 200 units |
| Other product: | Battery |
| Status: | Operational |
| Opened: | 2024 |
| Investment: | 1.00B USD |
| Anchor customer: | ONVO / Firefly (NIO sub-brands) |
| Other customer: | Geo risk: | HIGH |
Supply chain notes:
NIO mass-market sub-brands ONVO and Firefly targeting volume segments; LFP; separate assembly line from NIO premium..
Semiconductor relevant notes:
Mass-market Chinese EV SiC cost-down pressure; LFP volume.
Location map - Driving directions
EV gigafactories are large-scale industrial production facilities that integrate vehicle assembly, battery manufacturing, power electronics, automation, and high-throughput logistics. These facilities impose significant electrical load, thermal management, and site electrification requirements, and serve as anchor nodes within regional supply chains and energy infrastructure.