273 kWh
Energy Capacity
High-density storage for commercial and industrial sites.
Flagship product
Series-20 Smart Battery System
High-performance air-cooled energy storage for commercial and industrial applications.
273 kWh capacityNo HVAC requiredOutdoor-rated platform
Product highlights
Enterprise-grade performance in a single platform
The Series-20 consolidates thermal design, power delivery, and outdoor deployment into a streamlined battery system built for modern energy infrastructure.
976 kW
Guaranteed Constant Power
Engineered output for repeatable utility and peak demand use.
1186 Vdc
Nominal Voltage
High-voltage architecture for efficient system integration.
8000+
Cycle Life
Long-duration performance designed for intensive daily cycling.
IP54
Outdoor Rated
Built for exposed deployments with dust and splash resistance.
20-Year
Design Life
Enterprise-grade asset life profile for long-term deployment.
System overview
Built for reliability, scalability, and harsh-environment operation
The Series-20 Smart Battery System is an air-cooled energy storage platform engineered for reliability, scalability, and operation in harsh environments without requiring HVAC systems.
Technical summary
Series-20 pairs a compact outdoor enclosure with a high-voltage sodium-ion architecture to support utility and commercial deployments that need dependable performance without extra thermal infrastructure.
It is intended for owners who want predictable energy output, lower operational complexity, and a durable asset profile that can sit directly in the field.
No HVAC systems required
Outdoor industrial deployment
Smart EMS integration
Long-life sodium-ion chemistry
Key advantages
Modern design choices that reduce complexity and improve uptime
Each element of the Series-20 is tuned for enterprise deployment: fewer moving parts, smarter integration, and a more resilient operating profile.
Air-Cooled Architecture
Simplified thermal management reduces infrastructure complexity and service overhead.
No HVAC Required
Delivers dependable operation without the energy penalty of active building cooling.
Extreme Temperature Operation
Designed to maintain performance across demanding hot and cold conditions.
Smart EMS Integration
Built to connect with modern energy management systems and site controls.
Long-Life Sodium-Ion Chemistry
Durable chemistry supports safe, scalable operation with long asset life.
Outdoor Industrial Deployment
Purpose-built for utility yards, campuses, and other heavy-duty environments.
Technical specifications
Enterprise-style spec table for buyers and engineering teams
A concise technical reference for procurement, engineering, and deployment planning.
| Energy Capacity | 273 kWh |
|---|---|
| Usable Capacity | 224 kWh |
| Max Rated Power | 1091 kW |
| Guaranteed Power | 976 kW |
| Voltage Range | 624–1456 Vdc |
| Duration | 2.2 hours |
| Operating Temperature | -40°C to 45°C discharge 15°C to 45°C charge |
| Dimensions | 6096 × 2438 × 2896 |
| Total Cells | 3328 |
| BMS | Nuvation NUVG5 & NUVMSC3 |
Applications
Use cases across utility, commercial, and industrial energy markets
The Series-20 is designed to slot into high-value energy workflows where scale, resilience, and operating simplicity matter.
Peak Shaving
Reduce demand charges and smooth site load spikes.
Renewable Integration
Stabilize solar and wind generation across variable output.
Utility Storage
Provide grid support with scalable distributed storage assets.
Microgrids
Support resilient islanded and hybrid power architectures.
Backup Power
Maintain continuity for critical loads and mission-sensitive sites.
Industrial Energy Management
Optimize energy use across warehouses, plants, and campuses.
Final CTA
Ready to deploy scalable energy storage?
Talk with the Coulomb team about utility-scale deployment, commercial project requirements, and the right Series-20 configuration for your site.