The Xtreme Power Conversion M90S-12S and the RoseWater Energy HUB20 are high-capacity UPS solutions designed for residential, commercial, and specialty power applications.
While both systems provide premium power protection, the M90S-12S is a true modular online UPS platform with scalable power and battery modules, whereas the HUB20 is a fixed-capacity, single-enclosure system that requires traditional rigging and installation methods.
High-Capacity UPS Comparison
| Feature | XTREME POWER M90S-12S | RoseWater Energy HUB20 | XPCC Advantage |
| System Architecture | True modular online UPS | Fixed-capacity integrated system | Modular design supports growth and redundancy over time |
| Scalable Capacity | 6, 12, 18, 24, 30, 36, 42, or 48 kW | 20 kW fixed | Capacity and redundancy can be tailored as needs evolve |
| Rectifier Rating | Fully rated for system load | 9.6 kW | Supports full load without relying on batteries, extending battery life |
| Universal Slots | Yes — power or battery modules | No | Simplifies upgrades and system reconfiguration |
| Efficiency | Up to 98% (ECO) / ~94% online | ~89% (calculated) | Lower energy consumption, heat output, and cooling demand |
| Dimensions (UPS with batteries) | 23.6″ W × 36.0″ D × 79.1″ H (≈5.9 sq ft) | 28.1″ W × 26.25″ D × 84″ H (≈5.1 sq ft) | More than 2× usable capacity in a comparable footprint |
| Voltage Options | 120/240 V or 120/208 V (2P, N, G) | 120/240 V only | Supports both common split-phase voltages |
| Display & Diagnostics | Chassis + module-level LCDs | Chassis-level LCD | Better visibility and faster troubleshooting |
| Rigging & Installation | Casters; modular field assembly | Rigging required | Easier transport, positioning, and on-site installation |
| Certifications & Compliance | UL, cUL, TAA Compliant | UL, cUL (TAA varies) | Clear positioning for regulated markets |
| Warranty Coverage | 3 years (electronics & batteries) | 3-year onsite warranty | Onsite service optional with XPCC |
Printable Comparison PDF
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Where the M90S-12S Excels
- Applications requiring scalable capacity from 6–48 kW
- Projects needing true online UPS architecture with modular redundancy
- Installations prioritizing high efficiency and reduced thermal load
- Sites that benefit from simpler transport and installation without heavy rigging
- Regulated environments requiring TAA-compliant solutions
When RoseWater Energy HUB20 May Be a Fit
- Fixed-capacity deployments at 20 kW
- Residential or specialty installations standardized on the HUB platform
- Environments where future expansion is not anticipated
Who Should Choose Which
Choose Xtreme Power Conversion M90S-12S if you need:
- A modular online UPS that scales with demand
- Higher efficiency and lower operating cost
- Flexible voltage options (120/240 V and 120/208 V)
- Easier transport, placement, and installation
- Clear positioning for regulated or TAA-restricted procurements
Choose RoseWater Energy HUB20 if you need:
- A fixed 20 kW system with integrated enclosure
- No requirement for modular expansion or reconfiguration
Ideal Applications
- High-end residential and luxury homes
- Commercial and specialty AV installations
- Healthcare and laboratory facilities
- Government and education infrastructure
- Projects requiring scalable, high-capacity UPS protection
Plan with Confidence
Request a Quote
Speak with an Xtreme Power Conversion specialist to configure the right M90S-12S modular architecture for your capacity, runtime, and compliance requirements.
Xtreme Power Conversion
Phone: (800) 582-4524
Email: sales@xpcc.com